Merge branch 'master' into master

algorithms/README.md

@@ -8,3 +8,4 @@
 - [Check If a Number Is Prime in Java](http://www.baeldung.com/java-prime-numbers)
 - [Example of Hill Climbing Algorithm](http://www.baeldung.com/java-hill-climbing-algorithm)
 - [Monte Carlo Tree Search for Tic-Tac-Toe Game](http://www.baeldung.com/java-monte-carlo-tree-search)
+- [String Search Algorithms for Large Texts](http://www.baeldung.com/java-full-text-search-algorithms)

apache-shiro/README.md

@@ -0,0 +1,2 @@
+### Relevant articles
+- [Introduction to Apache Shiro](http://www.baeldung.com/apache-shiro)

bootique/README.md

@@ -0,0 +1,2 @@
+### Relevant Articles:
+- [Introduction to Bootique](http://www.baeldung.com/bootique)

core-java-9/README.md

@@ -16,3 +16,4 @@
 - [Java 9 Optional API Additions](http://www.baeldung.com/java-9-optional)
 - [Java 9 Reactive Streams](http://www.baeldung.com/java-9-reactive-streams)
 - [How to Get All Dates Between Two Dates?](http://www.baeldung.com/java-between-dates)
+- [Java 9 java.util.Objects Additions](http://www.baeldung.com/java-9-objects-new)

core-java-concurrency/src/test/java/com/baeldung/concurrent/synchronize/BaeldungSychronizedBlockTest.java

@@ -18,7 +18,7 @@ public class BaeldungSychronizedBlockTest {
 
         IntStream.range(0, 1000)
           .forEach(count -> service.submit(synchronizedBlocks::performSynchronisedTask));
-        service.awaitTermination(100, TimeUnit.MILLISECONDS);
+        service.awaitTermination(500, TimeUnit.MILLISECONDS);
 
         assertEquals(1000, synchronizedBlocks.getCount());
     }
@@ -29,7 +29,7 @@ public class BaeldungSychronizedBlockTest {
 
         IntStream.range(0, 1000)
           .forEach(count -> service.submit(BaeldungSynchronizedBlocks::performStaticSyncTask));
-        service.awaitTermination(100, TimeUnit.MILLISECONDS);
+        service.awaitTermination(500, TimeUnit.MILLISECONDS);
 
         assertEquals(1000, BaeldungSynchronizedBlocks.getStaticCount());
     }

core-java/README.md

@@ -99,4 +99,10 @@
 - [ClassNotFoundException vs NoClassDefFoundError](http://www.baeldung.com/java-classnotfoundexception-and-noclassdeffounderror)
 - [Guide to UUID in Java](http://www.baeldung.com/java-uuid)
 - [Guide to Escaping Characters in Java RegExps](http://www.baeldung.com/java-regexp-escape-char)
+- [Guide to hashCode() in Java](http://www.baeldung.com/java-hashcode)
+- [Collect a Java Stream to an Immutable Collection](http://www.baeldung.com/java-stream-immutable-collection)
+- [Difference between URL and URI](http://www.baeldung.com/java-url-vs-uri)
+- [Broadcasting and Multicasting in Java](http://www.baeldung.com/java-broadcast-multicast)
+- [Converting a List to String in Java](http://www.baeldung.com/java-list-to-string)
+- [CharSequence vs. String in Java](http://www.baeldung.com/java-char-sequence-string)
 - [Period and Duration in Java](http://www.baeldung.com/java-period-duration)

core-java/pom.xml

@@ -211,6 +211,11 @@
             <artifactId>jmh-generator-annprocess</artifactId>
             <version>1.19</version>
         </dependency>
+		<dependency>
+		    <groupId>org.springframework</groupId>
+		    <artifactId>spring-web</artifactId>
+		    <version>4.3.4.RELEASE</version>
+		</dependency>
     </dependencies>
 
     <build>
@@ -239,6 +244,7 @@
                 <artifactId>maven-surefire-plugin</artifactId>
                 <configuration>
                     <excludes>
+                        <exclude>**/*LiveTest.java</exclude>
                         <exclude>**/*IntegrationTest.java</exclude>
                         <exclude>**/*LongRunningUnitTest.java</exclude>
                         <exclude>**/*ManualTest.java</exclude>
@@ -373,30 +379,7 @@
                 </configuration>
             </plugin>
 
-            <plugin>
-                <groupId>org.codehaus.mojo</groupId>
-                <artifactId>exec-maven-plugin</artifactId>
 
-                <executions>
-                    <execution>
-                        <id>run-benchmarks</id>
-                        <phase>integration-test</phase>
-                        <goals>
-                            <goal>exec</goal>
-                        </goals>
-                        <configuration>
-                            <classpathScope>test</classpathScope>
-                            <executable>java</executable>
-                            <arguments>
-                                <argument>-classpath</argument>
-                                <classpath/>
-                                <argument>org.openjdk.jmh.Main</argument>
-                                <argument>.*</argument>
-                            </arguments>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
         </plugins>
 
     </build>
@@ -431,6 +414,31 @@
                             </systemPropertyVariables>
                         </configuration>
                     </plugin>
+                    <plugin>
+                        <groupId>org.codehaus.mojo</groupId>
+                        <artifactId>exec-maven-plugin</artifactId>
+
+                        <executions>
+                            <execution>
+                                <id>run-benchmarks</id>
+                            <!--    <phase>integration-test</phase>-->
+                                <phase>none</phase>
+                                <goals>
+                                    <goal>exec</goal>
+                                </goals>
+                                <configuration>
+                                    <classpathScope>test</classpathScope>
+                                    <executable>java</executable>
+                                    <arguments>
+                                        <argument>-classpath</argument>
+                                        <classpath/>
+                                        <argument>org.openjdk.jmh.Main</argument>
+                                        <argument>.*</argument>
+                                    </arguments>
+                                </configuration>
+                            </execution>
+                        </executions>
+                    </plugin>
                 </plugins>
             </build>
         </profile>
@@ -461,7 +469,7 @@
         <protonpack.version>1.13</protonpack.version>
         <streamex.version>0.6.5</streamex.version>
         <vavr.version>0.9.0</vavr.version>
-
+        
         <!-- testing -->
         <org.hamcrest.version>1.3</org.hamcrest.version>
         <junit.version>4.12</junit.version>

core-java/src/test/java/com/baeldung/encoderdecoder/EncoderDecoderUnitTest.java

@@ -1,20 +1,23 @@
 package com.baeldung.encoderdecoder;
 
+import static java.util.stream.Collectors.joining;
+import static org.hamcrest.CoreMatchers.is;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URL;
+import java.net.URLDecoder;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+
 import org.hamcrest.CoreMatchers;
 import org.junit.Assert;
 import org.junit.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-
-import java.io.UnsupportedEncodingException;
-import java.net.*;
-import java.nio.charset.StandardCharsets;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.Map;
-
-import static java.util.stream.Collectors.joining;
-import static org.hamcrest.CoreMatchers.*;
+import org.springframework.web.util.UriUtils;
 
 public class EncoderDecoderUnitTest {
 
@@ -76,19 +79,20 @@ public class EncoderDecoderUnitTest {
 
     private String encodePath(String path) {
         try {
-            path = new URI(null, null, path, null).getPath();
-        } catch (URISyntaxException e) {
+            path = UriUtils.encodePath(path, "UTF-8");
+        } catch (UnsupportedEncodingException e) {
             LOGGER.error("Error encoding parameter {}", e.getMessage(), e);
         }
         return path;
     }
 
     @Test
-    public void givenPath_thenEncodeDecodePath() throws URISyntaxException {
-        URI uri = new URI(null, null, "/Path 1/Path+2", null);
-
-        Assert.assertEquals("/Path 1/Path+2", uri.getPath());
-        Assert.assertEquals("/Path%201/Path+2", uri.getRawPath());
+    public void givenPathSegment_thenEncodeDecode() throws UnsupportedEncodingException {
+        String pathSegment = "/Path 1/Path+2";
+        String encodedPathSegment = encodePath(pathSegment);
+        String decodedPathSegment = UriUtils.decode(encodedPathSegment, "UTF-8");
+        Assert.assertEquals("/Path%201/Path+2", encodedPathSegment);
+        Assert.assertEquals("/Path 1/Path+2", decodedPathSegment);
     }
 
     @Test

core-java/src/test/java/com/baeldung/java/nio/selector/NioEchoLiveTest.java

@@ -8,10 +8,10 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-public class NioEchoIntegrationTest {
+public class NioEchoLiveTest {
 
-    Process server;
-    EchoClient client;
+    private Process server;
+    private EchoClient client;
 
     @Before
     public void setup() throws IOException, InterruptedException {

core-java/src/test/java/com/baeldung/jdbc/JdbcLiveTest.java

@@ -21,9 +21,9 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-public class JdbcIntegrationTest {
+public class JdbcLiveTest {
 
-    private static final Logger LOG = Logger.getLogger(JdbcIntegrationTest.class);
+    private static final Logger LOG = Logger.getLogger(JdbcLiveTest.class);
 
     private Connection con;
 

core-java/src/test/java/com/baeldung/networking/udp/UDPLiveTest.java

@@ -9,7 +9,7 @@ import java.io.IOException;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 
-public class UDPIntegrationTest {
+public class UDPLiveTest {
     private EchoClient client;
 
     @Before

core-java/src/test/java/com/baeldung/networking/udp/broadcast/BroadcastLiveTest.java

@@ -7,7 +7,7 @@ import java.io.IOException;
 
 import static org.junit.Assert.assertEquals;
 
-public class BroadcastIntegrationTest {
+public class BroadcastLiveTest {
     private BroadcastingClient client;
 
     @Test

core-java/src/test/java/com/baeldung/networking/udp/multicast/MulticastLiveTest.java

@@ -7,7 +7,7 @@ import java.io.IOException;
 
 import static org.junit.Assert.assertEquals;
 
-public class MulticastIntegrationTest {
+public class MulticastLiveTest {
     private MulticastingClient client;
 
     @Test

core-java/src/test/java/com/baeldung/printscreen/ScreenshotLiveTest.java

@@ -7,7 +7,7 @@ import java.io.File;
 
 import static org.junit.Assert.assertTrue;
 
-public class ScreenshotIntegrationTest {
+public class ScreenshotLiveTest {
 
     private Screenshot screenshot = new Screenshot("Screenshot.jpg");
     private File file = new File("Screenshot.jpg");

core-java/src/test/java/org/baeldung/java/diamond/Car.java

@@ -0,0 +1,5 @@
+package org.baeldung.java.diamond;
+
+public class Car<T extends Engine> implements Vehicle<T> {
+
+}

core-java/src/test/java/org/baeldung/java/diamond/DiamondOperatorUnitTest.java

@@ -0,0 +1,13 @@
+package org.baeldung.java.diamond;
+
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.Test;
+
+public class DiamondOperatorUnitTest {
+    @Test
+    public void whenCreateCarUsingDiamondOperator_thenSuccess() {
+        Car<Diesel> myCar = new Car<>();
+        assertNotNull(myCar);
+    }
+}

core-java/src/test/java/org/baeldung/java/diamond/Diesel.java

@@ -0,0 +1,10 @@
+package org.baeldung.java.diamond;
+
+public class Diesel implements Engine {
+
+	@Override
+	public void start() {
+		System.out.println("Started Diesel...");
+	}
+
+}

core-java/src/test/java/org/baeldung/java/diamond/Engine.java

@@ -0,0 +1,6 @@
+package org.baeldung.java.diamond;
+
+public interface Engine {
+
+	void start();
+}

core-java/src/test/java/org/baeldung/java/diamond/Vehicle.java

@@ -0,0 +1,5 @@
+package org.baeldung.java.diamond;
+
+public interface Vehicle<T extends Engine> {
+
+}

core-java/src/test/java/org/baeldung/java/rawtypes/RawTypesTest.java

@@ -0,0 +1,17 @@
+package org.baeldung.java.rawtypes;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+
+public class RawTypesTest {
+    @Test
+    public void shouldCreateListUsingRawTypes() {
+        @SuppressWarnings("rawtypes")
+        List myList = new ArrayList();
+        myList.add(new Object());
+        myList.add("2");
+        myList.add(new Integer(1));
+    }
+}

geotools/pom.xml

@@ -0,0 +1,74 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.baeldung</groupId>
+    <artifactId>geotools</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <name>geotools</name>
+    <url>http://maven.apache.org</url>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.geotools</groupId>
+            <artifactId>gt-shapefile</artifactId>
+            <version>${geotools-shapefile.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.geotools</groupId>
+            <artifactId>gt-epsg-hsql</artifactId>
+            <version>${geotools.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.geotools</groupId>
+            <artifactId>gt-swing</artifactId>
+            <version>${geotools-swing.version}</version>
+        </dependency>
+    </dependencies>
+    <repositories>
+        <repository>
+            <id>maven2-repository.dev.java.net</id>
+            <name>Java.net repository</name>
+            <url>http://download.java.net/maven/2</url>
+        </repository>
+        <repository>
+            <id>osgeo</id>
+            <name>Open Source Geospatial Foundation Repository</name>
+            <url>http://download.osgeo.org/webdav/geotools/</url>
+        </repository>
+        <repository>
+            <snapshots>
+                <enabled>true</enabled>
+            </snapshots>
+            <id>opengeo</id>
+            <name>OpenGeo Maven Repository</name>
+            <url>http://repo.opengeo.org</url>
+        </repository>
+    </repositories>
+    <build>
+        <plugins>
+            <plugin>
+                <inherited>true</inherited>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+       <properties>
+        <geotools.version>15.2</geotools.version>
+        <geotools-swing.version>15.2</geotools-swing.version>
+        <geotools-shapefile.version>15.2</geotools-shapefile.version>
+    </properties>
+</project>

geotools/src/main/java/com/baeldung/geotools/ShapeFile.java

@@ -1,12 +1,8 @@
 package com.baeldung.geotools;
 
-import java.io.File;
-import java.io.Serializable;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
+import com.vividsolutions.jts.geom.Coordinate;
+import com.vividsolutions.jts.geom.GeometryFactory;
+import com.vividsolutions.jts.geom.Point;
 import org.geotools.data.DataUtilities;
 import org.geotools.data.DefaultTransaction;
 import org.geotools.data.Transaction;
@@ -23,9 +19,13 @@ import org.geotools.swing.data.JFileDataStoreChooser;
 import org.opengis.feature.simple.SimpleFeature;
 import org.opengis.feature.simple.SimpleFeatureType;
 
-import com.vividsolutions.jts.geom.Coordinate;
-import com.vividsolutions.jts.geom.GeometryFactory;
-import com.vividsolutions.jts.geom.Point;
+import java.io.File;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Function;
 
 public class ShapeFile {
 
@@ -41,22 +41,117 @@ public class ShapeFile {
 
         SimpleFeatureType CITY = createFeatureType();
 
-        SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder(CITY);
-
-        addLocations(featureBuilder, collection);
+        addLocations(CITY, collection);
 
         File shapeFile = getNewShapeFile();
 
         ShapefileDataStoreFactory dataStoreFactory = new ShapefileDataStoreFactory();
 
         Map<String, Serializable> params = new HashMap<String, Serializable>();
+
+        ShapefileDataStore dataStore = setDataStoreParams(dataStoreFactory, params, shapeFile, CITY);
+
+        writeToFile(dataStore, collection);
+    }
+
+    static SimpleFeatureType createFeatureType() {
+
+        SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
+        builder.setName("Location");
+        builder.setCRS(DefaultGeographicCRS.WGS84);
+
+        builder.add("Location", Point.class);
+        builder.length(15)
+          .add("Name", String.class);
+
+        return builder.buildFeatureType();
+    }
+
+    static void addLocations(SimpleFeatureType CITY, DefaultFeatureCollection collection) {
+
+        Map<String, List<Double>> locations = new HashMap<>();
+
+        double lat = 13.752222;
+        double lng = 100.493889;
+        addToLocationMap("Bangkok", lat, lng, locations);
+
+        lat = 53.083333;
+        lng = -0.15;
+        addToLocationMap("New York", lat, lng, locations);
+
+        lat = -33.925278;
+        lng = 18.423889;
+        addToLocationMap("Cape Town", lat, lng, locations);
+
+        lat = -33.859972;
+        lng = 151.211111;
+        addToLocationMap("Sydney", lat, lng, locations);
+
+        lat = 45.420833;
+        lng = -75.69;
+        addToLocationMap("Ottawa", lat, lng, locations);
+
+        lat = 30.07708;
+        lng = 31.285909;
+        addToLocationMap("Cairo", lat, lng, locations);
+
+        GeometryFactory geometryFactory = JTSFactoryFinder.getGeometryFactory(null);
+
+        locations.entrySet().stream()
+          .map(toFeature(CITY, geometryFactory))
+          .forEach(collection::add);
+    }
+
+    private static Function<Map.Entry<String, List<Double>>, SimpleFeature> toFeature(SimpleFeatureType CITY, GeometryFactory geometryFactory) {
+        return location -> {
+            Point point = geometryFactory.createPoint(
+              new Coordinate(location.getValue()
+                .get(0), location.getValue().get(1)));
+
+            SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder(CITY);
+            featureBuilder.add(point);
+            featureBuilder.add(location.getKey());
+            return featureBuilder.buildFeature(null);
+        };
+    }
+
+    private static void addToLocationMap(String name, double lat, double lng, Map<String, List<Double>> locations) {
+        List<Double> coordinates = new ArrayList<>();
+
+        coordinates.add(lat);
+        coordinates.add(lng);
+        locations.put(name, coordinates);
+    }
+
+    private static File getNewShapeFile() {
+        String filePath = new File(".").getAbsolutePath() + FILE_NAME;
+
+        JFileDataStoreChooser chooser = new JFileDataStoreChooser("shp");
+        chooser.setDialogTitle("Save shapefile");
+        chooser.setSelectedFile(new File(filePath));
+
+        int returnVal = chooser.showSaveDialog(null);
+
+        if (returnVal != JFileDataStoreChooser.APPROVE_OPTION) {
+            System.exit(0);
+        }
+
+        return chooser.getSelectedFile();
+    }
+
+    private static ShapefileDataStore setDataStoreParams(ShapefileDataStoreFactory dataStoreFactory, Map<String, Serializable> params, File shapeFile, SimpleFeatureType CITY) throws Exception {
         params.put("url", shapeFile.toURI()
-            .toURL());
+          .toURL());
         params.put("create spatial index", Boolean.TRUE);
 
