merge upstream

akka-http/pom.xml

@@ -41,7 +41,6 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>1.8</java.version>
 		<akka.http.version>10.0.11</akka.http.version>
 		<akka.stream.version>2.5.11</akka.stream.version>
 	</properties>

algorithms-genetic/pom.xml

@@ -54,7 +54,6 @@
     </build>
 
     <properties>
-        <lombok.version>1.16.12</lombok.version>
         <commons-math3.version>3.6.1</commons-math3.version>
         <io.jenetics.version>3.7.0</io.jenetics.version>
         <org.assertj.core.version>3.9.0</org.assertj.core.version>

algorithms-miscellaneous-1/pom.xml

@@ -74,7 +74,6 @@
     </reporting>
 
     <properties>
-        <lombok.version>1.16.12</lombok.version>
         <commons-math3.version>3.6.1</commons-math3.version>
         <org.assertj.core.version>3.9.0</org.assertj.core.version>
         <commons-codec.version>1.11</commons-codec.version>

algorithms-miscellaneous-2/pom.xml

@@ -84,7 +84,6 @@
     </reporting>
 
     <properties>
-        <lombok.version>1.16.12</lombok.version>
         <commons-math3.version>3.6.1</commons-math3.version>
         <tradukisto.version>1.0.1</tradukisto.version>
         <org.jgrapht.core.version>1.0.1</org.jgrapht.core.version>

algorithms-sorting/pom.xml

@@ -49,7 +49,6 @@
     </build>
 
     <properties>
-        <lombok.version>1.16.12</lombok.version>
         <commons-math3.version>3.6.1</commons-math3.version>
         <org.assertj.core.version>3.9.0</org.assertj.core.version>
         <commons-codec.version>1.11</commons-codec.version>

apache-avro/pom.xml

@@ -82,7 +82,6 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <compiler-plugin.version>3.5</compiler-plugin.version>
         <avro.version>1.8.2</avro.version>
-        <java.version>1.8</java.version>
         <slf4j.version>1.7.25</slf4j.version>
     </properties>
 	

apache-curator/pom.xml

@@ -39,7 +39,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>${jackson-databind.version}</version>
+            <version>${jackson.version}</version>
         </dependency>
         <!-- test scoped -->
         <dependency>
@@ -59,7 +59,6 @@
     <properties>
         <curator.version>4.0.1</curator.version>
         <zookeeper.version>3.4.11</zookeeper.version>
-        <jackson-databind.version>2.9.7</jackson-databind.version>
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>
         <avaitility.version>1.7.0</avaitility.version>

apache-geode/pom.xml

@@ -32,8 +32,8 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>${maven.compiler.source}</source>
+                    <source>${java.version}</source>
-                    <target>${maven.compiler.target}</target>
+                    <target>${java.version}</target>
                 </configuration>
             </plugin>
         </plugins>
@@ -41,7 +41,5 @@
 	
     <properties>
         <geode.core>1.6.0</geode.core>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
     </properties>
 </project>

apache-spark/pom.xml

@@ -56,8 +56,8 @@
     			<artifactId>maven-compiler-plugin</artifactId>
     			<version>${maven-compiler-plugin.version}</version>
     			<configuration>
-      				<source>${maven.compiler.source}</source>
+      				<source>${java.version}</source>
-      				<target>${maven.compiler.target}</target>
+      				<target>${java.version}</target>
     			</configuration>
   			</plugin>
       		<plugin>
@@ -85,8 +85,6 @@
         <org.apache.spark.spark-streaming-kafka.version>2.3.0</org.apache.spark.spark-streaming-kafka.version>
         <com.datastax.spark.spark-cassandra-connector.version>2.3.0</com.datastax.spark.spark-cassandra-connector.version>
         <com.datastax.spark.spark-cassandra-connector-java.version>1.5.2</com.datastax.spark.spark-cassandra-connector-java.version>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
 		<maven-compiler-plugin.version>3.2</maven-compiler-plugin.version>
     </properties>
 

azure/pom.xml

@@ -127,7 +127,6 @@
         <docker.image.prefix>${azure.containerRegistry}.azurecr.io</docker.image.prefix>
         <docker-maven-plugin.version>1.1.0</docker-maven-plugin.version>
         <azure-webapp-maven-plugin.version>1.1.0</azure-webapp-maven-plugin.version>
-        <java.version>1.8</java.version>
     </properties>
 
 </project>

cdi/pom.xml

@@ -66,7 +66,6 @@
         <aspectjweaver.version>1.9.2</aspectjweaver.version>
         <hamcrest-core.version>1.3</hamcrest-core.version>
         <assertj-core.version>3.10.0</assertj-core.version>
-        <junit.version>4.12</junit.version>
         <spring.version>5.1.2.RELEASE</spring.version>
     </properties>
 </project>

core-groovy/pom.xml

@@ -23,6 +23,12 @@
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy-all</artifactId>
             <version>${groovy-all.version}</version>
+            <type>pom</type>
+        </dependency>
+        <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy-dateutil</artifactId>
+            <version>${groovy.version}</version>
         </dependency>
         <dependency>
             <groupId>org.codehaus.groovy</groupId>
@@ -103,9 +109,12 @@
 