         ShapefileDataStore dataStore = (ShapefileDataStore) dataStoreFactory.createNewDataStore(params);
         dataStore.createSchema(CITY);
 
+        return dataStore;
+    }
+
+    private static void writeToFile(ShapefileDataStore dataStore, DefaultFeatureCollection collection) throws Exception {
+
         // If you decide to use the TYPE type and create a Data Store with it,
         // You will need to uncomment this line to set the Coordinate Reference System
         // newDataStore.forceSchemaCRS(DefaultGeographicCRS.WGS84);
@@ -73,11 +168,9 @@ public class ShapeFile {
             try {
                 featureStore.addFeatures(collection);
                 transaction.commit();
-
             } catch (Exception problem) {
                 problem.printStackTrace();
                 transaction.rollback();
-
             } finally {
                 transaction.close();
             }
@@ -86,102 +179,5 @@ public class ShapeFile {
             System.out.println(typeName + " does not support read/write access");
             System.exit(1);
         }
-
     }
-
-    public static SimpleFeatureType createFeatureType() {
-
-        SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
-        builder.setName("Location");
-        builder.setCRS(DefaultGeographicCRS.WGS84);
-
-        builder.add("Location", Point.class);
-        builder.length(15)
-            .add("Name", String.class);
-
-        SimpleFeatureType CITY = builder.buildFeatureType();
-
-        return CITY;
-    }
-
-    public static void addLocations(SimpleFeatureBuilder featureBuilder, DefaultFeatureCollection collection) {
-
-        Map<String, List<Double>> locations = new HashMap<>();
-
-        double lat = 13.752222;
-        double lng = 100.493889;
-        String name = "Bangkok";
-        addToLocationMap(name, lat, lng, locations);
-
-        lat = 53.083333;
-        lng = -0.15;
-        name = "New York";
-        addToLocationMap(name, lat, lng, locations);
-
-        lat = -33.925278;
-        lng = 18.423889;
-        name = "Cape Town";
-        addToLocationMap(name, lat, lng, locations);
-
-        lat = -33.859972;
-        lng = 151.211111;
-        name = "Sydney";
-        addToLocationMap(name, lat, lng, locations);
-
-        lat = 45.420833;
-        lng = -75.69;
-        name = "Ottawa";
-        addToLocationMap(name, lat, lng, locations);
-
-        lat = 30.07708;
-        lng = 31.285909;
-        name = "Cairo";
-        addToLocationMap(name, lat, lng, locations);
-
-        GeometryFactory geometryFactory = JTSFactoryFinder.getGeometryFactory(null);
-
-        for (Map.Entry<String, List<Double>> location : locations.entrySet()) {
-            Point point = geometryFactory.createPoint(new Coordinate(location.getValue()
-                .get(0),
-                location.getValue()
-                    .get(1)));
-            featureBuilder.add(point);
-            featureBuilder.add(name);
-            SimpleFeature feature = featureBuilder.buildFeature(null);
-            collection.add(feature);
-        }
-
-    }
-    
-    private static void addToLocationMap(String name, double lat, double lng, Map<String, List<Double>> locations) {
-        List<Double> coordinates = new ArrayList<>();
-
-        coordinates.add(lat);
-        coordinates.add(lng);
-        locations.put(name, coordinates);
-    }
-
-    private static File getNewShapeFile() {
-        String filePath = new File(".").getAbsolutePath() + FILE_NAME;
-        
-
-        JFileDataStoreChooser chooser = new JFileDataStoreChooser("shp");
-        chooser.setDialogTitle("Save shapefile");
-        chooser.setSelectedFile(new File(filePath));
-
-        int returnVal = chooser.showSaveDialog(null);
-
-        if (returnVal != JFileDataStoreChooser.APPROVE_OPTION) {
-            System.exit(0);
-        }
-
-        File shapeFile = chooser.getSelectedFile();
-        if (shapeFile.equals(filePath)) {
-            System.out.println("Error: cannot replace " + filePath);
-            System.exit(0);
-        }
-
-        return shapeFile;
-    }
-
 }

geotools/src/test/java/com/baeldung/geotools/GeoToolsUnitTest.java

@@ -7,21 +7,16 @@ import org.geotools.feature.simple.SimpleFeatureBuilder;
 import org.junit.Test;
 import org.opengis.feature.simple.SimpleFeatureType;
 
-public class GeoToolsUnitTestTest {
+public class GeoToolsUnitTest {
 
     @Test
     public void givenFeatureType_whenAddLocations_returnFeatureCollection() {
-
         DefaultFeatureCollection collection = new DefaultFeatureCollection();
 
         SimpleFeatureType CITY = ShapeFile.createFeatureType();
 
-        SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder(CITY);
-
-        ShapeFile.addLocations(featureBuilder, collection);
+        ShapeFile.addLocations(CITY, collection);
 
         assertNotNull(collection);
-
     }
-
 }

grpc/README.md

@@ -0,0 +1,2 @@
+### Relevant Articles:
+- [Introduction to gRPC](http://www.baeldung.com/grpc-introduction)

javaxval/bean-validation/pom.xml

@@ -0,0 +1,42 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.baeldung.beanvalidation</groupId>
+    <artifactId>beanvalidation</artifactId>
+    <version>1.0</version>
+    <packaging>jar</packaging>
+    <name>beanvalidation</name>
+    <url>http://maven.apache.org</url>
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>javax.validation</groupId>
+            <artifactId>validation-api</artifactId>
+            <version>2.0.0.Final</version>
+        </dependency>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-validator</artifactId>
+            <version>6.0.2.Final</version>
+        </dependency>
+        <dependency>
+            <groupId>javax.el</groupId>
+            <artifactId>javax.el-api</artifactId>
+            <version>3.0.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.glassfish.web</groupId>
+            <artifactId>javax.el</artifactId>
+            <version>2.2.4</version>
+        </dependency>
+    </dependencies>
+</project>

javaxval/bean-validation/src/main/java/com/baeldung/beanvalidation/application/Application.java

@@ -0,0 +1,17 @@
+package com.baeldung.beanvalidation.application;
+
+import javax.validation.Validation;
+import javax.validation.Validator;
+import com.baeldung.beanvalidation.model.User;
+
+public class Application {
+    
+    public static void main( String[] args ) {
+        Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
+        User user = new User();
+        user.setName("Mary");
+        user.setEmail("no-email");
+        user.setAge(36);
+        validator.validate(user).stream().forEach(violation -> System.out.println(violation.getMessage()));
+    }
+}

javaxval/bean-validation/src/main/java/com/baeldung/beanvalidation/container/IntegerContainer.java

@@ -0,0 +1,13 @@
+package com.baeldung.beanvalidation.container;
+
+import java.util.Optional;
+import javax.validation.constraints.Positive;
+
+public class IntegerContainer {
+
+    private Optional<@Positive(message = "Value must be a positive integer") Integer> container = Optional.empty();
+    
+    public void addElement(int element) {
+        container = Optional.of(element);
+    }
+}

javaxval/bean-validation/src/main/java/com/baeldung/beanvalidation/container/StringContainer.java

@@ -0,0 +1,14 @@
+package com.baeldung.beanvalidation.container;
+
+import java.util.ArrayList;
+import java.util.List;
+import javax.validation.constraints.NotNull;
+
+public class StringContainer {
+    
+    private List<@NotNull String> container = new ArrayList<>();
+    
+    public void addElement(String element) {
+        container.add(element);
+    }
+}

javaxval/bean-validation/src/main/java/com/baeldung/beanvalidation/model/User.java

@@ -0,0 +1,48 @@
+package com.baeldung.beanvalidation.model;
+
+import java.io.Serializable;
+import javax.validation.constraints.Max;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
+import org.hibernate.validator.constraints.Email;
+
+public class User implements Serializable {
+    
+    private static final long serialVersionUID = 1L;
+
+    @NotNull(message = "Name cannot be null")
+    @Size(min = 2, max = 32, message = "Name must be between 2 and 32 characters")
+    private String name;
+    
+    @Email(message = "Email must be a well-formed email address")
+    private String email;
+    
+    @Min(value = 1, message = "Age must not be lesser than 1")
+    @Max(value = 99, message = "Age must not be greater than 99")
+    private int age;
+    
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+}

javaxval/bean-validation/src/main/java/com/baeldung/beanvalidation/service/EntityService.java

@@ -0,0 +1,8 @@
+package com.baeldung.beanvalidation.service;
+
+public interface EntityService {
+    
+    public String toString();
+    
+    public void processEntity();
+}

javaxval/bean-validation/src/main/java/com/baeldung/beanvalidation/service/UserService.java

@@ -0,0 +1,45 @@
+package com.baeldung.beanvalidation.service;
+
+import java.io.Serializable;
+import javax.validation.Valid;
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
+import com.baeldung.beanvalidation.model.User;
+
+public class UserService implements EntityService, Serializable {
+    
+    private static final long serialVersionUID = 1L;
+
+    @Valid
+    private User user;
+    
+    @NotNull(message = "FileName cannot be null")
+    @Size(min = 5, max = 10, message = "FileName must be between 5 and 10 characters")
+    private String fileName;
+    
+    public User getUser() {
+        return user;
+    }
+    
+    public void setUser(User user) {
+        this.user = user;
+    }
+    
+    public String getFileName() {
+        return fileName;
+    }
+    
+    public void setFileName(String fileName) {
+        this.fileName = fileName;
+    }
+    
+    @Override
+    public void processEntity() {
+        // process the user here
+    }
+
+    @Override
+    public String toString() {
+        return "UserService [user=" + user + ", fileName=" + fileName + "]";
+    }
+}

javaxval/bean-validation/src/test/java/com/baeldung/beanvalidation/ValidationTest.java

@@ -0,0 +1,134 @@
+package com.baeldung.beanvalidation;
+
+import javax.validation.ConstraintViolation;
+import javax.validation.Validation;
+import javax.validation.Validator;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import com.baeldung.beanvalidation.container.IntegerContainer;
+import com.baeldung.beanvalidation.container.StringContainer;
+import com.baeldung.beanvalidation.model.User;
+import com.baeldung.beanvalidation.service.UserService;
+import java.util.Set;
+import java.util.stream.Collectors;
+import static org.junit.Assert.*;
+
+public class ValidationTest {
+
+    private static Validator validator;
+    private static User user;
+    
+    @BeforeClass
+    public static void setUpHibernateValidatorInstance() {
+        validator = Validation.buildDefaultValidatorFactory().getValidator();
+    }
+    
+    @BeforeClass
+    public static void setUpUserInstance() {
+        user = new User();
+    }
+    
+    @AfterClass
+    public static void tearDownHibernateValidatorInstance() {
+        validator = null;
+    }
+    
+    @AfterClass
+    public static void tearDownUserInstance() {
+        user = null;
+    }
+    
+    @Test
+    public void givenNullName_whenValidated_thenMessageDescriptorForName() {
+        user.setName(null);
+        user.setEmail("mary@domain.com");
+        user.setAge(36);
+        assertEquals("Name cannot be null", validator.validate(user).stream().map(violation -> violation.getMessage()).collect(Collectors.joining()));
+    }
+    
+    @Test
+    public void givenInvalidEmail_whenValidated_thenMessageDescriptorforEmail() {
+        user.setName("Mary");
+        user.setEmail("no-email");
+        user.setAge(36);
+        assertEquals("Email must be a well-formed email address", validator.validate(user).stream().map(violation -> violation.getMessage()).collect(Collectors.joining()));
+    }
+    
+    @Test
+    public void givenAgeLesserThanLowerBound_whenValidated_thenMessageDescriptorforAge() {
+        user.setName("Mary");
+        user.setEmail("mary@domain.com");
+        user.setAge(0);
+        assertEquals("Age must not be lesser than 1", validator.validate(user).stream().map(violation -> violation.getMessage()).collect(Collectors.joining()));
+    }
+    
+    @Test
+    public void givenAgeGreaterThanUpperBound_whenValidated_thenMessageDescriptorforAge() {
+        user.setName("Mary");
+        user.setEmail("mary@domain.com");
+        user.setAge(100);
+        assertEquals("Age must not be greater than 99", validator.validate(user).stream().map(violation -> violation.getMessage()).collect(Collectors.joining()));
+    }
+    
+    @Test
+    public void givenNullFileName_whenValidated_thenMessageDescriptorforFileName() {
+        user.setName("Mary");
+        user.setEmail("mary@domain.com");
+        user.setAge(36);
+        UserService userService = new UserService();
+        userService.setFileName(null);
+        userService.setUser(user);
+        assertEquals("FileName cannot be null", validator.validate(userService).stream().map(violation -> violation.getMessage()).collect(Collectors.joining()));
+    }
+    
+    @Test
+    public void givenFileNameShortherThanLowerBound_whenValidated_thenMessageDescriptorforFileName() {
+        user.setName("Mary");
+        user.setEmail("mary@domain.com");
+        user.setAge(36);
+        UserService userService = new UserService();
+        userService.setFileName("");
+        userService.setUser(user);
+        assertEquals("FileName must be between 5 and 10 characters", validator.validate(userService).stream().map(violation -> violation.getMessage()).collect(Collectors.joining()));
+    }
+    
+    @Test
+    public void givenFileNameLongerThanUpperBound_whenValidated_thenMessageDescriptorforFileName() {
+        user.setName("Mary");
+        user.setEmail("mary@domain.com");
+        user.setAge(36);
+        UserService userService = new UserService();
+        userService.setFileName("waytoolongfilename");
+        userService.setUser(user);
+        assertEquals("FileName must be between 5 and 10 characters", validator.validate(userService).stream().map(violation -> violation.getMessage()).collect(Collectors.joining()));
+    }
+    
+    @Test
+    public void givenNullUserAndNullFileName_whenValidated_thenTwoConstraintViolations() {
+        user.setName(null);
+        user.setEmail("mary@domain.com");
+        user.setAge(36);
+        UserService userService = new UserService();
+        userService.setFileName(null);
+        userService.setUser(user);
+        Set<ConstraintViolation<UserService>> constraintViolations = validator.validate(userService);
+        assertEquals(2, constraintViolations.size());
+    }
+    
+    @Test
+    public void givenNullElement_whenValidated_thenOneConstraintViolation() {
+        StringContainer container = new StringContainer();
+        container.addElement(null);
+        Set<ConstraintViolation<StringContainer>> constraintViolations = validator.validate(container);
+        assertEquals(1, constraintViolations.size());
+    }
+    
+    @Test
+    public void givenNegativeInteger_whenValidated_thenOneConstraintViolation() {
+        IntegerContainer container = new IntegerContainer();
+        container.addElement(-1);
+        Set<ConstraintViolation<IntegerContainer>> constraintViolations = validator.validate(container);
+        assertEquals(1, constraintViolations.size());
+    }
+}

jee7/README.md

@@ -5,3 +5,4 @@
 - [Introduction to JAX-WS](http://www.baeldung.com/jax-ws)
 - [A Guide to Java EE Web-Related Annotations](http://www.baeldung.com/javaee-web-annotations)
 - [Introduction to Testing with Arquillian](http://www.baeldung.com/arquillian)
+- [Securing Java EE with Spring Security](http://www.baeldung.com/java-ee-spring-security)

jee7/src/test/java/com/baeldung/arquillan/ArquillianLiveTest.java

@@ -22,7 +22,7 @@ import com.baeldung.arquillian.Component;
 import com.baeldung.arquillian.ConvertToLowerCase;
 
 @RunWith(Arquillian.class)
-public class ArquillianTest {
+public class ArquillianLiveTest {
 