     <properties>
         <junit.platform.version>1.0.0</junit.platform.version>
-        <groovy.version>2.4.13</groovy.version>
+<!--         <groovy.version>2.4.13</groovy.version> -->
-        <groovy-all.version>2.4.13</groovy-all.version>
+<!--         <groovy-all.version>2.4.13</groovy-all.version> -->
-        <groovy-sql.version>2.4.13</groovy-sql.version>
+<!--         <groovy-sql.version>2.4.13</groovy-sql.version> -->
+        <groovy.version>2.5.6</groovy.version>
+        <groovy-all.version>2.5.6</groovy-all.version>
+        <groovy-sql.version>2.5.6</groovy-sql.version>
         <hsqldb.version>2.4.0</hsqldb.version>
         <spock-core.version>1.1-groovy-2.4</spock-core.version>
         <gmavenplus-plugin.version>1.6</gmavenplus-plugin.version>

core-groovy/src/test/groovy/com/baeldung/date/DateTest.groovy

@@ -0,0 +1,57 @@
+package com.baeldung.groovy.sql
+
+import static org.junit.Assert.*
+import java.util.Calendar.*
+import java.time.LocalDate 
+import java.text.SimpleDateFormat 
+import org.junit.Test
+
+
+class DateTest {
+
+    def dateStr = "2019-02-28"
+    def pattern = "yyyy-MM-dd"  
+
+    @Test
+    void whenGetStringRepresentation_thenCorrectlyConvertIntoDate() {
+        def dateFormat = new SimpleDateFormat(pattern)
+        def date = dateFormat.parse(dateStr)
+                
+        println("       String to Date with DateFormatter : " + date)
+
+        def cal = new GregorianCalendar();
+        cal.setTime(date);
+
+        assertEquals(cal.get(Calendar.YEAR),2019)
+        assertEquals(cal.get(Calendar.DAY_OF_MONTH),28)
+        assertEquals(cal.get(Calendar.MONTH),java.util.Calendar.FEBRUARY)
+    }
+
+    @Test
+    void whenGetStringRepresentation_thenCorrectlyConvertWithDateUtilsExtension() {
+    
+        def date = Date.parse(pattern, dateStr)
+                
+        println("       String to Date with Date.parse : " + date)
+    
+        def cal = new GregorianCalendar();
+        cal.setTime(date);
+
+        assertEquals(cal.get(Calendar.YEAR),2019)
+        assertEquals(cal.get(Calendar.DAY_OF_MONTH),28)
+        assertEquals(cal.get(Calendar.MONTH),java.util.Calendar.FEBRUARY)
+    }    
+
+    @Test
+    void whenGetStringRepresentation_thenCorrectlyConvertIntoDateWithLocalDate() {
+        def date = LocalDate.parse(dateStr, pattern)
+
+        println("       String to Date with LocalDate     : " + date)
+
+        assertEquals(date.getYear(),2019)
+        assertEquals(date.getMonth(),java.time.Month.FEBRUARY)
+        assertEquals(date.getDayOfMonth(),28)
+    }
+
+
+}

core-java-11/src/main/java/com/baeldung/epsilongc/MemoryPolluter.java

@@ -0,0 +1,18 @@
+package com.baeldung.epsilongc;
+
+public class MemoryPolluter {
+
+    private static final int MEGABYTE_IN_BYTES = 1024 * 1024;
+    private static final int ITERATION_COUNT = 1024 * 10;
+
+    public static void main(String[] args) {
+        System.out.println("Starting pollution");
+
+        for (int i = 0; i < ITERATION_COUNT; i++) {
+            byte[] array = new byte[MEGABYTE_IN_BYTES];
+        }
+
+        System.out.println("Terminating");
+    }
+
+}

core-java-8/pom.xml

@@ -180,7 +180,6 @@
         <commons-collections4.version>4.1</commons-collections4.version>
         <collections-generic.version>4.01</collections-generic.version>
         <commons-codec.version>1.10</commons-codec.version>
-        <lombok.version>1.16.12</lombok.version>
         <vavr.version>0.9.0</vavr.version>
         <protonpack.version>1.13</protonpack.version>
         <joda.version>2.10</joda.version>

core-java-8/src/main/java/com/baeldung/streamreduce/application/Application.java

@@ -0,0 +1,62 @@
+package com.baeldung.streamreduce.application;
+
+import com.baeldung.streamreduce.entities.User;
+import com.baeldung.streamreduce.utilities.NumberUtils;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class Application {
+
+    public static void main(String[] args) {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        int result1 = numbers.stream().reduce(0, (a, b) -> a + b);
+        System.out.println(result1);
+        
+        int result2 = numbers.stream().reduce(0, Integer::sum);
+        System.out.println(result2);
+
+        List<String> letters = Arrays.asList("a", "b", "c", "d", "e");
+        String result3 = letters.stream().reduce("", (a, b) -> a + b);
+        System.out.println(result3);
+        
+        String result4 = letters.stream().reduce("", String::concat);
+        System.out.println(result4);
+
+        String result5 = letters.stream().reduce("", (a, b) -> a.toUpperCase() + b.toUpperCase());
+        System.out.println(result5);
+        
+        List<User> users = Arrays.asList(new User("John", 30), new User("Julie", 35));
+        int result6 = users.stream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+        System.out.println(result6);
+        
+        String result7 = letters.parallelStream().reduce("", String::concat);
+        System.out.println(result7);
+        
+        int result8 = users.parallelStream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+        System.out.println(result8);
+        
+        List<User> userList = new ArrayList<>();
+        for (int i = 0; i <= 1000000; i++) {
+            userList.add(new User("John" + i, i));
+        }
+        
+        long t1 = System.currentTimeMillis();
+        int result9 = userList.stream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+        long t2 = System.currentTimeMillis();
+        System.out.println(result9);
+        System.out.println("Sequential stream time: " + (t2 - t1) + "ms");
+        
+        long t3 = System.currentTimeMillis();
+        int result10 = userList.parallelStream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+        long t4 = System.currentTimeMillis();
+        System.out.println(result10);
+        System.out.println("Parallel stream time: " + (t4 - t3) + "ms");
+        
+        int result11 = NumberUtils.divideListElements(numbers, 1);
+        System.out.println(result11);
+        
+        int result12 = NumberUtils.divideListElementsWithExtractedTryCatchBlock(numbers, 0);
+        System.out.println(result12);
+    }    
+}

core-java-8/src/main/java/com/baeldung/streamreduce/entities/User.java

@@ -0,0 +1,25 @@
+package com.baeldung.streamreduce.entities;
+
+public class User {
+
+    private final String name;
+    private final int age;
+
+    public User(String name, int age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getAge() {
+        return age;
+    }
+    
+    @Override
+    public String toString() {
+        return "User{" + "name=" + name + ", age=" + age + '}';
+    }
+}

core-java-8/src/main/java/com/baeldung/streamreduce/utilities/NumberUtils.java

@@ -0,0 +1,52 @@
+package com.baeldung.streamreduce.utilities;
+
+import java.util.List;
+import java.util.function.BiFunction;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public abstract class NumberUtils {
+
+    private static final Logger LOGGER = Logger.getLogger(NumberUtils.class.getName());
+
+    public static int divideListElements(List<Integer> values, Integer divider) {
+        return values.stream()
+                .reduce(0, (a, b) -> {
+                    try {
+                        return a / divider + b / divider;
+                    } catch (ArithmeticException e) {
+                        LOGGER.log(Level.INFO, "Arithmetic Exception: Division by Zero");
+                    }
+                    return 0;
+                });
+    }
+    
+    public static int divideListElementsWithExtractedTryCatchBlock(List<Integer> values, int divider) {
+        return values.stream().reduce(0, (a, b) -> divide(a, divider) + divide(b, divider));
+    }
+    
+    public static int divideListElementsWithApplyFunctionMethod(List<Integer> values, int divider) {
+        BiFunction<Integer, Integer, Integer> division = (a, b) -> a / b;
+        return values.stream().reduce(0, (a, b) -> applyFunction(division, a, divider) + applyFunction(division, b, divider));
+    }
+    
+    private static int divide(int value, int factor) {
+        int result = 0;
+        try {
+            result = value / factor;
+        } catch (ArithmeticException e) {
+            LOGGER.log(Level.INFO, "Arithmetic Exception: Division by Zero");
+        }
+        return result;
+    }
+    
+    private static int applyFunction(BiFunction<Integer, Integer, Integer> function, int a, int b) {
+        try {
+            return function.apply(a, b);
+        }
+        catch(Exception e) {
+            LOGGER.log(Level.INFO, "Exception occurred!");
+        }
+        return 0;
+    }
+}

core-java-8/src/test/java/com/baeldung/streamreduce/tests/StreamReduceManualTest.java

@@ -0,0 +1,126 @@
+package com.baeldung.streamreduce.tests;
+
+import com.baeldung.streamreduce.entities.User;
+import com.baeldung.streamreduce.utilities.NumberUtils;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import static org.assertj.core.api.Assertions.assertThat;
+import org.junit.Test;
+
+public class StreamReduceManualTest {
+
+    @Test
+    public void givenIntegerList_whenReduceWithSumAccumulatorLambda_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        
+        int result = numbers.stream().reduce(0, (a, b) -> a + b);
+        
+        assertThat(result).isEqualTo(21);
+    }
+
+    @Test
+    public void givenIntegerList_whenReduceWithSumAccumulatorMethodReference_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        
+        int result = numbers.stream().reduce(0, Integer::sum);
+        
+        assertThat(result).isEqualTo(21);
+    }
+
+    @Test
+    public void givenStringList_whenReduceWithConcatenatorAccumulatorLambda_thenCorrect() {
+        List<String> letters = Arrays.asList("a", "b", "c", "d", "e");
+        
+        String result = letters.stream().reduce("", (a, b) -> a + b);
+        
+        assertThat(result).isEqualTo("abcde");
+    }
+
+    @Test
+    public void givenStringList_whenReduceWithConcatenatorAccumulatorMethodReference_thenCorrect() {
+        List<String> letters = Arrays.asList("a", "b", "c", "d", "e");
+        
+        String result = letters.stream().reduce("", String::concat);
+        
+        assertThat(result).isEqualTo("abcde");
+    }
+
+    @Test
+    public void givenStringList_whenReduceWithUppercaseConcatenatorAccumulator_thenCorrect() {
+        List<String> letters = Arrays.asList("a", "b", "c", "d", "e");
+        
+        String result = letters.stream().reduce("", (a, b) -> a.toUpperCase() + b.toUpperCase());
+        
+        assertThat(result).isEqualTo("ABCDE");
+    }
+
+    @Test
+    public void givenUserList_whenReduceWithAgeAccumulatorAndSumCombiner_thenCorrect() {
+        List<User> users = Arrays.asList(new User("John", 30), new User("Julie", 35));
+        
+        int result = users.stream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+        
+        assertThat(result).isEqualTo(65);
+    }
+
+    @Test
+    public void givenStringList_whenReduceWithParallelStream_thenCorrect() {
+        List<String> letters = Arrays.asList("a", "b", "c", "d", "e");
+        
+        String result = letters.parallelStream().reduce("", String::concat);
+        
+        assertThat(result).isEqualTo("abcde");
+    }
+
+    @Test
+    public void givenNumberUtilsClass_whenCalledDivideListElements_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        
+        assertThat(NumberUtils.divideListElements(numbers, 1)).isEqualTo(21);
+    }
+
+    @Test
+    public void givenNumberUtilsClass_whenCalledDivideListElementsWithExtractedTryCatchBlock_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        
+        assertThat(NumberUtils.divideListElementsWithExtractedTryCatchBlock(numbers, 1)).isEqualTo(21);
+    }
+
+    @Test
+    public void givenNumberUtilsClass_whenCalledDivideListElementsWithExtractedTryCatchBlockAndListContainsZero_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(0, 1, 2, 3, 4, 5, 6);
+        
+        assertThat(NumberUtils.divideListElementsWithExtractedTryCatchBlock(numbers, 1)).isEqualTo(21);
+    }
+    
+    @Test
+    public void givenNumberUtilsClass_whenCalledDivideListElementsWithExtractedTryCatchBlockAndDividerIsZero_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        
+        assertThat(NumberUtils.divideListElementsWithExtractedTryCatchBlock(numbers, 0)).isEqualTo(0);
+    }
+    
+    @Test
+    public void givenStream_whneCalleddivideListElementsWithApplyFunctionMethod_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        
+        assertThat(NumberUtils.divideListElementsWithApplyFunctionMethod(numbers, 1)).isEqualTo(21);
+    }
+    
+    @Test
+    public void givenTwoStreams_whenCalledReduceOnParallelizedStream_thenFasterExecutionTime() {
+        List<User> userList = new ArrayList<>();
+        for (int i = 0; i <= 1000000; i++) {
+            userList.add(new User("John" + i, i));
+        }
+        long currentTime1 = System.currentTimeMillis();
+        userList.stream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+        long sequentialExecutionTime = System.currentTimeMillis() -currentTime1;
+        long currentTime2 = System.currentTimeMillis();
+        userList.parallelStream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+        long parallelizedExecutionTime = System.currentTimeMillis() - currentTime2;
+        
+        assertThat(parallelizedExecutionTime).isLessThan(sequentialExecutionTime);
+    }
+}