     @Deployment
     public static JavaArchive createDeployment() {

junit5/README.md

@@ -5,3 +5,5 @@
 - [A Guide to @RepeatedTest in Junit 5](http://www.baeldung.com/junit-5-repeated-test)
 - [Guide to Dynamic Tests in Junit 5](http://www.baeldung.com/junit5-dynamic-tests)
 - [A Guied to JUnit 5 Extensions](http://www.baeldung.com/junit-5-extensions)
+- [Inject Parameters into JUnit Jupiter Unit Tests](http://www.baeldung.com/junit-5-parameters)
+

kotlin/README.md

@@ -13,4 +13,7 @@
 - [Overview of Kotlin Collections API](http://www.baeldung.com/kotlin-collections-api)
 - [Converting a List to Map in Kotlin](http://www.baeldung.com/kotlin-list-to-map)
 - [Data Classes in Kotlin](http://www.baeldung.com/kotlin-data-classes)
+- [Delegated Properties in Kotlin](http://www.baeldung.com/kotlin-delegated-properties)
+- [Sealed Classes in Kotlin](http://www.baeldung.com/kotlin-sealed-classes)
+
 

kotlin/src/main/kotlin/com/baeldung/kotlin/JvmSample.kt

@@ -0,0 +1,12 @@
+package com.baeldung.kotlin
+
+class JvmSample(text:String) {
+    @JvmField
+    val sampleText:String = text
+}
+
+class CompanionSample {
+    companion object {
+        @JvmField val MAX_LIMIT = 20
+    }
+}

kotlin/src/test/kotlin/com/baeldung/kotlin/JvmSampleTest.kt

@@ -0,0 +1,26 @@
+package com.baeldung.kotlin
+
+import org.junit.Before
+import org.junit.Test
+import kotlin.test.assertTrue
+
+class JvmSampleTest {
+
+    var sample = ""
+
+    @Before
+    fun setUp() {
+        sample = JvmSample("Hello!").sampleText
+    }
+
+    @Test
+    fun givenField_whenCheckValue_thenMatchesValue() {
+        assertTrue(sample == "Hello!")
+    }
+
+    @Test
+    fun givenStaticVariable_whenCheckValue_thenMatchesValue() {
+        // Sample when is treated as a static variable
+        assertTrue(CompanionSample.MAX_LIMIT == 20)
+    }
+}

libraries-data/README.md

@@ -0,0 +1,2 @@
+### Relevant articles
+- [Introduction to Reladomo](http://www.baeldung.com/reladomo)

libraries/README.md

@@ -30,8 +30,17 @@
 - [Introduction to Neuroph](http://www.baeldung.com/neuroph)
 - [Guide to Apache Commons CircularFifoQueue](http://www.baeldung.com/commons-circular-fifo-queue)
 - [Quick Guide to RSS with Rome](http://www.baeldung.com/rome-rss)
+- [Introduction to NoException](http://www.baeldung.com/intrduction-to-noexception)
+- [Introduction to PCollections](http://www.baeldung.com/java-pcollections)
+- [Introduction to Hoverfly in Java](http://www.baeldung.com/hoverfly)
+- [Apache Commons Chain](http://www.baeldung.com/apache-commons-chain)
+- [Introduction to Eclipse Collections](http://www.baeldung.com/eclipse-collections)
+- [DistinctBy in Java Stream API](http://www.baeldung.com/java-streams-distinct-by)
+- [Introduction to Apache Commons CSV](http://www.baeldung.com/apache-commons-csv)
+- [Difference Between Two Dates in Java](http://www.baeldung.com/java-date-difference)
 - [Introduction to NoException](http://www.baeldung.com/no-exception)
 - [Introduction to FunctionalJava](http://www.baeldung.com/functional-java)
+- [Apache Commons IO](http://www.baeldung.com/apache-commons-io)
 
 The libraries module contains examples related to small libraries that are relatively easy to use and does not require any separate module of its own.
 

libraries/pom.xml

@@ -140,7 +140,7 @@
             <artifactId>unit-ri</artifactId>
             <version>1.0.3</version>
         </dependency>
-		<dependency>
+        <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-collections4</artifactId>
             <version>${commons.collections.version}</version>
@@ -487,21 +487,7 @@
             <artifactId>vavr</artifactId>
             <version>${vavr.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.geotools</groupId>
-            <artifactId>gt-shapefile</artifactId>
-            <version>${geotools.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.geotools</groupId>
-            <artifactId>gt-epsg-hsql</artifactId>
-            <version>${geotools.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.geotools</groupId>
-            <artifactId>gt-swing</artifactId>
-            <version>${geotools.version}</version>
-        </dependency>
+        
         <!-- Retrofit -->
         <dependency>
             <groupId>com.squareup.retrofit2</groupId>
@@ -517,6 +503,11 @@
             <groupId>com.squareup.retrofit2</groupId>
             <artifactId>adapter-rxjava</artifactId>
             <version>${retrofit.version}</version>
+        </dependency>        
+        <dependency>
+            <groupId>com.squareup.okhttp3</groupId>
+            <artifactId>logging-interceptor</artifactId>
+            <version>3.9.0</version>
         </dependency>
         <dependency>
             <groupId>com.darwinsys</groupId>
@@ -591,19 +582,6 @@
             <name>Java.net repository</name>
             <url>http://download.java.net/maven/2</url>
         </repository>
-        <repository>
-            <id>osgeo</id>
-            <name>Open Source Geospatial Foundation Repository</name>
-            <url>http://download.osgeo.org/webdav/geotools/</url>
-        </repository>
-        <repository>
-            <snapshots>
-                <enabled>true</enabled>
-            </snapshots>
-            <id>opengeo</id>
-            <name>OpenGeo Maven Repository</name>
-            <url>http://repo.opengeo.org</url>
-        </repository>
         <repository>
             <snapshots>
                 <enabled>false</enabled>
@@ -657,11 +635,12 @@
         <eclipse-collections.version>8.2.0</eclipse-collections.version>
         <streamex.version>0.6.5</streamex.version>
         <vavr.version>0.9.0</vavr.version>
-        <geotools.version>15.2</geotools.version>
+        <joda-time.version>2.9.9</joda-time.version>
+        <hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
         <retrofit.version>2.3.0</retrofit.version>
         <joda-time.version>2.9.9</joda-time.version>
         <hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
-		<protonpack.version>1.14</protonpack.version>
+        <protonpack.version>1.14</protonpack.version>
         <unit-ri.version>1.0.3</unit-ri.version>
         <cache.version>1.0.0</cache.version>
     	<hazelcast.version>3.8.4</hazelcast.version>

libraries/src/main/java/com/baeldung/commons/lang3/SampleLazyInitializer.java

@@ -0,0 +1,11 @@
+package com.baeldung.commons.lang3;
+
+import org.apache.commons.lang3.concurrent.LazyInitializer;
+
+public class SampleLazyInitializer extends LazyInitializer<SampleObject> {
+    
+    @Override
+    protected SampleObject initialize() {
+        return new SampleObject();
+    }
+}

libraries/src/main/java/com/baeldung/commons/lang3/SampleObject.java

@@ -0,0 +1,7 @@
+package com.baeldung.commons.lang3;
+
+public class SampleObject {
+    
+    //Ignored
+
+}

libraries/src/main/java/com/baeldung/retrofitguide/GitHubServiceGenerator.java

@@ -0,0 +1,58 @@
+package com.baeldung.retrofitguide;
+
+import java.io.IOException;
+import okhttp3.Interceptor;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import okhttp3.logging.HttpLoggingInterceptor;
+import retrofit2.Retrofit;
+import retrofit2.converter.gson.GsonConverterFactory;
+
+public class GitHubServiceGenerator {
+
+    private static final String BASE_URL = "https://api.github.com/";
+
+    private static Retrofit.Builder builder
+            = new Retrofit.Builder()
+                    .baseUrl(BASE_URL)
+                    .addConverterFactory(GsonConverterFactory.create());
+
+    private static Retrofit retrofit = builder.build();
+
+    private static OkHttpClient.Builder httpClient
+            = new OkHttpClient.Builder();
+
+    private static HttpLoggingInterceptor logging
+            = new HttpLoggingInterceptor()
+                    .setLevel(HttpLoggingInterceptor.Level.BASIC);
+
+    public static <S> S createService(Class<S> serviceClass) {
+        if (!httpClient.interceptors().contains(logging)) {
+            httpClient.addInterceptor(logging);
+            builder.client(httpClient.build());
+            retrofit = builder.build();
+        }
+        return retrofit.create(serviceClass);
+    }
+
+    public static <S> S createService(Class<S> serviceClass, final String token) {
+        if (token != null) {
+            httpClient.interceptors().clear();
+            httpClient.addInterceptor(new Interceptor() {
+                @Override
+                public Response intercept(Interceptor.Chain chain) throws IOException {
+                    Request original = chain.request();
+                    Request.Builder builder = original.newBuilder()
+                            .header("Authorization", token);
+                    Request request = builder.build();
+                    return chain.proceed(request);
+                }
+            });
+            builder.client(httpClient.build());
+            retrofit = builder.build();
+        }
+        return retrofit.create(serviceClass);
+    }
+
+}

libraries/src/main/java/com/baeldung/retrofitguide/Main.java

@@ -0,0 +1,49 @@
+package com.baeldung.retrofitguide;
+
+import java.io.IOException;
+import okhttp3.OkHttpClient;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+import retrofit2.Retrofit;
+import retrofit2.converter.gson.GsonConverterFactory;
+
+public class Main {
+
+    public static void main(String[] args) {
+        //Manual creation
+        OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("https://api.github.com/")
+                .addConverterFactory(GsonConverterFactory.create())
+                .client(httpClient.build())
+                .build();
+        UserService service = retrofit.create(UserService.class);
+        //Using GitHubServiceGenerator
+        service = GitHubServiceGenerator.createService(UserService.class);
+        Call<User> callSync = service.getUser("eugenp");
+        Call<User> callAsync = service.getUser("eugenp");
+
+        try {
+            Response<User> response = callSync.execute();
+            User user = response.body();
+            System.out.println(user);
+        } catch (IOException ex) {
+        }
+
+        // Execute the call asynchronously. Get a positive or negative callback.
+        callAsync.enqueue(new Callback<User>() {
+            @Override
+            public void onResponse(Call<User> call, Response<User> response) {
+                User user = response.body();
+                System.out.println(user);
+            }
+
+            @Override
+            public void onFailure(Call<User> call, Throwable throwable) {
+                System.out.println(throwable);
+            }
+        });
+
+    }
+}

libraries/src/main/java/com/baeldung/retrofitguide/User.java

@@ -0,0 +1,65 @@
+package com.baeldung.retrofitguide;
+
+public class User {
+
+    private String login;
+    private long id;
+    private String url;
+    private String company;
+    private String blog;
+    private String email;
+
+    public String getLogin() {
+        return login;
+    }
+
+    public void setLogin(String login) {
+        this.login = login;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public String getCompany() {
+        return company;
+    }
+
+    public void setCompany(String company) {
+        this.company = company;
+    }
+
+    public String getBlog() {
+        return blog;
+    }
+
+    public void setBlog(String blog) {
+        this.blog = blog;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    @Override
+    public String toString() {
+        return "User{" + "login=" + login + ", id=" + id + ", url=" + url + ", company=" + company + ", blog=" + blog + ", email=" + email + '}';
+    }
+
+}

libraries/src/main/java/com/baeldung/retrofitguide/UserService.java

@@ -0,0 +1,17 @@
+package com.baeldung.retrofitguide;
+
+import java.util.List;
+import retrofit2.Call;
+import retrofit2.http.GET;
+import retrofit2.http.Path;
+import retrofit2.http.Query;
+
+public interface UserService {
+
+    @GET("/users")
+    public Call<List<User>> getUsers(@Query("per_page") int per_page, @Query("page") int page);
+
+    @GET("/users/{username}")
+    public Call<User> getUser(@Path("username") String username);
+
+}

libraries/src/test/java/com/baeldung/commons/lang3/Lang3UtilsTest.java

@@ -1,6 +1,7 @@
 package com.baeldung.commons.lang3;
 
 import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotSame;
 import static org.junit.Assert.assertSame;
@@ -12,12 +13,14 @@ import java.beans.PropertyChangeListener;
 import java.io.File;
 import java.lang.reflect.Field;
 import java.util.Locale;
+import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 
 import org.apache.commons.lang3.ArchUtils;
 import org.apache.commons.lang3.BooleanUtils;
 import org.apache.commons.lang3.SystemUtils;
 import org.apache.commons.lang3.arch.Processor;
+import org.apache.commons.lang3.concurrent.ConcurrentException;
 import org.apache.commons.lang3.concurrent.ConcurrentRuntimeException;
 import org.apache.commons.lang3.concurrent.ConcurrentUtils;
 import org.apache.commons.lang3.event.EventUtils;
@@ -97,22 +100,37 @@ public class Lang3UtilsTest {
     public void testAddEventListenerThrowsException() {
         final ExceptionEventSource src = new ExceptionEventSource();
         try {
-            EventUtils.addEventListener(src, PropertyChangeListener.class, new PropertyChangeListener() {
-                @Override
-                public void propertyChange(final PropertyChangeEvent e) {
-                    // Do nothing!
-                }
-            });
+            EventUtils.addEventListener(src, PropertyChangeListener.class, (PropertyChangeEvent e) -> {
+                /* Change event*/});
             fail("Add method should have thrown an exception, so method should fail.");
         } catch (final RuntimeException e) {
 
         }
     }
 
+    @Test
+    public void ConcurrentExceptionSample() throws ConcurrentException {
+        final Error err = new AssertionError("Test");
+        try {
+            ConcurrentUtils.handleCause(new ExecutionException(err));
+            fail("Error not thrown!");
+        } catch (final Error e) {
+            assertEquals("Wrong error", err, e);
+        }
+    }
+
     public static class ExceptionEventSource {
         public void addPropertyChangeListener(final PropertyChangeListener listener) {
             throw new RuntimeException();
         }
     }
 
+    @Test
+    public void testLazyInitializer() throws Exception {
+        SampleLazyInitializer sampleLazyInitializer = new SampleLazyInitializer();
+        SampleObject sampleObjectOne = sampleLazyInitializer.get();
+        SampleObject sampleObjectTwo = sampleLazyInitializer.get();
+        assertEquals(sampleObjectOne, sampleObjectTwo);
+    }
+
 }

libraries/src/test/java/com/baeldung/fj/FunctionalJavaTest.java

@@ -0,0 +1,79 @@
+package com.baeldung.fj;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import fj.F;
+import fj.data.Array;
+import fj.data.List;
+import fj.data.Option;
+import fj.function.Characters;
+import fj.function.Integers;
+
+public class FunctionalJavaTest {
+	
+	public static final F<Integer, Boolean> isEven = i -> i % 2 == 0;
+	
+    @Test
+    public void calculateEvenNumbers_givenIntList_returnTrue() {
+    	List<Integer> fList = List.list(3, 4, 5, 6);
+        List<Boolean> evenList = fList.map(isEven);
+        List<Boolean> evenListTrueResult = List.list(false, true, false, true);
+        List<Boolean> evenListFalseResult = List.list(true, false, false, true);
+        assertEquals(evenList.equals(evenListTrueResult), true);
+        assertEquals(evenList.equals(evenListFalseResult), false);
+    }
+    
+    @Test
+    public void mapList_givenIntList_returnResult() {
+    	List<Integer> fList = List.list(3, 4, 5, 6);
+    	fList = fList.map(i -> i + 100);
+    	List<Integer> resultList = List.list(103, 104, 105, 106);
+    	List<Integer> falseResultList = List.list(15, 504, 105, 106);
+    	assertEquals(fList.equals(resultList), true);
+    	assertEquals(fList.equals(falseResultList), false);
+    }
+    
+    @Test
+    public void filterList_givenIntList_returnResult() {
+    	Array<Integer> array = Array.array(3, 4, 5, 6);
+    	Array<Integer> filteredArray = array.filter(Integers.even);
+    	Array<Integer> result = Array.array(4, 6);
+    	Array<Integer> wrongResult = Array.array(3, 5);
+    	assertEquals(filteredArray.equals(result), true);
+    	assertEquals(filteredArray.equals(wrongResult), false);
+    }
+    
+    @Test
+    public void checkForLowerCase_givenStringArray_returnResult() {
+    	Array<String> array = Array.array("Welcome", "To", "baeldung");
+    	Array<String> array2 = Array.array("Welcome", "To", "Baeldung");
+        Boolean isExist = array.exists(s -> List.fromString(s).forall(Characters.isLowerCase));
+        Boolean isExist2 = array2.exists(s -> List.fromString(s).forall(Characters.isLowerCase));
+        assertEquals(isExist, true);
+        assertEquals(isExist2, false);
+    }
+   
+    @Test
+    public void checkOptions_givenOptions_returnResult() {
+        Option<Integer> n1 = Option.some(1);
+        Option<Integer> n2 = Option.some(2);
+
+        F<Integer, Option<Integer>> f1 = i -> i % 2 == 0 ? Option.some(i + 100) : Option.none();
+
+        Option<Integer> result1 = n1.bind(f1);
+        Option<Integer> result2 = n2.bind(f1);
+        
+        assertEquals(result1, Option.none());
+        assertEquals(result2, Option.some(102));
+    }
+    
+    @Test
+    public void foldLeft_givenArray_returnResult() {
+        Array<Integer> intArray = Array.array(17, 44, 67, 2, 22, 80, 1, 27);
+        int sum = intArray.foldLeft(Integers.add, 0);
+        assertEquals(sum, 260);
+    }
+    
+}

libraries/src/test/java/com/baeldung/jcache/CacheLoaderTest.java

@@ -9,11 +9,14 @@ import javax.cache.configuration.FactoryBuilder;
 import javax.cache.configuration.MutableConfiguration;
 import javax.cache.spi.CachingProvider;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
 public class CacheLoaderTest {
 
+    private static final String CACHE_NAME = "SimpleCache";
+
     private Cache<Integer, String> cache;
 
     @Before
@@ -25,6 +28,12 @@ public class CacheLoaderTest {
         this.cache = cacheManager.createCache("SimpleCache", config);
     }
 
+    @After
+    public void tearDown() {
+        Caching.getCachingProvider()
+          .getCacheManager().destroyCache(CACHE_NAME);
+    }
+
     @Test
     public void whenReadingFromStorage_thenCorrect() {
         for (int i = 1; i < 4; i++) {
@@ -32,4 +41,4 @@ public class CacheLoaderTest {
             assertEquals("fromCache" + i, value);
         }
     }
-}
+}

libraries/src/test/java/com/baeldung/jcache/EntryProcessorTest.java

@@ -1,6 +1,8 @@
 package com.baeldung.jcache;
 
-import static org.junit.Assert.assertEquals;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
 
 import javax.cache.Cache;
 import javax.cache.CacheManager;
@@ -8,25 +10,32 @@ import javax.cache.Caching;
 import javax.cache.configuration.MutableConfiguration;
 import javax.cache.spi.CachingProvider;
 
-import org.junit.Before;
-import org.junit.Test;
+import static org.junit.Assert.assertEquals;
 
 public class EntryProcessorTest {
 
+    private static final String CACHE_NAME = "MyCache";
+
     private Cache<String, String> cache;
 
     @Before
     public void instantiateCache() {
         CachingProvider cachingProvider = Caching.getCachingProvider();
         CacheManager cacheManager = cachingProvider.getCacheManager();
-        MutableConfiguration<String, String> config = new MutableConfiguration<String, String>();
-        this.cache = cacheManager.createCache("MyCache", config);
+        MutableConfiguration<String, String> config = new MutableConfiguration<>();
+        this.cache = cacheManager.createCache(CACHE_NAME, config);
         this.cache.put("key", "value");
     }
 
+    @After
+    public void tearDown() {
+        Caching.getCachingProvider()
+          .getCacheManager().destroyCache(CACHE_NAME);
+    }
+
     @Test
     public void whenModifyValue_thenCorrect() {
         this.cache.invoke("key", new SimpleEntryProcessor());
         assertEquals("value - modified", cache.get("key"));
     }
-}
+}

libraries/src/test/java/com/baeldung/jcache/EventListenerTest.java

@@ -1,6 +1,8 @@
 package com.baeldung.jcache;
 
-import static org.junit.Assert.assertEquals;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
 
 import javax.cache.Cache;
 import javax.cache.CacheManager;
@@ -10,14 +12,15 @@ import javax.cache.configuration.MutableCacheEntryListenerConfiguration;
 import javax.cache.configuration.MutableConfiguration;
 import javax.cache.spi.CachingProvider;
 
-import org.junit.Before;
-import org.junit.Test;
+import static org.junit.Assert.assertEquals;
 
 public class EventListenerTest {
 
+    private static final String CACHE_NAME = "MyCache";
+
     private Cache<String, String> cache;
     private SimpleCacheEntryListener listener;
-    MutableCacheEntryListenerConfiguration<String, String> listenerConfiguration;
+    private MutableCacheEntryListenerConfiguration<String, String> listenerConfiguration;
 
     @Before
     public void setup() {
@@ -28,9 +31,16 @@ public class EventListenerTest {
         this.listener = new SimpleCacheEntryListener();
     }
 
+    @After
+    public void tearDown() {
+        Caching.getCachingProvider()
+          .getCacheManager().destroyCache(CACHE_NAME);
+    }
+
     @Test
     public void whenRunEvent_thenCorrect() throws InterruptedException {
-        this.listenerConfiguration = new MutableCacheEntryListenerConfiguration<String, String>(FactoryBuilder.factoryOf(this.listener), null, false, true);
+        this.listenerConfiguration = new MutableCacheEntryListenerConfiguration<>(FactoryBuilder
+          .factoryOf(this.listener), null, false, true);
         this.cache.registerCacheEntryListener(this.listenerConfiguration);
 
         assertEquals(false, this.listener.getCreated());
@@ -42,4 +52,5 @@ public class EventListenerTest {
         this.cache.put("key", "newValue");
         assertEquals(true, this.listener.getUpdated());
     }
-}
+
+}

libraries/src/test/java/com/baeldung/jcache/JCacheTest.java

@@ -1,6 +1,6 @@
 package com.baeldung.jcache;
 
-import static org.junit.Assert.assertEquals;
+import org.junit.Test;
 
 import javax.cache.Cache;
 import javax.cache.CacheManager;
@@ -8,7 +8,7 @@ import javax.cache.Caching;
 import javax.cache.configuration.MutableConfiguration;
 import javax.cache.spi.CachingProvider;
 
-import org.junit.Test;
+import static org.junit.Assert.assertEquals;
 
 public class JCacheTest {
 
@@ -24,4 +24,4 @@ public class JCacheTest {
         assertEquals("value2", cache.get("key2"));
         cacheManager.close();
     }
-}
+}

libraries/src/test/java/com/baeldung/retrofit/basic/GitHubBasicApiLiveTest.java

@@ -16,7 +16,7 @@ import com.baeldung.retrofit.models.Repository;
 import retrofit2.Retrofit;
 import retrofit2.converter.gson.GsonConverterFactory;
 
-public class GitHubBasicApiTest {
+public class GitHubBasicApiLiveTest {
     
     GitHubBasicApi gitHub;
     

log4j2/README.md

@@ -1,3 +1,4 @@
 ### Relevant articles
 
 - [Intro to Log4j2 – Appenders, Layouts and Filters](http://www.baeldung.com/log4j2-appenders-layouts-filters)
+- [Log4j 2 and Lambda Expressions](http://www.baeldung.com/log4j-2-lazy-logging)

mustache/src/main/java/com/baeldung/springmustache/controller/ArticleController.java

@@ -22,10 +22,9 @@ public class ArticleController {
           .mapToObj(i -> generateArticle("Article Title " + i))
           .collect(Collectors.toList());
 
-        Map<String, Object> modelMap = new HashMap<>();
-        modelMap.put("articles", articles);
+        model.put("articles", articles);
 
-        return new ModelAndView("index", modelMap);
+        return new ModelAndView("index", model);
     }
 
     private Article generateArticle(String title) {

pom.xml

@@ -57,7 +57,7 @@
 
         <!-- <module>gatling</module> --> <!-- not meant to run as part of the standard build -->
 
-
+        <module>geotools</module>
         <module>groovy-spock</module>
         <module>gson</module>
         <module>guava</module>

ratpack/README.md

@@ -3,3 +3,5 @@
 - [Introduction to Ratpack](http://www.baeldung.com/ratpack)
 - [Ratpack Google Guice Integration](http://www.baeldung.com/ratpack-google-guice)
 - [Ratpack Integration with Spring Boot](http://www.baeldung.com/ratpack-spring-boot)
+- [Ratpack with Hystrix](http://www.baeldung.com/ratpack-hystrix)
+

rxjava/README.md

@@ -2,3 +2,4 @@
 
 - [Dealing with Backpressure with RxJava](http://www.baeldung.com/rxjava-backpressure)
 - [How to Test RxJava?](http://www.baeldung.com/rxjava-testing)
+- [Implementing Custom Operators in RxJava](http://www.baeldung.com/rxjava-custom-operators)

rxjava/pom.xml

@@ -19,6 +19,18 @@
             <artifactId>rxjava</artifactId>
             <version>${rx.java.version}</version>
         </dependency>
+
+        <dependency>
+            <groupId>io.reactivex.rxjava2</groupId>
+            <artifactId>rxjava</artifactId>
+            <version>2.1.3</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.jayway.awaitility</groupId>
+            <artifactId>awaitility</artifactId>
+            <version>1.7.0</version>
+        </dependency>
     </dependencies>
 
     <properties>

rxjava/src/main/java/com/baelding/rxjava/ConnectableObservableImpl.java

@@ -9,7 +9,8 @@ public class ConnectableObservableImpl {
 
     public static void main(String[] args) throws InterruptedException {
 
-        ConnectableObservable<Long> connectable = Observable.interval(200, TimeUnit.MILLISECONDS).publish();
+        ConnectableObservable<Long> connectable
+          = Observable.interval(200, TimeUnit.MILLISECONDS).publish();
         connectable.subscribe(System.out::println);
 
         System.out.println("Connect");

rxjava/src/main/java/com/baelding/rxjava/ObservableImpl.java

@@ -3,12 +3,22 @@ package com.baelding.rxjava;
 import rx.Observable;
 import rx.observables.BlockingObservable;
 
+import java.util.Arrays;
+import java.util.List;
+
 public class ObservableImpl {
 
-    public static void main(String[] args) {
+    static Integer[] numbers = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
 
-        Integer[] numbers = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
-        String[] letters = {"a", "b", "c", "d", "e", "f", "g"};
+    static String[] letters = {"a", "b", "c", "d", "e", "f", "g", "h", "i"};
+    static String[] titles = {"title"};
+    public static List<String> titleList = Arrays.asList(titles);
+
+    public static Observable<String> getTitle() {
+        return Observable.from(titleList);
+    }
+
+    public static void main(String[] args) {
 
         System.out.println("-------Just-----------");
         Observable<String> observable = Observable.just("Hello");
@@ -28,14 +38,9 @@ public class ObservableImpl {
 
         System.out.println();
         System.out.println("-------FlatMap-----------");
-        Observable.from(letters)
-          .flatMap((letter) -> {
-              String[] returnStrings = {letter.toUpperCase(), letter.toLowerCase()};
-              return Observable.from(returnStrings);
-          })
-          .subscribe(
-            System.out::print
-          );
+        Observable.just("book1", "book2")
+          .flatMap(s -> getTitle())
+          .subscribe(System.out::print);
 
         System.out.println();
         System.out.println("--------Scan----------");
@@ -55,16 +60,12 @@ public class ObservableImpl {
         System.out.println("-------Filter-----------");
         Observable.from(numbers)
           .filter(i -> (i % 2 == 1))
-          .subscribe(
-            System.out::println
-          );
+          .subscribe(System.out::println);
 
         System.out.println("------DefaultIfEmpty------------");
         Observable.empty()
           .defaultIfEmpty("Observable is empty")
-          .subscribe(
-            System.out::println
-          );
+          .subscribe(System.out::println);
 
         System.out.println("------DefaultIfEmpty-2-----------");
         Observable.from(letters)

rxjava/src/main/java/com/baelding/rxjava/ResourceManagement.java

@@ -13,8 +13,9 @@ public class ResourceManagement {
               return resource;
           },
           r -> Observable.create(o -> {
-              for (Character c : r.toCharArray())
+              for (Character c : r.toCharArray()) {
                   o.onNext(c);
+              }
               o.onCompleted();
           }),
           r -> System.out.println("Disposed: " + r)

rxjava/src/main/java/com/baelding/rxjava/SubjectImpl.java

@@ -1,69 +1,73 @@
 package com.baelding.rxjava;
 
-import rx.Observable;
-import rx.schedulers.Schedulers;
+import rx.Observer;
 import rx.subjects.PublishSubject;
 
 public class SubjectImpl {
 
-    public static final String[] subscriber1 = {""};
-    public static final String[] subscriber2 = {""};
+    public static Integer subscriber1 = 0;
+    public static Integer subscriber2 = 0;
 
-    public static String subjectMethod() throws InterruptedException {
+    public static Integer subjectMethod() {
+        PublishSubject<Integer> subject = PublishSubject.create();
 
-        String[] letters = {"a", "b", "c", "d", "e", "f", "g"};
-        Long signal = 500L;
-        PublishSubject<String> subject;
+        subject.subscribe(getFirstObserver());
 
-        synchronized (signal) {
-            subject = PublishSubject.create();
-            subject.subscribe(
-              (letter) -> {
-                  subscriber1[0] += letter;
-                  System.out.println("Subscriber 1: " + subscriber1[0]);
-                  try {
-                      Thread.sleep(500);
-                  } catch (InterruptedException e) {
-                      e.printStackTrace();
-                  }
-                  if (letter.equals("c")) {
-                      synchronized (signal) {
-                          signal.notify();
-                      }
-                  }
-              }
-            );
-        }
+        subject.onNext(1);
+        subject.onNext(2);
+        subject.onNext(3);
 
-        Observable.from(letters)
-          .subscribeOn(Schedulers.computation())
-          .subscribe(
-            subject::onNext,
-            subject::onError,
-            () -> {
-                System.out.println("Subscriber 1 completed ");
-                subject.onCompleted();
-                synchronized (signal) {
-                    signal.notify();
-                }
+        subject.subscribe(getSecondObserver());
+
+        subject.onNext(4);
+        subject.onCompleted();
+        return subscriber1 + subscriber2;
+    }
+
+
+    public static Observer<Integer> getFirstObserver() {
+        return new Observer<Integer>() {
+
+            @Override
+            public void onNext(Integer value) {
+                subscriber1 += value;
+                System.out.println("Subscriber1: " + value);
             }
-          );
 
-        synchronized (signal) {
-            signal.wait();
-            subject.subscribe(
-              (letter) -> {
-                  subscriber2[0] += letter;
-                  System.out.println("Subscriber 2: " + subscriber2[0]);
-              },
-              subject::onError,
-              () -> System.out.println("Subscriber 2 completed ")
-            );
-        }
+            @Override
+            public void onError(Throwable e) {
+                System.out.println("error");
+            }
 
-        synchronized (signal) {
-            signal.wait();
-            return subscriber1[0] + subscriber2[0];
-        }
+            @Override
+            public void onCompleted() {
+                System.out.println("Subscriber1 completed");
+            }
+        };
+    }
+
+    public static Observer<Integer> getSecondObserver() {
+        return new Observer<Integer>() {
+
+            @Override
+            public void onNext(Integer value) {
+                subscriber2 += value;
+                System.out.println("Subscriber2: " + value);
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                System.out.println("error");
+            }
+
+            @Override
+            public void onCompleted() {
+                System.out.println("Subscriber2 completed");
+            }
+        };
+    }
+
+    public static void main(String[] args) throws InterruptedException {
+        System.out.println(subjectMethod());
     }
 }

rxjava/src/test/java/com/baeldung/rxjava/ConnectableObservableTest.java

@@ -6,6 +6,7 @@ import rx.observables.ConnectableObservable;
 
 import java.util.concurrent.TimeUnit;
 
+import static com.jayway.awaitility.Awaitility.await;
 import static junit.framework.Assert.assertFalse;
 import static junit.framework.Assert.assertTrue;
 
@@ -13,15 +14,14 @@ public class ConnectableObservableTest {
 
     @Test
     public void givenConnectableObservable_whenConnect_thenGetMessage() throws InterruptedException {
-        final String[] result = {""};
-        ConnectableObservable<Long> connectable = Observable.interval(200, TimeUnit.MILLISECONDS).publish();
+        String[] result = {""};
+        ConnectableObservable<Long> connectable
+          = Observable.interval(500, TimeUnit.MILLISECONDS).publish();
         connectable.subscribe(i -> result[0] += i);
-
         assertFalse(result[0].equals("01"));
 
         connectable.connect();
-        Thread.currentThread().sleep(500);
-
-        assertTrue(result[0].equals("01"));
+        await()
+          .until(() -> assertTrue(result[0].equals("01")));
     }
 }

rxjava/src/test/java/com/baeldung/rxjava/ObservableTest.java

@@ -2,10 +2,8 @@ package com.baeldung.rxjava;
 
 import org.junit.Test;
 import rx.Observable;
-import rx.observables.ConnectableObservable;
-
-import java.util.concurrent.TimeUnit;
 
+import static com.baelding.rxjava.ObservableImpl.getTitle;
 import static junit.framework.Assert.assertTrue;
 
 public class ObservableTest {
@@ -24,41 +22,23 @@ public class ObservableTest {
         String[] letters = {"a", "b", "c", "d", "e", "f", "g"};
         Observable<String> observable = Observable.from(letters);
         observable.subscribe(
-                //onNext
-                (i) -> {
-                    result += i;
-                },
-                //onError
-                (t) -> {
-                    t.printStackTrace();
-                },
-                //onCompleted
-                () -> {
-                    result += "Complete";
-                }
+          i -> result += i,
+          Throwable::printStackTrace,
+          () -> result += "_Complete"
         );
-        assertTrue(result.equals("abcdefgComplete"));
+        assertTrue(result.equals("abcdefg_Complete"));
     }
 
-     @Test
+    @Test
     public void givenArray_whenConvertsObservabletoBlockingObservable_thenReturnFirstElement() {
         String[] letters = {"a", "b", "c", "d", "e", "f", "g"};
         Observable<String> observable = Observable.from(letters);
         String blockingObservable = observable.toBlocking().first();
 
         observable.subscribe(
-                //onNext
-                (i) -> {
-                    result += i;
-                },
-                //onError
-                (t) -> {
-                    t.printStackTrace();
-                },
-                //onCompleted
-                () -> {
-                    result += "Complete";
-                }
+          i -> result += i,
+          Throwable::printStackTrace,
+          () -> result += "_Completed"
         );
         assertTrue(String.valueOf(result.charAt(0)).equals(blockingObservable));
     }
@@ -68,45 +48,31 @@ public class ObservableTest {
         String[] letters = {"a", "b", "c", "d", "e", "f", "g"};
 
         Observable.from(letters)
-                .map((letter) -> {
-                    return letter.toUpperCase();
-                })
-                .subscribe((letter) -> {
-                    result += letter;
-                });
+          .map(String::toUpperCase)
+          .subscribe(letter -> result += letter);
 
         assertTrue(result.equals("ABCDEFG"));
     }
 
     @Test
     public void givenArray_whenFlatMapAndSubscribe_thenReturnUpperAndLowerCaseLetters() {
-        String[] letters = {"a", "b", "c", "d", "e", "f", "g"};
 
-        Observable.from(letters)
-                .flatMap((letter) -> {
-                    String[] returnStrings = {letter.toUpperCase(), letter.toLowerCase()};
-                    return Observable.from(returnStrings);
-                })
-                .subscribe((letter) -> {
-                    result += letter;
-                });
+        Observable.just("book1", "book2")
+          .flatMap(s -> getTitle())
+          .subscribe(l -> result += l);
 
-        assertTrue(result.equals("AaBbCcDdEeFfGg"));
+        assertTrue(result.equals("titletitle"));
     }
 
     @Test
     public void givenArray_whenScanAndSubscribe_thenReturnTheSumOfAllLetters() {
-        String[] letters = {"a", "b", "c", "d", "e", "f", "g"};
+        String[] letters = {"a", "b", "c"};
 