core-java-arrays/pom.xml

@@ -390,7 +390,6 @@
 
         <!-- util -->
         <commons-lang3.version>3.8.1</commons-lang3.version>
-        <lombok.version>1.16.12</lombok.version>
         
         <jmh-core.version>1.19</jmh-core.version>
         <jmh-generator-annprocess.version>1.19</jmh-generator-annprocess.version>

core-java-collections-list/README.md

@@ -27,3 +27,4 @@
 - [Flattening Nested Collections in Java](http://www.baeldung.com/java-flatten-nested-collections)
 - [Intersection of Two Lists in Java](https://www.baeldung.com/java-lists-intersection)
 - [Multi Dimensional ArrayList in Java](https://www.baeldung.com/java-multi-dimensional-arraylist)
+- [Determine If All Elements Are the Same in a Java List](https://www.baeldung.com/java-list-all-equal)

core-java-collections-list/pom.xml

@@ -70,7 +70,6 @@
         <commons-lang3.version>3.8.1</commons-lang3.version>
         <avaitility.version>1.7.0</avaitility.version>
         <assertj.version>3.11.1</assertj.version>
-        <lombok.version>1.16.12</lombok.version>
 		<trove4j.version>3.0.2</trove4j.version>
 		<fastutil.version>8.1.0</fastutil.version>
 		<colt.version>1.2.0</colt.version>

core-java-collections/pom.xml

@@ -73,7 +73,6 @@
         <avaitility.version>1.7.0</avaitility.version>
         <assertj.version>3.11.1</assertj.version>
         <eclipse.collections.version>7.1.0</eclipse.collections.version>
-        <lombok.version>1.16.12</lombok.version>
 		<commons-exec.version>1.3</commons-exec.version>
     </properties>
 </project>

core-java-io/pom.xml

@@ -246,8 +246,6 @@
     </profiles>
 
     <properties>
-        <!-- marshalling -->
-        <jackson.version>2.9.7</jackson.version>
 
         <!-- util -->
         <commons-lang3.version>3.5</commons-lang3.version>
@@ -259,7 +257,6 @@
         <collections-generic.version>4.01</collections-generic.version>
         <unix4j.version>0.4</unix4j.version>
         <grep4j.version>1.8.7</grep4j.version>
-        <lombok.version>1.16.12</lombok.version>
         <fscontext.version>4.6-b01</fscontext.version>
         <protonpack.version>1.13</protonpack.version>
         <streamex.version>0.6.5</streamex.version>

core-java-lang-oop/pom.xml

@@ -82,7 +82,6 @@
 
         <!-- util -->
         <commons-lang3.version>3.5</commons-lang3.version>
-        <lombok.version>1.16.12</lombok.version>
         <!-- testing -->
         <assertj-core.version>3.10.0</assertj-core.version>
         <equalsverifier.version>3.0.3</equalsverifier.version>

core-java-lang/pom.xml

@@ -74,14 +74,10 @@
     </build>
 
     <properties>
-        
-        <!-- marshalling -->
-        <jackson.version>2.9.7</jackson.version>
         <gson.version>2.8.2</gson.version>
 
         <!-- util -->
         <commons-lang3.version>3.5</commons-lang3.version>
-        <lombok.version>1.16.12</lombok.version>
         
         <javax.mail.version>1.5.0-b01</javax.mail.version>
         

core-java-networking/README.md

@@ -13,4 +13,5 @@
 - [Working with Network Interfaces in Java](http://www.baeldung.com/java-network-interfaces)
 - [A Guide to Java Sockets](http://www.baeldung.com/a-guide-to-java-sockets)
 - [URL Encoding and Decoding in Java](http://www.baeldung.com/java-url-encoding-decoding)
-- [How to Perform a Simple HTTP Request in Java](http://www.baeldung.com/java-http-request)
+- [How to Perform a Simple HTTP Request in Java](http://www.baeldung.com/java-http-request)
+- [Difference between URL and URI](http://www.baeldung.com/java-url-vs-uri)

core-java-sun/pom.xml

@@ -261,8 +261,6 @@
     </profiles>
 
     <properties>
-        <!-- marshalling -->
-        <jackson.version>2.9.7</jackson.version>
 