         Observable.from(letters)
-                .scan(new StringBuilder(), (buffer, nextLetter) -> {
-                    return buffer.append(nextLetter);
-                })
-                .subscribe((total) -> {
-                    result = total.toString();
-                });
+          .scan(new StringBuilder(), StringBuilder::append)
+          .subscribe(total -> result += total.toString());
 
-        assertTrue(result.equals("abcdefg"));
+        assertTrue(result.equals("aababc"));
     }
 
     @Test
@@ -116,18 +82,16 @@ public class ObservableTest {
         String[] ODD = {""};
 
         Observable.from(numbers)
-                .groupBy((i) -> {
-                    return 0 == (i % 2) ? "EVEN" : "ODD";
-                })
-                .subscribe((group) -> {
-                    group.subscribe((number) -> {
-                        if (group.getKey().toString().equals("EVEN")) {
-                            EVEN[0] += number;
-                        } else {
-                            ODD[0] += number;
-                        }
-                    });
-                });
+          .groupBy(i -> 0 == (i % 2) ? "EVEN" : "ODD")
+          .subscribe(group ->
+            group.subscribe((number) -> {
+                if (group.getKey().toString().equals("EVEN")) {
+                    EVEN[0] += number;
+                } else {
+                    ODD[0] += number;
+                }
+            })
+          );
 
         assertTrue(EVEN[0].equals("0246810"));
         assertTrue(ODD[0].equals("13579"));
@@ -138,12 +102,8 @@ public class ObservableTest {
         Integer[] numbers = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
 
         Observable.from(numbers)
-                .filter((i) -> {
-                    return (i % 2 == 1);
-                })
-                .subscribe((i) -> {
-                    result += i;
-                });
+          .filter(i -> (i % 2 == 1))
+          .subscribe(i -> result += i);
 
         assertTrue(result.equals("13579"));
     }
@@ -152,10 +112,8 @@ public class ObservableTest {
     public void givenEmptyObservable_whenDefaultIfEmpty_thenGetDefaultMessage() {
 
         Observable.empty()
-                .defaultIfEmpty("Observable is empty")
-                .subscribe((s) -> {
-                    result += s;
-                });
+          .defaultIfEmpty("Observable is empty")
+          .subscribe(s -> result += s);
 
         assertTrue(result.equals("Observable is empty"));
     }
@@ -165,11 +123,9 @@ public class ObservableTest {
         String[] letters = {"a", "b", "c", "d", "e", "f", "g"};
 
         Observable.from(letters)
-                .defaultIfEmpty("Observable is empty")
-                .first()
-                .subscribe((s) -> {
-                    result += s;
-                });
+          .defaultIfEmpty("Observable is empty")
+          .first()
+          .subscribe(s -> result += s);
 
         assertTrue(result.equals("a"));
     }
@@ -180,12 +136,8 @@ public class ObservableTest {
         final Integer[] sum = {0};
 
         Observable.from(numbers)
-                .takeWhile((i) -> {
-                    return i < 5;
-                })
-                .subscribe((s) -> {
-                    sum[0] += s;
-                });
+          .takeWhile(i -> i < 5)
+          .subscribe(s -> sum[0] += s);
 
         assertTrue(sum[0] == 10);
     }

rxjava/src/test/java/com/baeldung/rxjava/ResourceManagementTest.java

@@ -10,32 +10,25 @@ public class ResourceManagementTest {
     @Test
     public void givenResource_whenUsingOberservable_thenCreatePrintDisposeResource() throws InterruptedException {
 
-        final String[] result = {""};
-
+        String[] result = {""};
         Observable<Character> values = Observable.using(
-                //a factory function that creates a disposable resource
-                () -> {
-                    String resource = "MyResource";
-                    return resource;
-                },
-                //a factory function that creates an Observable
-                (resource) -> {
-                    return Observable.create(o -> {
-                        for (Character c : resource.toCharArray())
-                            o.onNext(c);
-                        o.onCompleted();
-                    });
-                },
-                //a function that disposes of the resource
-                (resource) -> System.out.println("Disposed: " + resource)
+          () -> {
+              return "MyResource";
+          },
+          r -> {
+              return Observable.create(o -> {
+                  for (Character c : r.toCharArray())
+                      o.onNext(c);
+                  o.onCompleted();
+              });
+          },
+          r -> System.out.println("Disposed: " + r)
         );
 
         values.subscribe(
-                v -> result[0] += v,
-                e -> result[0] += e
+          v -> result[0] += v,
+          e -> result[0] += e
         );
-
         assertTrue(result[0].equals("MyResource"));
-
     }
 }

rxjava/src/test/java/com/baeldung/rxjava/SingleTest.java

@@ -10,19 +10,15 @@ public class SingleTest {
 
     @Test
     public void givenSingleObservable_whenSuccess_thenGetMessage() throws InterruptedException {
-        final String[] result = {""};
-        Single<String> single = Observable.just("Hello").toSingle()
-                .doOnSuccess(
-                        (i) -> {
-                            result[0] += i;
-                        })
-                .doOnError(
-                        (error) -> {
-                            throw new RuntimeException(error.getMessage());
-                        });
+        String[] result = {""};
+        Single<String> single = Observable.just("Hello")
+          .toSingle()
+          .doOnSuccess(i -> result[0] += i)
+          .doOnError(error -> {
+              throw new RuntimeException(error.getMessage());
+          });
         single.subscribe();
-
         assertTrue(result[0].equals("Hello"));
     }
 
-  }
+}

rxjava/src/test/java/com/baeldung/rxjava/SubjectTest.java

@@ -2,16 +2,25 @@ package com.baeldung.rxjava;
 
 import com.baelding.rxjava.SubjectImpl;
 import org.junit.Test;
+import rx.subjects.PublishSubject;
 
 import static junit.framework.Assert.assertTrue;
 
 public class SubjectTest {
 
     @Test
-    public void givenSubjectAndTwoSubscribers_whenSubscribeOnSubjectAfterLetterC_thenSecondSubscriberBeginsToPrint() throws InterruptedException {
-        String result = SubjectImpl.subjectMethod();
-        String subscribers = SubjectImpl.subscriber1[0] + SubjectImpl.subscriber2[0];
+    public void givenSubjectAndTwoSubscribers_whenSubscribeOnSubject_thenSubscriberBeginsToAdd(){
+        PublishSubject<Integer> subject = PublishSubject.create();
 
-        assertTrue(subscribers.equals(result));
+        subject.subscribe(SubjectImpl.getFirstObserver());
+        subject.onNext(1);
+        subject.onNext(2);
+        subject.onNext(3);
+
+        subject.subscribe(SubjectImpl.getSecondObserver());
+        subject.onNext(4);
+        subject.onCompleted();
+
+        assertTrue(SubjectImpl.subscriber1 + SubjectImpl.subscriber2 == 14);
     }
 }

rxjava/src/test/java/com/baeldung/rxjava/onerror/ExceptionHandlingTest.java

@@ -0,0 +1,141 @@
+package com.baeldung.rxjava.onerror;
+
+import io.reactivex.Observable;
+import io.reactivex.exceptions.CompositeException;
+import io.reactivex.observers.TestObserver;
+import org.junit.Test;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import static org.junit.Assert.assertTrue;
+
+/**
+ * @author aiet
+ */
+public class ExceptionHandlingTest {
+
+    private Error UNKNOWN_ERROR = new Error("unknown error");
+    private Exception UNKNOWN_EXCEPTION = new Exception("unknown exception");
+
+    @Test
+    public void givenSubscriberAndError_whenHandleOnErrorReturn_thenResumed() {
+        TestObserver testObserver = new TestObserver();
+
+        Observable
+          .error(UNKNOWN_ERROR)
+          .onErrorReturn(Throwable::getMessage)
+          .subscribe(testObserver);
+
+        testObserver.assertNoErrors();
+        testObserver.assertComplete();
+        testObserver.assertValueCount(1);
+        testObserver.assertValue("unknown error");
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenHandleOnErrorResume_thenResumed() {
+        TestObserver testObserver = new TestObserver();
+
+        Observable
+          .error(UNKNOWN_ERROR)
+          .onErrorResumeNext(Observable.just("one", "two"))
+          .subscribe(testObserver);
+
+        testObserver.assertNoErrors();
+        testObserver.assertComplete();
+        testObserver.assertValueCount(2);
+        testObserver.assertValues("one", "two");
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenHandleOnErrorResumeItem_thenResumed() {
+        TestObserver testObserver = new TestObserver();
+
+        Observable
+          .error(UNKNOWN_ERROR)
+          .onErrorReturnItem("singleValue")
+          .subscribe(testObserver);
+
+        testObserver.assertNoErrors();
+        testObserver.assertComplete();
+        testObserver.assertValueCount(1);
+        testObserver.assertValue("singleValue");
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenHandleOnErrorResumeFunc_thenResumed() {
+        TestObserver testObserver = new TestObserver();
+
+        Observable
+          .error(UNKNOWN_ERROR)
+          .onErrorResumeNext(throwable -> {
+              return Observable.just(throwable.getMessage(), "nextValue");
+          })
+          .subscribe(testObserver);
+
+        testObserver.assertNoErrors();
+        testObserver.assertComplete();
+        testObserver.assertValueCount(2);
+        testObserver.assertValues("unknown error", "nextValue");
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenChangeStateOnError_thenErrorThrown() {
+        TestObserver testObserver = new TestObserver();
+        final AtomicBoolean state = new AtomicBoolean(false);
+
+        Observable
+          .error(UNKNOWN_ERROR)
+          .doOnError(throwable -> state.set(true))
+          .subscribe(testObserver);
+
+        testObserver.assertError(UNKNOWN_ERROR);
+        testObserver.assertNotComplete();
+        testObserver.assertNoValues();
+        assertTrue("state should be changed", state.get());
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenExceptionOccurOnError_thenCompositeExceptionThrown() {
+        TestObserver testObserver = new TestObserver();
+
+        Observable
+          .error(UNKNOWN_ERROR)
+          .doOnError(throwable -> {
+              throw new RuntimeException("unexcepted");
+          })
+          .subscribe(testObserver);
+
+        testObserver.assertError(CompositeException.class);
+        testObserver.assertNotComplete();
+        testObserver.assertNoValues();
+    }
+
+    @Test
+    public void givenSubscriberAndException_whenHandleOnException_thenResumed() {
+        TestObserver testObserver = new TestObserver();
+
+        Observable
+          .error(UNKNOWN_EXCEPTION)
+          .onExceptionResumeNext(Observable.just("exceptionResumed"))
+          .subscribe(testObserver);
+
+        testObserver.assertNoErrors();
+        testObserver.assertComplete();
+        testObserver.assertValueCount(1);
+        testObserver.assertValue("exceptionResumed");
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenHandleOnException_thenNotResumed() {
+        TestObserver testObserver = new TestObserver();
+        Observable
+          .error(UNKNOWN_ERROR)
+          .onExceptionResumeNext(Observable.just("exceptionResumed"))
+          .subscribe(testObserver);
+
+        testObserver.assertError(UNKNOWN_ERROR);
+        testObserver.assertNotComplete();
+    }
+
+}

rxjava/src/test/java/com/baeldung/rxjava/onerror/OnErrorRetryTest.java

@@ -0,0 +1,149 @@
+package com.baeldung.rxjava.onerror;
+
+import io.reactivex.Observable;
+import io.reactivex.observers.TestObserver;
+import org.junit.Test;
+
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import static org.junit.Assert.assertTrue;
+
+/**
+ * @author aiet
+ */
+public class OnErrorRetryTest {
+
+    private Error UNKNOWN_ERROR = new Error("unknown error");
+
+    @Test
+    public void givenSubscriberAndError_whenRetryOnError_thenRetryConfirmed() {
+        TestObserver testObserver = new TestObserver();
+        AtomicInteger atomicCounter = new AtomicInteger(0);
+
+        Observable
+          .error(() -> {
+              atomicCounter.incrementAndGet();
+              return UNKNOWN_ERROR;
+          })
+          .retry(1)
+          .subscribe(testObserver);
+
+        testObserver.assertError(UNKNOWN_ERROR);
+        testObserver.assertNotComplete();
+        testObserver.assertNoValues();
+        assertTrue("should call twice", atomicCounter.get() == 2);
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenRetryConditionallyOnError_thenRetryConfirmed() {
+        TestObserver testObserver = new TestObserver();
+
+        AtomicInteger atomicCounter = new AtomicInteger(0);
+
+        Observable
+          .error(() -> {
+              atomicCounter.incrementAndGet();
+              return UNKNOWN_ERROR;
+          })
+          .retry((integer, throwable) -> integer < 4)
+          .subscribe(testObserver);
+
+        testObserver.assertError(UNKNOWN_ERROR);
+        testObserver.assertNotComplete();
+        testObserver.assertNoValues();
+        assertTrue("should call 4 times", atomicCounter.get() == 4);
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenRetryUntilOnError_thenRetryConfirmed() {
+        TestObserver testObserver = new TestObserver();
+        AtomicInteger atomicCounter = new AtomicInteger(0);
+
+        Observable
+          .error(UNKNOWN_ERROR)
+          .retryUntil(() -> atomicCounter.incrementAndGet() > 3)
+          .subscribe(testObserver);
+
+        testObserver.assertError(UNKNOWN_ERROR);
+        testObserver.assertNotComplete();
+        testObserver.assertNoValues();
+        assertTrue("should call 4 times", atomicCounter.get() == 4);
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenRetryWhenOnError_thenRetryConfirmed() {
+        TestObserver testObserver = new TestObserver();
+        Exception noretryException = new Exception("don't retry");
+
+        Observable
+          .error(UNKNOWN_ERROR)
+          .retryWhen(throwableObservable -> Observable.error(noretryException))
+          .subscribe(testObserver);
+
+        testObserver.assertError(noretryException);
+        testObserver.assertNotComplete();
+        testObserver.assertNoValues();
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenRetryWhenOnError_thenCompleted() {
+        TestObserver testObserver = new TestObserver();
+        AtomicInteger atomicCounter = new AtomicInteger(0);
+
+        Observable
+          .error(() -> {
+              atomicCounter.incrementAndGet();
+              return UNKNOWN_ERROR;
+          })
+          .retryWhen(throwableObservable -> Observable.empty())
+          .subscribe(testObserver);
+
+        testObserver.assertNoErrors();
+        testObserver.assertComplete();
+        testObserver.assertNoValues();
+        assertTrue("should not retry", atomicCounter.get() == 0);
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenRetryWhenOnError_thenResubscribed() {
+        TestObserver testObserver = new TestObserver();
+        AtomicInteger atomicCounter = new AtomicInteger(0);
+
+        Observable
+          .error(() -> {
+              atomicCounter.incrementAndGet();
+              return UNKNOWN_ERROR;
+          })
+          .retryWhen(throwableObservable -> Observable.just("anything"))
+          .subscribe(testObserver);
+
+        testObserver.assertNoErrors();
+        testObserver.assertComplete();
+        testObserver.assertNoValues();
+        assertTrue("should retry once", atomicCounter.get() == 1);
+    }
+
+    @Test
+    public void givenSubscriberAndError_whenRetryWhenForMultipleTimesOnError_thenResumed() {
+        TestObserver testObserver = new TestObserver();
+        long before = System.currentTimeMillis();
+
+        Observable
+          .error(UNKNOWN_ERROR)
+          .retryWhen(throwableObservable -> throwableObservable
+            .zipWith(Observable.range(1, 3), (throwable, integer) -> integer)
+            .flatMap(integer -> {
+                System.out.println("retried " + integer + " times");
+                return Observable.timer(integer, TimeUnit.SECONDS);
+            }))
+          .blockingSubscribe(testObserver);
+
+        testObserver.assertNoErrors();
+        testObserver.assertComplete();
+        testObserver.assertNoValues();
+        long secondsElapsed = (System.currentTimeMillis() - before) / 1000;
+        assertTrue("6 seconds should elapse", secondsElapsed == 6);
+    }
+
+}

spring-5-mvc/pom.xml

@@ -66,7 +66,6 @@
         <dependency>
             <groupId>com.fasterxml.jackson.module</groupId>
             <artifactId>jackson-module-kotlin</artifactId>
-            <version>2.8.7</version>
         </dependency>
 
         <!-- runtime and test scoped -->

spring-5-mvc/src/test/kotlin/com/baeldung/LiveTest.java

@@ -14,16 +14,19 @@ public class LiveTest {
 
     private static String APP_ROOT = "http://localhost:8081";
 
-    
     @Test
     public void givenUser_whenResourceCreatedWithNullName_then400BadRequest() {
-        final Response response = givenAuth("user", "pass").contentType(MediaType.APPLICATION_JSON.toString()).body(resourceWithNullName()).post(APP_ROOT + "/foos");
+        final Response response = givenAuth("user", "pass").contentType(MediaType.APPLICATION_JSON.toString())
+            .body(resourceWithNullName())
+            .post(APP_ROOT + "/foos");
         assertEquals(400, response.getStatusCode());
     }
-    
+
     @Test
     public void givenUser_whenResourceCreated_then201Created() {
-        final Response response = givenAuth("user", "pass").contentType(MediaType.APPLICATION_JSON.toString()).body(resourceString()).post(APP_ROOT + "/foos");
+        final Response response = givenAuth("user", "pass").contentType(MediaType.APPLICATION_JSON.toString())
+            .body(resourceString())
+            .post(APP_ROOT + "/foos");
         assertEquals(201, response.getStatusCode());
     }
 
@@ -32,21 +35,22 @@ public class LiveTest {
         final Response response = givenAuth("user", "pass").get(APP_ROOT + "/foos");
         assertEquals(200, response.getStatusCode());
     }*/
-    
-    
 
     //
 
     private final String resourceWithNullName() {
         return "{\"name\":null}";
     }
-    
+
     private final String resourceString() {
         return "{\"name\":\"" + randomAlphabetic(8) + "\"}";
-     }
+    }
 
     private final RequestSpecification givenAuth(String username, String password) {
-        return RestAssured.given().auth().preemptive().basic(username, password);
+        return RestAssured.given()
+            .auth()
+            .preemptive()
+            .basic(username, password);
     }
 
 }

spring-5/README.md

@@ -9,3 +9,5 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 - [Introduction to the Functional Web Framework in Spring 5](http://www.baeldung.com/spring-5-functional-web)
 - [Exploring the Spring 5 MVC URL Matching Improvements](http://www.baeldung.com/spring-5-mvc-url-matching)
 - [Spring 5 WebClient](http://www.baeldung.com/spring-5-webclient)
+- [Spring 5 Functional Bean Registration](http://www.baeldung.com/spring-5-functional-beans)
+

spring-5/pom.xml

@@ -1,188 +1,196 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
 
-    <groupId>com.baeldung</groupId>
-    <artifactId>spring-5</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
-    <packaging>jar</packaging>
+	<groupId>com.baeldung</groupId>
+	<artifactId>spring-5</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
 
-    <name>spring-5</name>
-    <description>spring 5 sample project about new features</description>
+	<name>spring-5</name>
+	<description>spring 5 sample project about new features</description>
 
-    <parent>
-        <groupId>org.springframework.boot</groupId>
-        <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.0.0.M1</version>
-        <relativePath /> <!-- lookup parent from repository -->
-    </parent>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.0.0.M1</version>
+		<relativePath /> <!-- lookup parent from repository -->
+	</parent>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-data-jpa</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-security</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-validation</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-webflux</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.projectreactor</groupId>
-            <artifactId>reactor-spring</artifactId>
-            <version>1.0.1.RELEASE</version>
-        </dependency>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-security</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-validation</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-webflux</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.projectreactor</groupId>
+			<artifactId>reactor-spring</artifactId>
+			<version>${reactor-spring.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>javax.json.bind</groupId>
+			<artifactId>javax.json.bind-api</artifactId>
+			<version>${jsonb-api.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.geronimo.specs</groupId>
+			<artifactId>geronimo-json_1.1_spec</artifactId>
+			<version>${geronimo-json_1.1_spec.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.johnzon</groupId>
+			<artifactId>johnzon-jsonb</artifactId>
+			<version>${johnzon.version}</version>
+		</dependency>
+		<!-- utils -->
+		<dependency>
+			<groupId>org.apache.commons</groupId>
+			<artifactId>commons-lang3</artifactId>
+		</dependency>
 
-        <!-- utils -->
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-lang3</artifactId>
-        </dependency>
+		<!-- runtime and test scoped -->
 
-        <!-- runtime and test scoped -->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-devtools</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>runtime</scope>
+		</dependency>
 
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-devtools</artifactId>
-            <scope>runtime</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.h2database</groupId>
-            <artifactId>h2</artifactId>
-            <scope>runtime</scope>
-        </dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-test</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
 
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-test</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
-        </dependency>
+		<dependency>
+			<groupId>org.junit.jupiter</groupId>
+			<artifactId>junit-jupiter-api</artifactId>
+			<version>${junit.jupiter.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.junit.jupiter</groupId>
+			<artifactId>junit-jupiter-engine</artifactId>
+			<version>${junit.jupiter.version}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.junit.platform</groupId>
+			<artifactId>junit-platform-surefire-provider</artifactId>
+			<version>${junit.platform.version}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.junit.platform</groupId>
+			<artifactId>junit-platform-runner</artifactId>
+			<version>${junit.platform.version}</version>
+			<scope>test</scope>
+		</dependency>
 
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-api</artifactId>
-            <version>${junit.jupiter.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <version>${junit.jupiter.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.platform</groupId>
-            <artifactId>junit-platform-surefire-provider</artifactId>
-            <version>${junit.platform.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.platform</groupId>
-            <artifactId>junit-platform-runner</artifactId>
-            <version>${junit.platform.version}</version>
-            <scope>test</scope>
-        </dependency>
+	</dependencies>
 
-    </dependencies>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+				<configuration>
+					<mainClass>com.baeldung.Spring5Application</mainClass>
+					<layout>JAR</layout>
+				</configuration>
+			</plugin>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-maven-plugin</artifactId>
-                <configuration>
-                    <mainClass>com.baeldung.Spring5Application</mainClass>
-                    <layout>JAR</layout>
-                </configuration>
-            </plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<configuration>
+					<forkCount>3</forkCount>
+					<reuseForks>true</reuseForks>
+					<parallel>methods</parallel>
+					<useUnlimitedThreads>true</useUnlimitedThreads>
+					<excludes>
+						<exclude>**/*IntegrationTest.java</exclude>
+						<exclude>**/*LiveTest.java</exclude>
+					</excludes>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
 
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>${maven-surefire-plugin.version}</version>
-                <configuration>
-                    <forkCount>3</forkCount>
-                    <reuseForks>true</reuseForks>
-                    <excludes>
-                        <exclude>**/*IntegrationTest.java</exclude>
-                        <exclude>**/*LiveTest.java</exclude>
-                    </excludes>
-                </configuration>
-            </plugin>
+	<repositories>
+		<repository>
+			<id>spring-snapshots</id>
+			<name>Spring Snapshots</name>
+			<url>https://repo.spring.io/snapshot</url>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</repository>
+		<repository>
+			<id>spring-milestones</id>
+			<name>Spring Milestones</name>
+			<url>https://repo.spring.io/milestone</url>
+			<snapshots>
+				<enabled>false</enabled>
+			</snapshots>
+		</repository>
+	</repositories>
+	<pluginRepositories>
+		<pluginRepository>
+			<id>spring-snapshots</id>
+			<name>Spring Snapshots</name>
+			<url>https://repo.spring.io/snapshot</url>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</pluginRepository>
+		<pluginRepository>
+			<id>spring-milestones</id>
+			<name>Spring Milestones</name>
+			<url>https://repo.spring.io/milestone</url>
+			<snapshots>
+				<enabled>false</enabled>
+			</snapshots>
+		</pluginRepository>
+	</pluginRepositories>
 
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>${maven-surefire-plugin.version}</version>
-                <configuration>
-                    <parallel>methods</parallel>
-                    <useUnlimitedThreads>true</useUnlimitedThreads>
-                </configuration>
-            </plugin>
-
-        </plugins>
-    </build>
-
-    <repositories>
-        <repository>
-            <id>spring-snapshots</id>
-            <name>Spring Snapshots</name>
-            <url>https://repo.spring.io/snapshot</url>
-            <snapshots>
-                <enabled>true</enabled>
-            </snapshots>
-        </repository>
-        <repository>
-            <id>spring-milestones</id>
-            <name>Spring Milestones</name>
-            <url>https://repo.spring.io/milestone</url>
-            <snapshots>
-                <enabled>false</enabled>
-            </snapshots>
-        </repository>
-    </repositories>
-    <pluginRepositories>
-        <pluginRepository>
-            <id>spring-snapshots</id>
-            <name>Spring Snapshots</name>
-            <url>https://repo.spring.io/snapshot</url>
-            <snapshots>
-                <enabled>true</enabled>
-            </snapshots>
-        </pluginRepository>
-        <pluginRepository>
-            <id>spring-milestones</id>
-            <name>Spring Milestones</name>
-            <url>https://repo.spring.io/milestone</url>
-            <snapshots>
-                <enabled>false</enabled>
-            </snapshots>
-        </pluginRepository>
-    </pluginRepositories>
-
-    <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
-        <junit.platform.version>1.0.0-M4</junit.platform.version>
-        <junit.jupiter.version>5.0.0-M4</junit.jupiter.version>
-        <maven-surefire-plugin.version>2.20</maven-surefire-plugin.version>
-        <spring.version>5.0.0.RC2</spring.version>
-    </properties>
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+		<java.version>1.8</java.version>
+		<junit.platform.version>1.0.0-M4</junit.platform.version>
+		<junit.jupiter.version>5.0.0-M4</junit.jupiter.version>
+		<maven-surefire-plugin.version>2.20</maven-surefire-plugin.version>
+		<spring.version>5.0.0.RC2</spring.version>
+		<reactor-spring.version>1.0.1.RELEASE</reactor-spring.version>
+		<johnzon.version>1.1.3</johnzon.version>
+		<jsonb-api.version>1.0</jsonb-api.version>
+		<geronimo-json_1.1_spec.version>1.0</geronimo-json_1.1_spec.version>
+	</properties>
 
 </project>

spring-5/src/main/java/com/baeldung/Spring5Application.java

@@ -5,7 +5,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.ComponentScan;
 
 @SpringBootApplication
-@ComponentScan(basePackages = {"com.baeldung.web"})
+@ComponentScan(basePackages = { "com.baeldung.web" })
 public class Spring5Application {
 
     public static void main(String[] args) {

spring-5/src/main/java/com/baeldung/functional/FormHandler.java

@@ -17,28 +17,25 @@ import static org.springframework.web.reactive.function.server.ServerResponse.ok
 public class FormHandler {
 
     Mono<ServerResponse> handleLogin(ServerRequest request) {
-        return request
-          .body(toFormData())
-          .map(MultiValueMap::toSingleValueMap)
-          .filter(formData -> "baeldung".equals(formData.get("user")))
-          .filter(formData -> "you_know_what_to_do".equals(formData.get("token")))
-          .flatMap(formData -> ok().body(Mono.just("welcome back!"), String.class))
-          .switchIfEmpty(ServerResponse.badRequest().build());
+        return request.body(toFormData())
+            .map(MultiValueMap::toSingleValueMap)
+            .filter(formData -> "baeldung".equals(formData.get("user")))
+            .filter(formData -> "you_know_what_to_do".equals(formData.get("token")))
+            .flatMap(formData -> ok().body(Mono.just("welcome back!"), String.class))
+            .switchIfEmpty(ServerResponse.badRequest()
+                .build());
     }
 
     Mono<ServerResponse> handleUpload(ServerRequest request) {
-        return request
-          .body(toDataBuffers())
-          .collectList()
-          .flatMap(dataBuffers -> ok()
-            .body(fromObject(extractData(dataBuffers).toString())));
+        return request.body(toDataBuffers())
+            .collectList()
+            .flatMap(dataBuffers -> ok().body(fromObject(extractData(dataBuffers).toString())));
     }
 
     private AtomicLong extractData(List<DataBuffer> dataBuffers) {
         AtomicLong atomicLong = new AtomicLong(0);
-        dataBuffers.forEach(d -> atomicLong.addAndGet(d
-          .asByteBuffer()
-          .array().length));
+        dataBuffers.forEach(d -> atomicLong.addAndGet(d.asByteBuffer()
+            .array().length));
         return atomicLong;
     }
 }

spring-5/src/main/java/com/baeldung/functional/FunctionalSpringBootApplication.java

@@ -40,28 +40,25 @@ public class FunctionalSpringBootApplication {
     private RouterFunction<ServerResponse> routingFunction() {
         FormHandler formHandler = new FormHandler();
 
-        RouterFunction<ServerResponse> restfulRouter = route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest
-          .bodyToMono(Actor.class)
-          .doOnNext(actors::add)
-          .then(ok().build()));
+        RouterFunction<ServerResponse> restfulRouter = route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest.bodyToMono(Actor.class)
+            .doOnNext(actors::add)
+            .then(ok().build()));
 
-        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld")))
-          .andRoute(POST("/login"), formHandler::handleLogin)
-          .andRoute(POST("/upload"), formHandler::handleUpload)
-          .and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
-          .andNest(path("/actor"), restfulRouter)
-          .filter((request, next) -> {
-              System.out.println("Before handler invocation: " + request.path());
-              return next.handle(request);
-          });
+        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld"))).andRoute(POST("/login"), formHandler::handleLogin)
+            .andRoute(POST("/upload"), formHandler::handleUpload)
+            .and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
+            .andNest(path("/actor"), restfulRouter)
+            .filter((request, next) -> {
+                System.out.println("Before handler invocation: " + request.path());
+                return next.handle(request);
+            });
     }
 
     @Bean
     public ServletRegistrationBean servletRegistrationBean() throws Exception {
-        HttpHandler httpHandler = WebHttpHandlerBuilder
-          .webHandler((WebHandler) toHttpHandler(routingFunction()))
-          .prependFilter(new IndexRewriteFilter())
-          .build();
+        HttpHandler httpHandler = WebHttpHandlerBuilder.webHandler((WebHandler) toHttpHandler(routingFunction()))
+            .prependFilter(new IndexRewriteFilter())
+            .build();
         ServletRegistrationBean registrationBean = new ServletRegistrationBean<>(new RootServlet(httpHandler), "/");
         registrationBean.setLoadOnStartup(1);
         registrationBean.setAsyncSupported(true);
@@ -74,10 +71,9 @@ public class FunctionalSpringBootApplication {
     static class SecurityConfig extends WebSecurityConfigurerAdapter {
         @Override
         protected void configure(final HttpSecurity http) throws Exception {
-            http
-              .authorizeRequests()
-              .anyRequest()
-              .permitAll();
+            http.authorizeRequests()
+                .anyRequest()
+                .permitAll();
         }
     }
 

spring-5/src/main/java/com/baeldung/functional/FunctionalWebApplication.java

@@ -33,28 +33,25 @@ public class FunctionalWebApplication {
     private RouterFunction<ServerResponse> routingFunction() {
         FormHandler formHandler = new FormHandler();
 
-        RouterFunction<ServerResponse> restfulRouter = route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest
-          .bodyToMono(Actor.class)
-          .doOnNext(actors::add)
-          .then(ok().build()));
+        RouterFunction<ServerResponse> restfulRouter = route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest.bodyToMono(Actor.class)
+            .doOnNext(actors::add)
+            .then(ok().build()));
 
-        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld")))
-          .andRoute(POST("/login"), formHandler::handleLogin)
-          .andRoute(POST("/upload"), formHandler::handleUpload)
-          .and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
-          .andNest(path("/actor"), restfulRouter)
-          .filter((request, next) -> {
-              System.out.println("Before handler invocation: " + request.path());
-              return next.handle(request);
-          });
+        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld"))).andRoute(POST("/login"), formHandler::handleLogin)
+            .andRoute(POST("/upload"), formHandler::handleUpload)
+            .and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
+            .andNest(path("/actor"), restfulRouter)
+            .filter((request, next) -> {
+                System.out.println("Before handler invocation: " + request.path());
+                return next.handle(request);
+            });
     }
 
     WebServer start() throws Exception {
         WebHandler webHandler = (WebHandler) toHttpHandler(routingFunction());
-        HttpHandler httpHandler = WebHttpHandlerBuilder
-          .webHandler(webHandler)
-          .prependFilter(new IndexRewriteFilter())
-          .build();
+        HttpHandler httpHandler = WebHttpHandlerBuilder.webHandler(webHandler)
+            .prependFilter(new IndexRewriteFilter())
+            .build();
 
         Tomcat tomcat = new Tomcat();
         tomcat.setHostname("localhost");

spring-5/src/main/java/com/baeldung/functional/IndexRewriteFilter.java

@@ -11,17 +11,15 @@ class IndexRewriteFilter implements WebFilter {
     @Override
     public Mono<Void> filter(ServerWebExchange serverWebExchange, WebFilterChain webFilterChain) {
         ServerHttpRequest request = serverWebExchange.getRequest();
-        if (request
-          .getURI()
-          .getPath()
-          .equals("/")) {
-            return webFilterChain.filter(serverWebExchange
-              .mutate()
-              .request(builder -> builder
-                .method(request.getMethod())
-                .contextPath(request.getPath().toString())
-                .path("/test"))
-              .build());
+        if (request.getURI()
+            .getPath()
+            .equals("/")) {
+            return webFilterChain.filter(serverWebExchange.mutate()
+                .request(builder -> builder.method(request.getMethod())
+                    .contextPath(request.getPath()
+                        .toString())
+                    .path("/test"))
+                .build());
         }
         return webFilterChain.filter(serverWebExchange);
     }

spring-5/src/main/java/com/baeldung/functional/MyService.java

@@ -2,12 +2,10 @@ package com.baeldung.functional;
 
 import java.util.Random;
 
-import org.springframework.stereotype.Component;
-
 public class MyService {
 
-    public int getRandomNumber(){
+    public int getRandomNumber() {
         return (new Random().nextInt(10));
     }
-    
+
 }

spring-5/src/main/java/com/baeldung/functional/RootServlet.java

@@ -28,10 +28,9 @@ import org.springframework.web.server.WebHandler;
 public class RootServlet extends ServletHttpHandlerAdapter {
 
     public RootServlet() {
-        this(WebHttpHandlerBuilder
-          .webHandler((WebHandler) toHttpHandler(routingFunction()))
-          .prependFilter(new IndexRewriteFilter())
-          .build());
+        this(WebHttpHandlerBuilder.webHandler((WebHandler) toHttpHandler(routingFunction()))
+            .prependFilter(new IndexRewriteFilter())
+            .build());
     }
 