         <!-- util -->
         <guava.version>23.0</guava.version>
@@ -275,7 +273,6 @@
         <collections-generic.version>4.01</collections-generic.version>
         <unix4j.version>0.4</unix4j.version>
         <grep4j.version>1.8.7</grep4j.version>
-        <lombok.version>1.16.12</lombok.version>
         <fscontext.version>4.6-b01</fscontext.version>
         <protonpack.version>1.13</protonpack.version>
         <streamex.version>0.6.5</streamex.version>

core-java/README.md

@@ -19,7 +19,6 @@
 - [Introduction to Java Serialization](http://www.baeldung.com/java-serialization)
 - [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)
-- [Difference between URL and URI](http://www.baeldung.com/java-url-vs-uri)
 - [Creating a Java Compiler Plugin](http://www.baeldung.com/java-build-compiler-plugin)
 - [Quick Guide to Java Stack](http://www.baeldung.com/java-stack)
 - [Compiling Java *.class Files with javac](http://www.baeldung.com/javac)

core-java/pom.xml

@@ -451,7 +451,6 @@
     <properties>
         
         <!-- marshalling -->
-        <jackson.version>2.9.7</jackson.version>
         <gson.version>2.8.2</gson.version>
 
         <!-- util -->
@@ -461,7 +460,6 @@
         <decimal4j.version>1.0.3</decimal4j.version>
         <unix4j.version>0.4</unix4j.version>
         <grep4j.version>1.8.7</grep4j.version>
-        <lombok.version>1.16.12</lombok.version>
         <fscontext.version>4.6-b01</fscontext.version>
         <protonpack.version>1.13</protonpack.version>
         <streamex.version>0.6.5</streamex.version>

core-java/src/main/java/com/baeldung/urlconnection/PostJSONWithHttpURLConnection.java

@@ -0,0 +1,46 @@
+package com.baeldung.urlconnection;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class PostJSONWithHttpURLConnection {
+	
+	public static void main (String []args) throws IOException{
+		//Change the URL with any other publicly accessible POST resource, which accepts JSON request body
+		URL url = new URL ("https://reqres.in/api/users");
+		
+		HttpURLConnection con = (HttpURLConnection)url.openConnection();
+		con.setRequestMethod("POST");
+		
+		con.setRequestProperty("Content-Type", "application/json; utf-8");
+		con.setRequestProperty("Accept", "application/json");
+		
+		con.setDoOutput(true);
+		
+		//JSON String need to be constructed for the specific resource. 
+		//We may construct complex JSON using any third-party JSON libraries such as jackson or org.json
+		String jsonInputString = "{\"name\": \"Upendra\", \"job\": \"Programmer\"}";
+		
+		try(OutputStream os = con.getOutputStream()){
+			byte[] input = jsonInputString.getBytes("utf-8");
+			os.write(input, 0, input.length);			
+		}
+
+		int code = con.getResponseCode();
+		System.out.println(code);
+		
+		try(BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream(), "utf-8"))){
+			StringBuilder response = new StringBuilder();
+			String responseLine = null;
+			while ((responseLine = br.readLine()) != null) {
+				response.append(responseLine.trim());
+			}
+			System.out.println(response.toString());
+		}
+	}
+
+}

core-kotlin-2/README.md

@@ -1 +1,3 @@
 ## Relevant articles:
+
+- [Void Type in Kotlin](https://www.baeldung.com/kotlin-void-type)

core-kotlin-2/src/test/kotlin/stringcomparison/StringComparisonTest.kt

@@ -0,0 +1,47 @@
+package stringcomparison
+
+import org.junit.Test
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class StringComparisonUnitTest {
+
+    @Test
+    fun `compare using equals operator`() {
+        val first = "kotlin"
+        val second = "kotlin"
+        val firstCapitalized = "KOTLIN"
+        assertTrue { first == second }
+        assertFalse { first == firstCapitalized }
+    }
+
+    @Test
+    fun `compare using referential equals operator`() {
+        val first = "kotlin"
+        val second = "kotlin"
+        val copyOfFirst = buildString { "kotlin" }
+        assertTrue { first === second }
+        assertFalse { first === copyOfFirst }
+    }
+
+    @Test
+    fun `compare using equals method`() {
+        val first = "kotlin"
+        val second = "kotlin"
+        val firstCapitalized = "KOTLIN"
+        assertTrue { first.equals(second) }
+        assertFalse { first.equals(firstCapitalized) }
+        assertTrue { first.equals(firstCapitalized, true) }
+    }
+
+    @Test
+    fun `compare using compare method`() {
+        val first = "kotlin"
+        val second = "kotlin"
+        val firstCapitalized = "KOTLIN"
+        assertTrue { first.compareTo(second) == 0 }
+        assertTrue { first.compareTo(firstCapitalized) == 32 }
+        assertTrue { firstCapitalized.compareTo(first) == -32 }
+        assertTrue { first.compareTo(firstCapitalized, true) == 0 }
+    }
+}

core-kotlin/src/main/kotlin/com/baeldung/kotlin/dsl/SqlDsl.kt

@@ -0,0 +1,114 @@
+package com.baeldung.kotlin.dsl
+
+abstract class Condition {
+
+    fun and(initializer: Condition.() -> Unit) {
+        addCondition(And().apply(initializer))
+    }
+
+    fun or(initializer: Condition.() -> Unit) {
+        addCondition(Or().apply(initializer))
+    }
+
+    infix fun String.eq(value: Any?) {
+        addCondition(Eq(this, value))
+    }
+
+    protected abstract fun addCondition(condition: Condition)
+}
+
+open class CompositeCondition(private val sqlOperator: String) : Condition() {
+    private val conditions = mutableListOf<Condition>()
+
+    override fun addCondition(condition: Condition) {
+        conditions += condition
+    }
+
+    override fun toString(): String {
+        return if (conditions.size == 1) {
+            conditions.first().toString()
+        } else {
+            conditions.joinToString(prefix = "(", postfix = ")", separator = " $sqlOperator ") {
+                "$it"
+            }
+        }
+    }
+}
+
+class And : CompositeCondition("and")
+
+class Or : CompositeCondition("or")
+
+class Eq(private val column: String, private val value: Any?) : Condition() {
+
+    init {
+        if (value != null && value !is Number && value !is String) {
+            throw IllegalArgumentException("Only <null>, numbers and strings values can be used in the 'where' clause")
+        }
+    }
+
+    override fun addCondition(condition: Condition) {
+        throw IllegalStateException("Can't add a nested condition to the sql 'eq'")
+    }
+
+    override fun toString(): String {
+        return when (value) {
+            null -> "$column is null"
+            is String -> "$column = '$value'"
+            else -> "$column = $value"
+        }
+    }
+}
+
+class SqlSelectBuilder {
+
+    private val columns = mutableListOf<String>()
+    private lateinit var table: String
+    private var condition: Condition? = null
+
+    fun select(vararg columns: String) {
+        if (columns.isEmpty()) {
+            throw IllegalArgumentException("At least one column should be defined")
+        }
+        if (this.columns.isNotEmpty()) {
+            throw IllegalStateException("Detected an attempt to re-define columns to fetch. Current columns list: "
+                                        + "${this.columns}, new columns list: $columns")
+        }
+        this.columns.addAll(columns)
+    }
+
+    fun from(table: String) {
+        this.table = table
+    }
+
+    fun where(initializer: Condition.() -> Unit) {
+        condition = And().apply(initializer)
+    }
+
+    fun build(): String {
+        if (!::table.isInitialized) {
+            throw IllegalStateException("Failed to build an sql select - target table is undefined")
+        }
+        return toString()
+    }
+
+    override fun toString(): String {
+        val columnsToFetch =
+                if (columns.isEmpty()) {
+                    "*"
+                } else {
+                    columns.joinToString(", ")
+                }
+        val conditionString =
+                if (condition == null) {
+                    ""
+                } else {
+                    " where $condition"
+                }
+        return "select $columnsToFetch from $table$conditionString"
+    }
+}
+
+fun query(initializer: SqlSelectBuilder.() -> Unit): SqlSelectBuilder {
+    return SqlSelectBuilder().apply(initializer)
+}

core-kotlin/src/test/kotlin/com/baeldung/kotlin/dsl/SqlDslTest.kt

@@ -0,0 +1,74 @@
+package com.baeldung.kotlin.dsl
+
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.Test
+import java.lang.Exception
+
+class SqlDslTest {
+
+    @Test
+    fun `when no columns are specified then star is used`() {
+        doTest("select * from table1") {
+            from ("table1")
+        }
+    }
+
+    @Test
+    fun `when no condition is specified then correct query is built`() {
+        doTest("select column1, column2 from table1") {
+            select("column1", "column2")
+            from ("table1")
+        }
+    }
+
+    @Test(expected = Exception::class)
+    fun `when no table is specified then an exception is thrown`() {
+        query {
+            select("column1")
+        }.build()
+    }
+
+    @Test
+    fun `when a list of conditions is specified then it's respected`() {
+        doTest("select * from table1 where (column3 = 4 and column4 is null)") {
+            from ("table1")
+            where {
+                "column3" eq 4
+                "column4" eq null
+            }
+        }
+    }
+
+    @Test
+    fun `when 'or' conditions are specified then they are respected`() {
+        doTest("select * from table1 where (column3 = 4 or column4 is null)") {
+            from ("table1")
+            where {
+                or {
+                    "column3" eq 4
+                    "column4" eq null
+                }
+            }
+        }
+    }
+
+    @Test
+    fun `when either 'and' or 'or' conditions are specified then they are respected`() {
+        doTest("select * from table1 where ((column3 = 4 or column4 is null) and column5 = 42)") {
+            from ("table1")
+            where {
+                and {
+                    or {
+                        "column3" eq 4
+                        "column4" eq null
+                    }
+                    "column5" eq 42
+                }
+            }
+        }
+    }
+
+    private fun doTest(expected: String, sql: SqlSelectBuilder.() -> Unit) {
+        assertThat(query(sql).build()).isEqualTo(expected)
+    }
+}

couchbase/pom.xml

@@ -25,7 +25,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>${jackson-version}</version>
+            <version>${jackson.version}</version>
         </dependency>
         <!-- Spring Context for Dependency Injection -->
         <dependency>
@@ -70,7 +70,6 @@
         <couchbase.client.version>2.5.0</couchbase.client.version>
         <spring-framework.version>4.3.5.RELEASE</spring-framework.version>
         <commons-lang3.version>3.5</commons-lang3.version>
-        <jackson-version>2.9.7</jackson-version>
     </properties>
 
 </project>

ddd/pom.xml

@@ -9,10 +9,10 @@
     <description>DDD series examples</description>
 
     <parent>
-        <groupId>org.springframework.boot</groupId>
+        <artifactId>parent-boot-2</artifactId>
-        <artifactId>spring-boot-starter-parent</artifactId>
+        <groupId>com.baeldung</groupId>
-        <version>2.0.6.RELEASE</version>
+        <version>0.0.1-SNAPSHOT</version>
-        <relativePath /> <!-- lookup parent from repository -->
+        <relativePath>../parent-boot-2</relativePath>
     </parent>
 
     <dependencies>
@@ -86,6 +86,7 @@
     <properties>
         <joda-money.version>1.0.1</joda-money.version>
         <maven-surefire-plugin.version>2.22.0</maven-surefire-plugin.version>
+        <spring-boot.version>2.0.6.RELEASE</spring-boot.version>
     </properties>
 	