     RootServlet(HttpHandler httpHandler) {
@@ -44,44 +43,36 @@ public class RootServlet extends ServletHttpHandlerAdapter {
 
     private static RouterFunction<?> routingFunction() {
 
-        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld")))
-          .andRoute(POST("/login"), serverRequest -> serverRequest
-            .body(toFormData())
+        return route(GET("/test"), serverRequest -> ok().body(fromObject("helloworld"))).andRoute(POST("/login"), serverRequest -> serverRequest.body(toFormData())
             .map(MultiValueMap::toSingleValueMap)
             .map(formData -> {
                 System.out.println("form data: " + formData.toString());
                 if ("baeldung".equals(formData.get("user")) && "you_know_what_to_do".equals(formData.get("token"))) {
-                    return ok()
-                      .body(Mono.just("welcome back!"), String.class)
-                      .block();
+                    return ok().body(Mono.just("welcome back!"), String.class)
+                        .block();
                 }
-                return ServerResponse
-                  .badRequest()
-                  .build()
-                  .block();
+                return ServerResponse.badRequest()
+                    .build()
+                    .block();
             }))
-          .andRoute(POST("/upload"), serverRequest -> serverRequest
-            .body(toDataBuffers())
-            .collectList()
-            .map(dataBuffers -> {
-                AtomicLong atomicLong = new AtomicLong(0);
-                dataBuffers.forEach(d -> atomicLong.addAndGet(d
-                  .asByteBuffer()
-                  .array().length));
-                System.out.println("data length:" + atomicLong.get());
-                return ok()
-                  .body(fromObject(atomicLong.toString()))
-                  .block();
-            }))
-          .and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
-          .andNest(path("/actor"), route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest
-            .bodyToMono(Actor.class)
-            .doOnNext(actors::add)
-            .then(ok().build())))
-          .filter((request, next) -> {
-              System.out.println("Before handler invocation: " + request.path());
-              return next.handle(request);
-          });
+            .andRoute(POST("/upload"), serverRequest -> serverRequest.body(toDataBuffers())
+                .collectList()
+                .map(dataBuffers -> {
+                    AtomicLong atomicLong = new AtomicLong(0);
+                    dataBuffers.forEach(d -> atomicLong.addAndGet(d.asByteBuffer()
+                        .array().length));
+                    System.out.println("data length:" + atomicLong.get());
+                    return ok().body(fromObject(atomicLong.toString()))
+                        .block();
+                }))
+            .and(RouterFunctions.resources("/files/**", new ClassPathResource("files/")))
+            .andNest(path("/actor"), route(GET("/"), serverRequest -> ok().body(Flux.fromIterable(actors), Actor.class)).andRoute(POST("/"), serverRequest -> serverRequest.bodyToMono(Actor.class)
+                .doOnNext(actors::add)
+                .then(ok().build())))
+            .filter((request, next) -> {
+                System.out.println("Before handler invocation: " + request.path());
+                return next.handle(request);
+            });
 
     }
 

spring-5/src/main/java/com/baeldung/jsonb/Person.java

@@ -0,0 +1,139 @@
+package com.baeldung.jsonb;
+
+import java.math.BigDecimal;
+import java.time.LocalDate;
+
+import javax.json.bind.annotation.JsonbDateFormat;
+import javax.json.bind.annotation.JsonbNumberFormat;
+import javax.json.bind.annotation.JsonbProperty;
+import javax.json.bind.annotation.JsonbTransient;
+
+public class Person {
+
+    @JsonbProperty("person-name")
+    private String name;
+    @JsonbProperty(nillable = true)
+    private String email;
+    @JsonbTransient
+    private int age;
+    @JsonbDateFormat("dd-MM-yyyy")
+    private LocalDate registeredDate;
+    private BigDecimal salary;
+
+    public Person() {
+    }
+
+    public Person(String name, String email, int age, LocalDate registeredDate, BigDecimal salary) {
+        super();
+        this.name = name;
+        this.email = email;
+        this.age = age;
+        this.registeredDate = registeredDate;
+        this.salary = salary;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @JsonbNumberFormat(locale = "en_US", value = "#0.0")
+    public BigDecimal getSalary() {
+        return salary;
+    }
+
+    public void setSalary(BigDecimal salary) {
+        this.salary = salary;
+    }
+
+    public LocalDate getRegisteredDate() {
+        return registeredDate;
+    }
+
+    public void setRegisteredDate(LocalDate registeredDate) {
+        this.registeredDate = registeredDate;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+        builder.append("Person [name=");
+        builder.append(name);
+        builder.append(", email=");
+        builder.append(email);
+        builder.append(", age=");
+        builder.append(age);
+        builder.append(", registeredDate=");
+        builder.append(registeredDate);
+        builder.append(", salary=");
+        builder.append(salary);
+        builder.append("]");
+        return builder.toString();
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + age;
+        result = prime * result + ((email == null) ? 0 : email.hashCode());
+        result = prime * result + ((name == null) ? 0 : name.hashCode());
+        result = prime * result + ((registeredDate == null) ? 0 : registeredDate.hashCode());
+        result = prime * result + ((salary == null) ? 0 : salary.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        Person other = (Person) obj;
+        if (age != other.age)
+            return false;
+        if (email == null) {
+            if (other.email != null)
+                return false;
+        } else if (!email.equals(other.email))
+            return false;
+        if (name == null) {
+            if (other.name != null)
+                return false;
+        } else if (!name.equals(other.name))
+            return false;
+        if (registeredDate == null) {
+            if (other.registeredDate != null)
+                return false;
+        } else if (!registeredDate.equals(other.registeredDate))
+            return false;
+        if (salary == null) {
+            if (other.salary != null)
+                return false;
+        } else if (!salary.equals(other.salary))
+            return false;
+        return true;
+    }
+
+}

spring-5/src/main/java/com/baeldung/jsonb/PersonController.java

@@ -0,0 +1,58 @@
+package com.baeldung.jsonb;
+
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import javax.annotation.PostConstruct;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController("/person")
+public class PersonController {
+
+    List<Person> personRepository;
+
+    @PostConstruct
+    public void init() {
+        // @formatter:off
+        personRepository = new ArrayList<>(Arrays.asList(
+            new Person("Jhon", "jhon@test.com", 20, LocalDate.of(2019, 9, 9), BigDecimal.valueOf(1000)), 
+            new Person("Jhon", "jhon1@test.com", 20, LocalDate.of(2019, 9, 9), BigDecimal.valueOf(1500)), 
+            new Person("Jhon", null, 20, LocalDate.of(2019, 9, 9), BigDecimal.valueOf(1000)),  
+            new Person("Tom", "tom@test.com", 21, LocalDate.of(2019, 9, 9), BigDecimal.valueOf(1500)), 
+            new Person("Mark", "mark@test.com", 21, LocalDate.of(2019, 9, 9), BigDecimal.valueOf(1200)), 
+            new Person("Julia", "jhon@test.com", 20, LocalDate.of(2019, 9, 9), BigDecimal.valueOf(1000))));
+        // @formatter:on
+
+    }
+
+    @GetMapping("/person/{id}")
+    @ResponseBody
+    public Person findById(@PathVariable final int id) {
+        return personRepository.get(id);
+    }
+
+    @PostMapping("/person")
+    @ResponseStatus(HttpStatus.OK)
+    @ResponseBody
+    public boolean insertPerson(@RequestBody final Person person) {
+        return personRepository.add(person);
+    }
+
+    @GetMapping("/person")
+    @ResponseBody
+    public List<Person> findAll() {
+        return personRepository;
+    }
+
+}

spring-5/src/main/java/com/baeldung/jsonb/Spring5Application.java

@@ -0,0 +1,30 @@
+package com.baeldung.jsonb;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.http.converter.HttpMessageConverter;
+import org.springframework.http.converter.json.JsonbHttpMessageConverter;
+
+@SpringBootApplication
+@ComponentScan(basePackages = { "com.baeldung.jsonb" })
+public class Spring5Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Spring5Application.class, args);
+    }
+
+    @Bean
+    public HttpMessageConverters customConverters() {
+        Collection<HttpMessageConverter<?>> messageConverters = new ArrayList<>();
+        JsonbHttpMessageConverter jsonbHttpMessageConverter = new JsonbHttpMessageConverter();
+        messageConverters.add(jsonbHttpMessageConverter);
+        return new HttpMessageConverters(true, messageConverters);
+    }
+
+}

spring-5/src/main/java/com/baeldung/jupiter/ParameterAutowireUtils.java

@@ -27,16 +27,14 @@ abstract class ParameterAutowireUtils {
 
     public static Object resolveDependency(Parameter parameter, Class<?> containingClass, ApplicationContext applicationContext) {
 
-        boolean required = findMergedAnnotation(parameter, Autowired.class)
-          .map(Autowired::required)
-          .orElse(true);
+        boolean required = findMergedAnnotation(parameter, Autowired.class).map(Autowired::required)
+            .orElse(true);
         MethodParameter methodParameter = (parameter.getDeclaringExecutable() instanceof Method ? MethodParameterFactory.createSynthesizingMethodParameter(parameter) : MethodParameterFactory.createMethodParameter(parameter));
         DependencyDescriptor descriptor = new DependencyDescriptor(methodParameter, required);
         descriptor.setContainingClass(containingClass);
 
-        return applicationContext
-          .getAutowireCapableBeanFactory()
-          .resolveDependency(descriptor, null);
+        return applicationContext.getAutowireCapableBeanFactory()
+            .resolveDependency(descriptor, null);
     }
 
     private static <A extends Annotation> Optional<A> findMergedAnnotation(AnnotatedElement element, Class<A> annotationType) {

spring-5/src/main/java/com/baeldung/jupiter/SpringExtension.java

@@ -26,11 +26,9 @@ public class SpringExtension implements BeforeAllCallback, AfterAllCallback, Tes
         try {
             getTestContextManager(context).afterTestClass();
         } finally {
-            context
-              .getStore(namespace)
-              .remove(context
-                .getTestClass()
-                .get());
+            context.getStore(namespace)
+                .remove(context.getTestClass()
+                    .get());
         }
     }
 
@@ -42,21 +40,18 @@ public class SpringExtension implements BeforeAllCallback, AfterAllCallback, Tes
     @Override
     public void beforeEach(TestExtensionContext context) throws Exception {
         Object testInstance = context.getTestInstance();
-        Method testMethod = context
-          .getTestMethod()
-          .get();
+        Method testMethod = context.getTestMethod()
+            .get();
         getTestContextManager(context).beforeTestMethod(testInstance, testMethod);
     }
 
     @Override
     public void afterEach(TestExtensionContext context) throws Exception {
         Object testInstance = context.getTestInstance();
-        Method testMethod = context
-          .getTestMethod()
-          .get();
-        Throwable testException = context
-          .getTestException()
-          .orElse(null);
+        Method testMethod = context.getTestMethod()
+            .get();
+        Throwable testException = context.getTestException()
+            .orElse(null);
         getTestContextManager(context).afterTestMethod(testInstance, testMethod, testException);
     }
 
@@ -70,24 +65,21 @@ public class SpringExtension implements BeforeAllCallback, AfterAllCallback, Tes
     @Override
     public Object resolve(ParameterContext parameterContext, ExtensionContext extensionContext) {
         Parameter parameter = parameterContext.getParameter();
-        Class<?> testClass = extensionContext
-          .getTestClass()
-          .get();
+        Class<?> testClass = extensionContext.getTestClass()
+            .get();
         ApplicationContext applicationContext = getApplicationContext(extensionContext);
         return ParameterAutowireUtils.resolveDependency(parameter, testClass, applicationContext);
     }
 
     private ApplicationContext getApplicationContext(ExtensionContext context) {
-        return getTestContextManager(context)
-          .getTestContext()
-          .getApplicationContext();
+        return getTestContextManager(context).getTestContext()
+            .getApplicationContext();
     }
 
     private TestContextManager getTestContextManager(ExtensionContext context) {
         Assert.notNull(context, "ExtensionContext must not be null");
-        Class<?> testClass = context
-          .getTestClass()
-          .get();
+        Class<?> testClass = context.getTestClass()
+            .get();
         ExtensionContext.Store store = context.getStore(namespace);
         return store.getOrComputeIfAbsent(testClass, TestContextManager::new, TestContextManager.class);
     }

spring-5/src/main/java/com/baeldung/jupiter/SpringJUnit5Config.java

@@ -26,8 +26,7 @@ public @interface SpringJUnit5Config {
     String[] locations() default {};
 
     @AliasFor(annotation = ContextConfiguration.class)
-    Class<? extends ApplicationContextInitializer<?
-      extends ConfigurableApplicationContext>>[] initializers() default {};
+    Class<? extends ApplicationContextInitializer<? extends ConfigurableApplicationContext>>[] initializers() default {};
 
     @AliasFor(annotation = ContextConfiguration.class)
     boolean inheritLocations() default true;

spring-5/src/main/java/com/baeldung/persistence/DataSetupBean.java

@@ -20,7 +20,8 @@ public class DataSetupBean implements InitializingBean {
 
     @Override
     public void afterPropertiesSet() throws Exception {
-        IntStream.range(1, 20).forEach(i -> repo.save(new Foo(randomAlphabetic(8))));
+        IntStream.range(1, 20)
+            .forEach(i -> repo.save(new Foo(randomAlphabetic(8))));
     }
 
 }

spring-5/src/main/java/com/baeldung/web/FooController.java

@@ -23,7 +23,8 @@ public class FooController {
     @ResponseBody
     @Validated
     public Foo findById(@PathVariable @Min(0) final long id) {
-        return repo.findById(id).orElse(null);
+        return repo.findById(id)
+            .orElse(null);
     }
 
     @GetMapping
@@ -36,7 +37,8 @@ public class FooController {
     @ResponseBody
     @Validated
     public List<Foo> findPaginated(@RequestParam("page") @Min(0) final int page, @Max(100) @RequestParam("size") final int size) {
-        return repo.findAll(PageRequest.of(page, size)).getContent();
+        return repo.findAll(PageRequest.of(page, size))
+            .getContent();
     }
 
     // API - write

spring-5/src/main/java/com/baeldung/web/reactive/Task.java

@@ -23,9 +23,6 @@ public class Task {
 
     @Override
     public String toString() {
-        return "Task{" +
-          "name='" + name + '\'' +
-          ", id=" + id +
-          '}';
+        return "Task{" + "name='" + name + '\'' + ", id=" + id + '}';
     }
 }

spring-5/src/main/java/com/baeldung/web/reactive/client/WebClientController.java

@@ -33,17 +33,17 @@ public class WebClientController {
         WebClient.UriSpec<WebClient.RequestBodySpec> request2 = createWebClientWithServerURLAndDefaultValues().post();
 
         // request body specifications
-        WebClient.RequestBodySpec uri1 = createWebClientWithServerURLAndDefaultValues().method(HttpMethod.POST).uri("/resource");
-        WebClient.RequestBodySpec uri2 = createWebClientWithServerURLAndDefaultValues().post().uri(URI.create("/resource"));
+        WebClient.RequestBodySpec uri1 = createWebClientWithServerURLAndDefaultValues().method(HttpMethod.POST)
+            .uri("/resource");
+        WebClient.RequestBodySpec uri2 = createWebClientWithServerURLAndDefaultValues().post()
+            .uri(URI.create("/resource"));
 
         // request header specification
         WebClient.RequestHeadersSpec<?> requestSpec1 = uri1.body(BodyInserters.fromPublisher(Mono.just("data"), String.class));
         WebClient.RequestHeadersSpec<?> requestSpec2 = uri2.body(BodyInserters.fromObject("data"));
 
         // inserters
-        BodyInserter<Publisher<String>, ReactiveHttpOutputMessage> inserter1 = BodyInserters
-                .fromPublisher(Subscriber::onComplete, String.class);
-
+        BodyInserter<Publisher<String>, ReactiveHttpOutputMessage> inserter1 = BodyInserters.fromPublisher(Subscriber::onComplete, String.class);
 
         LinkedMultiValueMap<String, String> map = new LinkedMultiValueMap<>();
         map.add("key1", "value1");
@@ -53,14 +53,13 @@ public class WebClientController {
         BodyInserter<String, ReactiveHttpOutputMessage> inserter3 = BodyInserters.fromObject("body");
 
         // responses
-        WebClient.ResponseSpec response1 = uri1
-                .body(inserter3)
-                .header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
-                .accept(MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML)
-                .acceptCharset(Charset.forName("UTF-8"))
-                .ifNoneMatch("*")
-                .ifModifiedSince(ZonedDateTime.now())
-                .retrieve();
+        WebClient.ResponseSpec response1 = uri1.body(inserter3)
+            .header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+            .accept(MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML)
+            .acceptCharset(Charset.forName("UTF-8"))
+            .ifNoneMatch("*")
+            .ifModifiedSince(ZonedDateTime.now())
+            .retrieve();
         WebClient.ResponseSpec response2 = requestSpec2.retrieve();
 
     }
@@ -74,13 +73,12 @@ public class WebClientController {
     }
 
     private WebClient createWebClientWithServerURLAndDefaultValues() {
-        return WebClient
-                .builder()
-                .baseUrl("http://localhost:8081")
-                .defaultCookie("cookieKey", "cookieValue")
-                .defaultHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
-                .defaultUriVariables(Collections.singletonMap("url", "http://localhost:8080"))
-                .build();
+        return WebClient.builder()
+            .baseUrl("http://localhost:8081")
+            .defaultCookie("cookieKey", "cookieValue")
+            .defaultHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+            .defaultUriVariables(Collections.singletonMap("url", "http://localhost:8080"))
+            .build();
     }
 
 }

spring-5/src/test/java/com/baeldung/ParallelIntegrationTest.java

@@ -9,14 +9,14 @@ public class ParallelIntegrationTest {
 
     @Test
     public void runTests() {
-        final Class<?>[] classes = {Example1IntegrationTest.class, Example2IntegrationTest.class};
+        final Class<?>[] classes = { Example1IntegrationTest.class, Example2IntegrationTest.class };
 