 </project>

ddd/src/test/java/com/baeldung/ddd/order/OrderUnitTest.java

@@ -11,7 +11,7 @@ import org.joda.money.Money;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
-class OrderTest {
+class OrderUnitTest {
     @DisplayName("given order with two items, when calculate total cost, then sum is returned")
     @Test
     void test0() throws Exception {

ddd/src/test/java/com/baeldung/ddd/order/jpa/ViolateOrderBusinessRulesUnitTest.java

@@ -7,7 +7,7 @@ import java.math.BigDecimal;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
-public class ViolateOrderBusinessRulesTest {
+public class ViolateOrderBusinessRulesUnitTest {
     @DisplayName("given two non-zero order line items, when create an order with them, it's possible to set total cost to zero")
     @Test
     void test() throws Exception {

ethereum/pom.xml

@@ -208,15 +208,12 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <java.version>1.8</java.version>
         <tomcat.version>8.5.4</tomcat.version>
         <ethereumj-core.version>1.5.0-RELEASE</ethereumj-core.version>
         <web3j.core.version>3.3.1</web3j.core.version>
         <spring.boot.version>1.5.6.RELEASE</spring.boot.version>
         <mockito.version>2.21.0</mockito.version>
-        <jackson-databind.version>2.9.7</jackson-databind.version>
         <hamcrest.version>1.3</hamcrest.version>
-        <jackson.version>2.9.7</jackson.version>
         <javax-jsp.version>2.3.1</javax-jsp.version>
         <javax-servlet.version>3.1.0</javax-servlet.version>
         <jsonpath.version>2.4.0</jsonpath.version>

feign/pom.xml

@@ -56,7 +56,6 @@
 
     <properties>
         <feign.version>9.4.0</feign.version>
-        <lombok.version>1.16.12</lombok.version>
         <spring-boot-maven-plugin.version>1.4.2.RELEASE</spring-boot-maven-plugin.version>
     </properties>
 

geotools/pom.xml

@@ -33,24 +33,11 @@
 	</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>
 
 	<properties>

gson/src/test/java/org/baeldung/gson/conversion/JsonObjectConversionsUnitTest.java

@@ -0,0 +1,33 @@
+package org.baeldung.gson.conversion;
+
+import com.google.gson.*;
+import org.junit.Assert;
+import org.junit.jupiter.api.Test;
+
+public class JsonObjectConversionsUnitTest {
+
+    @Test
+    void whenUsingJsonParser_thenConvertToJsonObject() throws Exception {
+        // Example 1: Using JsonParser
+        String json = "{ \"name\": \"Baeldung\", \"java\": true }";
+        
+        JsonObject jsonObject = new JsonParser().parse(json).getAsJsonObject();
+        
+        Assert.assertTrue(jsonObject.isJsonObject());
+        Assert.assertTrue(jsonObject.get("name").getAsString().equals("Baeldung"));
+        Assert.assertTrue(jsonObject.get("java").getAsBoolean() == true);
+    }
+
+    @Test
+    void whenUsingGsonInstanceFromJson_thenConvertToJsonObject() throws Exception {
+        // Example 2: Using fromJson
+        String json = "{ \"name\": \"Baeldung\", \"java\": true }";
+        
+        JsonObject convertedObject = new Gson().fromJson(json, JsonObject.class);
+        
+        Assert.assertTrue(convertedObject.isJsonObject());
+        Assert.assertTrue(convertedObject.get("name").getAsString().equals("Baeldung"));
+        Assert.assertTrue(convertedObject.get("java").getAsBoolean() == true);
+    }
+
+}

guest/spring-boot-app/src/test/java/com/stackify/test/EmployeeControllerUnitTest.java

@@ -21,7 +21,7 @@ import com.stackify.Application;
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = Application.class)
 @WebAppConfiguration
-public class EmployeeControllerTest {
+public class EmployeeControllerUnitTest {
 
     private static final String CONTENT_TYPE = "application/json;charset=UTF-8";
 

jackson/pom.xml

@@ -117,8 +117,6 @@
     </build>
 
     <properties>
-        <!-- marshalling -->
-        <jackson.version>2.9.7</jackson.version>
         <!-- util -->
         <commons-lang3.version>3.8</commons-lang3.version>
         <joda-time.version>2.10</joda-time.version>

jackson/src/test/java/com/baeldung/jackson/dtos/Address.java

@@ -1,16 +1,9 @@
 package com.baeldung.jackson.dtos;
 
-import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
-
 public class Address {
 
-    @JacksonXmlProperty(localName = "street_number")
     String streetNumber;
-
-    @JacksonXmlProperty(localName = "street_name")
     String streetName;
-
-    @JacksonXmlProperty(localName = "city")
     String city;
 
     public String getStreetNumber() {

jackson/src/test/java/com/baeldung/jackson/dtos/Person.java

@@ -3,16 +3,13 @@ package com.baeldung.jackson.dtos;
 import java.util.ArrayList;
 import java.util.List;
 
-import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlElementWrapper;
 import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;
 
 @JacksonXmlRootElement(localName = "person")
 public final class Person {
     private String firstName;
     private String lastName;
-    @JacksonXmlElementWrapper(useWrapping = false)
     private List<String> phoneNumbers = new ArrayList<>();
-    @JacksonXmlElementWrapper(localName = "addresses")
     private List<Address> address = new ArrayList<>();
 
     public List<Address> getAddress() {
@@ -38,6 +35,7 @@ public final class Person {
     public void setLastName(String lastName) {
         this.lastName = lastName;
     }
+
     public List<String> getPhoneNumbers() {
         return phoneNumbers;
     }
@@ -46,6 +44,4 @@ public final class Person {
         this.phoneNumbers = phoneNumbers;
     }
 