         JUnitCore.runClasses(new Computer(), classes);
     }
 
     @Test
     public void runTestsInParallel() {
-        final Class<?>[] classes = {Example1IntegrationTest.class, Example2IntegrationTest.class};
+        final Class<?>[] classes = { Example1IntegrationTest.class, Example2IntegrationTest.class };
 
         JUnitCore.runClasses(new ParallelComputer(true, true), classes);
     }

spring-5/src/test/java/com/baeldung/Spring5JUnit4ConcurrentIntegrationTest.java

@@ -50,5 +50,3 @@ public class Spring5JUnit4ConcurrentIntegrationTest implements ApplicationContex
     }
 
 }
-
-

spring-5/src/test/java/com/baeldung/functional/FunctionalWebApplicationIntegrationTest.java

@@ -23,10 +23,9 @@ public class FunctionalWebApplicationIntegrationTest {
     @BeforeClass
     public static void setup() throws Exception {
         server = new FunctionalWebApplication().start();
-        client = WebTestClient
-          .bindToServer()
-          .baseUrl("http://localhost:" + server.getPort())
-          .build();
+        client = WebTestClient.bindToServer()
+            .baseUrl("http://localhost:" + server.getPort())
+            .build();
     }
 
     @AfterClass
@@ -36,26 +35,24 @@ public class FunctionalWebApplicationIntegrationTest {
 
     @Test
     public void givenRouter_whenGetTest_thenGotHelloWorld() throws Exception {
-        client
-          .get()
-          .uri("/test")
-          .exchange()
-          .expectStatus()
-          .isOk()
-          .expectBody(String.class)
-          .isEqualTo("helloworld");
+        client.get()
+            .uri("/test")
+            .exchange()
+            .expectStatus()
+            .isOk()
+            .expectBody(String.class)
+            .isEqualTo("helloworld");
     }
 
     @Test
     public void givenIndexFilter_whenRequestRoot_thenRewrittenToTest() throws Exception {
-        client
-          .get()
-          .uri("/")
-          .exchange()
-          .expectStatus()
-          .isOk()
-          .expectBody(String.class)
-          .isEqualTo("helloworld");
+        client.get()
+            .uri("/")
+            .exchange()
+            .expectStatus()
+            .isOk()
+            .expectBody(String.class)
+            .isEqualTo("helloworld");
     }
 
     @Test
@@ -64,16 +61,15 @@ public class FunctionalWebApplicationIntegrationTest {
         formData.add("user", "baeldung");
         formData.add("token", "you_know_what_to_do");
 
-        client
-          .post()
-          .uri("/login")
-          .contentType(MediaType.APPLICATION_FORM_URLENCODED)
-          .body(BodyInserters.fromFormData(formData))
-          .exchange()
-          .expectStatus()
-          .isOk()
-          .expectBody(String.class)
-          .isEqualTo("welcome back!");
+        client.post()
+            .uri("/login")
+            .contentType(MediaType.APPLICATION_FORM_URLENCODED)
+            .body(BodyInserters.fromFormData(formData))
+            .exchange()
+            .expectStatus()
+            .isOk()
+            .expectBody(String.class)
+            .isEqualTo("welcome back!");
     }
 
     @Test
@@ -82,70 +78,64 @@ public class FunctionalWebApplicationIntegrationTest {
         formData.add("user", "baeldung");
         formData.add("token", "try_again");
 
-        client
-          .post()
-          .uri("/login")
-          .contentType(MediaType.APPLICATION_FORM_URLENCODED)
-          .body(BodyInserters.fromFormData(formData))
-          .exchange()
-          .expectStatus()
-          .isBadRequest();
+        client.post()
+            .uri("/login")
+            .contentType(MediaType.APPLICATION_FORM_URLENCODED)
+            .body(BodyInserters.fromFormData(formData))
+            .exchange()
+            .expectStatus()
+            .isBadRequest();
     }
 
     @Test
     public void givenUploadForm_whenRequestWithMultipartData_thenSuccess() throws Exception {
         Resource resource = new ClassPathResource("/baeldung-weekly.png");
-        client
-          .post()
-          .uri("/upload")
-          .contentType(MediaType.MULTIPART_FORM_DATA)
-          .body(fromResource(resource))
-          .exchange()
-          .expectStatus()
-          .isOk()
-          .expectBody(String.class)
-          .isEqualTo(String.valueOf(resource.contentLength()));
+        client.post()
+            .uri("/upload")
+            .contentType(MediaType.MULTIPART_FORM_DATA)
+            .body(fromResource(resource))
+            .exchange()
+            .expectStatus()
+            .isOk()
+            .expectBody(String.class)
+            .isEqualTo(String.valueOf(resource.contentLength()));
     }
 
     @Test
     public void givenActors_whenAddActor_thenAdded() throws Exception {
-        client
-          .get()
-          .uri("/actor")
-          .exchange()
-          .expectStatus()
-          .isOk()
-          .expectBodyList(Actor.class)
-          .hasSize(2);
+        client.get()
+            .uri("/actor")
+            .exchange()
+            .expectStatus()
+            .isOk()
+            .expectBodyList(Actor.class)
+            .hasSize(2);
 
-        client
-          .post()
-          .uri("/actor")
-          .body(fromObject(new Actor("Clint", "Eastwood")))
-          .exchange()
-          .expectStatus()
-          .isOk();
+        client.post()
+            .uri("/actor")
+            .body(fromObject(new Actor("Clint", "Eastwood")))
+            .exchange()
+            .expectStatus()
+            .isOk();
 
-        client
-          .get()
-          .uri("/actor")
-          .exchange()
-          .expectStatus()
-          .isOk()
-          .expectBodyList(Actor.class)
-          .hasSize(3);
+        client.get()
+            .uri("/actor")
+            .exchange()
+            .expectStatus()
+            .isOk()
+            .expectBodyList(Actor.class)
+            .hasSize(3);
     }
 
     @Test
     public void givenResources_whenAccess_thenGot() throws Exception {
-        client
-          .get()
-          .uri("/files/hello.txt")
-          .exchange()
-          .expectStatus()
-          .isOk()
-          .expectBody(String.class)
-          .isEqualTo("hello");
+        client.get()
+            .uri("/files/hello.txt")
+            .exchange()
+            .expectStatus()
+            .isOk()
+            .expectBody(String.class)
+            .isEqualTo("hello");
     }
 
 }

spring-5/src/test/java/com/baeldung/jsonb/JsonbIntegrationTest.java

@@ -0,0 +1,44 @@
+package com.baeldung.jsonb;
+
+import static org.junit.Assert.assertTrue;
+
+import java.math.BigDecimal;
+import java.time.LocalDate;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = Spring5Application.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+public class JsonbIntegrationTest {
+    @Value("${security.user.name}")
+    private String username;
+    @Value("${security.user.password}")
+    private String password;
+
+    @Autowired
+    private TestRestTemplate template;
+
+    @Test
+    public void givenId_whenUriIsPerson_thenGetPerson() {
+        ResponseEntity<Person> response = template.withBasicAuth(username, password)
+            .getForEntity("/person/1", Person.class);
+        Person person = response.getBody();
+        assertTrue(person.equals(new Person("Jhon", "jhon1@test.com", 0, LocalDate.of(2019, 9, 9), BigDecimal.valueOf(1500.0))));
+    }
+
+    @Test
+    public void whenSendPostAPerson_thenGetOkStatus() {
+        ResponseEntity<Boolean> response = template.withBasicAuth(username, password)
+            .postForEntity("/person", "{\"birthDate\":\"07-09-2017\",\"email\":\"jhon1@test.com\",\"person-name\":\"Jhon\"}", Boolean.class);
+        boolean value = response.getBody();
+        assertTrue(true == value);
+    }
+
+}

spring-5/src/test/java/com/baeldung/jsonb/JsonbTest.java

@@ -0,0 +1,38 @@
+package com.baeldung.jsonb;
+
+import static org.junit.Assert.assertTrue;
+
+import java.math.BigDecimal;
+import java.time.LocalDate;
+
+import javax.json.bind.Jsonb;
+import javax.json.bind.JsonbBuilder;
+
+import org.junit.Before;
+import org.junit.Test;
+
+public class JsonbTest {
+
+    private Jsonb jsonb;
+
+    @Before
+    public void setup() {
+        jsonb = JsonbBuilder.create();
+    }
+
+    @Test
+    public void givenPersonObject_whenSerializeWithJsonb_thenGetPersonJson() {
+        Person person = new Person("Jhon", "jhon@test.com", 20, LocalDate.of(2019, 9, 7), BigDecimal.valueOf(1000));
+        String jsonPerson = jsonb.toJson(person);
+        assertTrue("{\"email\":\"jhon@test.com\",\"person-name\":\"Jhon\",\"registeredDate\":\"07-09-2019\",\"salary\":\"1000.0\"}".equals(jsonPerson));
+    }
+
+    @Test
+    public void givenPersonJson_whenDeserializeWithJsonb_thenGetPersonObject() {
+        Person person = new Person("Jhon", "jhon@test.com", 0, LocalDate.of(2019, 9, 7), BigDecimal.valueOf(1000.0));
+        String jsonPerson = "{\"email\":\"jhon@test.com\",\"person-name\":\"Jhon\",\"registeredDate\":\"07-09-2019\",\"salary\":\"1000.0\"}";
+        assertTrue(jsonb.fromJson(jsonPerson, Person.class)
+            .equals(person));
+    }
+
+}

spring-5/src/test/java/com/baeldung/jupiter/Spring5JUnit5ParallelIntegrationTest.java

@@ -11,18 +11,14 @@ class Spring5JUnit5ParallelIntegrationTest {
 
     @Test
     void givenTwoTestClasses_whenJUnitRunParallel_thenTheTestsExecutingParallel() {
-        final Class<?>[] classes = {
-          Example1IntegrationTest.class, Example2IntegrationTest.class
-        };
+        final Class<?>[] classes = { Example1IntegrationTest.class, Example2IntegrationTest.class };
 
         JUnitCore.runClasses(new ParallelComputer(true, true), classes);
     }
 
     @Test
     void givenTwoTestClasses_whenJUnitRunParallel_thenTheTestsExecutingLinear() {
-        final Class<?>[] classes = {
-          Example1IntegrationTest.class, Example2IntegrationTest.class
-        };
+        final Class<?>[] classes = { Example1IntegrationTest.class, Example2IntegrationTest.class };
 
         JUnitCore.runClasses(new Computer(), classes);
     }

spring-5/src/test/java/com/baeldung/jupiter/Spring5Java8NewFeaturesIntegrationTest.java

@@ -16,18 +16,16 @@ class Spring5Java8NewFeaturesIntegrationTest {
     }
 
     public class StringUtils {
-        FunctionalInterfaceExample<String, String>
-          functionLambdaString = s -> Pattern.compile(" +").splitAsStream(s)
-          .map(word -> new StringBuilder(word).reverse())
-          .collect(Collectors.joining(" "));
+        FunctionalInterfaceExample<String, String> functionLambdaString = s -> Pattern.compile(" +")
+            .splitAsStream(s)
+            .map(word -> new StringBuilder(word).reverse())
+            .collect(Collectors.joining(" "));
     }
 
     @Test
-    void givenStringUtil_whenSupplierCall_thenFunctionalInterfaceReverseString()
-      throws Exception {
+    void givenStringUtil_whenSupplierCall_thenFunctionalInterfaceReverseString() throws Exception {
         Supplier<StringUtils> stringUtilsSupplier = StringUtils::new;
 
-        assertEquals(stringUtilsSupplier.get().functionLambdaString
-          .reverseString("hello"), "olleh");
+        assertEquals(stringUtilsSupplier.get().functionLambdaString.reverseString("hello"), "olleh");
     }
 }

spring-5/src/test/java/com/baeldung/jupiter/Spring5ReactiveServerClientIntegrationTest.java

@@ -25,20 +25,15 @@ public class Spring5ReactiveServerClientIntegrationTest {
     @BeforeAll
     public static void setUp() throws Exception {
         HttpServer server = HttpServer.create("localhost", 8080);
-        RouterFunction<?> route = RouterFunctions
-          .route(POST("/task/process"), request -> ServerResponse
-            .ok()
-            .body(request
-              .bodyToFlux(Task.class)
-              .map(ll -> new Task("TaskName", 1)), Task.class))
-          .and(RouterFunctions.route(GET("/task"), request -> ServerResponse
-            .ok()
-            .body(Mono.just("server is alive"), String.class)));
+        RouterFunction<?> route = RouterFunctions.route(POST("/task/process"), request -> ServerResponse.ok()
+            .body(request.bodyToFlux(Task.class)
+                .map(ll -> new Task("TaskName", 1)), Task.class))
+            .and(RouterFunctions.route(GET("/task"), request -> ServerResponse.ok()
+                .body(Mono.just("server is alive"), String.class)));
         HttpHandler httpHandler = RouterFunctions.toHttpHandler(route);
         ReactorHttpHandlerAdapter adapter = new ReactorHttpHandlerAdapter(httpHandler);
-        nettyContext = server
-          .newHandler(adapter)
-          .block();
+        nettyContext = server.newHandler(adapter)
+            .block();
     }
 
     @AfterAll
@@ -46,55 +41,54 @@ public class Spring5ReactiveServerClientIntegrationTest {
         nettyContext.dispose();
     }
 
-//    @Test
-//    public void givenCheckTask_whenServerHandle_thenServerResponseALiveString() throws Exception {
-//        WebClient client = WebClient.create("http://localhost:8080");
-//        Mono<String> result = client
-//          .get()
-//          .uri("/task")
-//          .exchange()
-//          .then(response -> response.bodyToMono(String.class));
-//
-//        assertThat(result.block()).isInstanceOf(String.class);
-//    }
+    // @Test
+    // public void givenCheckTask_whenServerHandle_thenServerResponseALiveString() throws Exception {
+    // WebClient client = WebClient.create("http://localhost:8080");
+    // Mono<String> result = client
+    // .get()
+    // .uri("/task")
+    // .exchange()
+    // .then(response -> response.bodyToMono(String.class));
+    //
+    // assertThat(result.block()).isInstanceOf(String.class);
+    // }
 
-//    @Test
-//    public void givenThreeTasks_whenServerHandleTheTasks_thenServerResponseATask() throws Exception {
-//        URI uri = URI.create("http://localhost:8080/task/process");
-//        ExchangeFunction exchange = ExchangeFunctions.create(new ReactorClientHttpConnector());
-//        ClientRequest request = ClientRequest
-//          .method(HttpMethod.POST, uri)
-//          .body(BodyInserters.fromPublisher(getLatLngs(), Task.class))
-//          .build();
-//
-//        Flux<Task> taskResponse = exchange
-//          .exchange(request)
-//          .flatMap(response -> response.bodyToFlux(Task.class));
-//
-//        assertThat(taskResponse.blockFirst()).isInstanceOf(Task.class);
-//    }
+    // @Test
+    // public void givenThreeTasks_whenServerHandleTheTasks_thenServerResponseATask() throws Exception {
+    // URI uri = URI.create("http://localhost:8080/task/process");
+    // ExchangeFunction exchange = ExchangeFunctions.create(new ReactorClientHttpConnector());
+    // ClientRequest request = ClientRequest
+    // .method(HttpMethod.POST, uri)
+    // .body(BodyInserters.fromPublisher(getLatLngs(), Task.class))
+    // .build();
+    //
+    // Flux<Task> taskResponse = exchange
+    // .exchange(request)
+    // .flatMap(response -> response.bodyToFlux(Task.class));
+    //
+    // assertThat(taskResponse.blockFirst()).isInstanceOf(Task.class);
+    // }
 
-//    @Test
-//    public void givenCheckTask_whenServerHandle_thenOragicServerResponseALiveString() throws Exception {
-//        URI uri = URI.create("http://localhost:8080/task");
-//        ExchangeFunction exchange = ExchangeFunctions.create(new ReactorClientHttpConnector());
-//        ClientRequest request = ClientRequest
-//          .method(HttpMethod.GET, uri)
-//          .body(BodyInserters.fromPublisher(getLatLngs(), Task.class))
-//          .build();
-//
-//        Flux<String> taskResponse = exchange
-//          .exchange(request)
-//          .flatMap(response -> response.bodyToFlux(String.class));
-//
-//        assertThat(taskResponse.blockFirst()).isInstanceOf(String.class);
-//    }
+    // @Test
+    // public void givenCheckTask_whenServerHandle_thenOragicServerResponseALiveString() throws Exception {
+    // URI uri = URI.create("http://localhost:8080/task");
+    // ExchangeFunction exchange = ExchangeFunctions.create(new ReactorClientHttpConnector());
+    // ClientRequest request = ClientRequest
+    // .method(HttpMethod.GET, uri)
+    // .body(BodyInserters.fromPublisher(getLatLngs(), Task.class))
+    // .build();
+    //
+    // Flux<String> taskResponse = exchange
+    // .exchange(request)
+    // .flatMap(response -> response.bodyToFlux(String.class));
+    //
+    // assertThat(taskResponse.blockFirst()).isInstanceOf(String.class);
+    // }
 
     private static Flux<Task> getLatLngs() {
-        return Flux
-          .range(0, 3)
-          .zipWith(Flux.interval(Duration.ofSeconds(1)))
-          .map(x -> new Task("taskname", 1))
-          .doOnNext(ll -> System.out.println("Produced: {}" + ll));
+        return Flux.range(0, 3)
+            .zipWith(Flux.interval(Duration.ofSeconds(1)))
+            .map(x -> new Task("taskname", 1))
+            .doOnNext(ll -> System.out.println("Produced: {}" + ll));
     }
 }