-
-
 }

jackson/src/test/java/com/baeldung/jackson/xml/XMLSerializeDeserializeUnitTest.java

@@ -2,8 +2,10 @@ package com.baeldung.jackson.xml;
 
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
@@ -56,17 +58,14 @@ public class XMLSerializeDeserializeUnitTest {
     @Test
     public void whenJavaGotFromXmlStrWithCapitalElem_thenCorrect() throws IOException {
         XmlMapper xmlMapper = new XmlMapper();
-        SimpleBeanForCapitalizedFields value = xmlMapper.
+        SimpleBeanForCapitalizedFields value = xmlMapper.readValue("<SimpleBeanForCapitalizedFields><X>1</X><y>2</y></SimpleBeanForCapitalizedFields>", SimpleBeanForCapitalizedFields.class);
-            readValue("<SimpleBeanForCapitalizedFields><X>1</X><y>2</y></SimpleBeanForCapitalizedFields>",
-                SimpleBeanForCapitalizedFields.class);
         assertTrue(value.getX() == 1 && value.getY() == 2);
     }
 
     @Test
     public void whenJavaSerializedToXmlFileWithCapitalizedField_thenCorrect() throws IOException {
         XmlMapper xmlMapper = new XmlMapper();
-        xmlMapper.writeValue(new File("target/simple_bean_capitalized.xml"),
+        xmlMapper.writeValue(new File("target/simple_bean_capitalized.xml"), new SimpleBeanForCapitalizedFields());
-            new SimpleBeanForCapitalizedFields());
         File file = new File("target/simple_bean_capitalized.xml");
         assertNotNull(file);
     }
@@ -74,7 +73,9 @@ public class XMLSerializeDeserializeUnitTest {
     @Test
     public void whenJavaDeserializedFromXmlFile_thenCorrect() throws IOException {
         XmlMapper xmlMapper = new XmlMapper();
-        Person value = xmlMapper.readValue(new File("src/test/resources/person.xml"), Person.class);
+
+        String xml = "<person><firstName>Rohan</firstName><lastName>Daye</lastName><phoneNumbers><phoneNumbers>9911034731</phoneNumbers><phoneNumbers>9911033478</phoneNumbers></phoneNumbers><address><address><streetNumber>1</streetNumber><streetName>Name1</streetName><city>City1</city></address><address><streetNumber>2</streetNumber><streetName>Name2</streetName><city>City2</city></address></address></person>";
+        Person value = xmlMapper.readValue(xml, Person.class);
 
         assertTrue(value.getAddress()
             .get(0)
@@ -90,33 +91,38 @@ public class XMLSerializeDeserializeUnitTest {
     public void whenJavaSerializedToXmlFile_thenSuccess() throws IOException {
         XmlMapper xmlMapper = new XmlMapper();
 
+        String expectedXml = "<person><firstName>Rohan</firstName><lastName>Daye</lastName><phoneNumbers><phoneNumbers>9911034731</phoneNumbers><phoneNumbers>9911033478</phoneNumbers></phoneNumbers><address><address><streetNumber>1</streetNumber><streetName>Name1</streetName><city>City1</city></address><address><streetNumber>2</streetNumber><streetName>Name2</streetName><city>City2</city></address></address></person>";
+
         Person person = new Person();
 
         person.setFirstName("Rohan");
         person.setLastName("Daye");
 
         List<String> ph = new ArrayList<>();
-        ph.add("9911778981");
+        ph.add("9911034731");
-        ph.add("9991111111");
+        ph.add("9911033478");
         person.setPhoneNumbers(ph);
 
         List<Address> addresses = new ArrayList<>();
-        
+
         Address address1 = new Address();
         address1.setStreetNumber("1");
-        address1.setStreetName("streetname1");
+        address1.setStreetName("Name1");
-        address1.setCity("city1");
+        address1.setCity("City1");
-        
+
         Address address2 = new Address();
         address2.setStreetNumber("2");
-        address2.setStreetName("streetname2");
+        address2.setStreetName("Name2");
-        address2.setCity("city2");
+        address2.setCity("City2");
-        
+
         addresses.add(address1);
         addresses.add(address2);
+
         person.setAddress(addresses);
 
-        xmlMapper.writeValue(new File("src/test/resources/PersonGenerated.xml"), person);
+        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+        xmlMapper.writeValue(byteArrayOutputStream, person);
+        assertEquals(expectedXml, byteArrayOutputStream.toString());
     }
 
     private static String inputStreamToString(InputStream is) throws IOException {

jackson/src/test/resources/PersonGenerated.xml

@@ -1,18 +0,0 @@
-<person>
-	<firstName></firstName>
-	<lastName></lastName>
-	<phoneNumbers>9911778981</phoneNumbers>
-	<phoneNumbers>9991111111</phoneNumbers>
-	<addresses>
-		<address>
-			<street_number>1</street_number>
-			<street_name>streetname1</street_name>
-			<city>city1</city>
-		</address>
-		<address>
-			<street_number>2</street_number>
-			<street_name>streetname2</street_name>
-			<city>city2</city>
-		</address>
-	</addresses>
-</person>

jackson/src/test/resources/person.xml

@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<person>
-	<firstName>Rohan</firstName>
-	<lastName>Daye</lastName>
-	<phoneNumbers>9911034731</phoneNumbers>
-	<phoneNumbers>9911033478</phoneNumbers>
-	<addresses>
-		<address>
-			<street_number>1</street_number>
-			<street_name>Name1</street_name>
-			<city>City1</city>
-		</address>
-		<address>
-			<street_number>2</street_number>
-			<street_name>Name2</street_name>
-			<city>City2</city>
-		</address>
-	</addresses>
-</person>

java-dates/pom.xml

@@ -76,7 +76,6 @@
     <properties>
         <!-- util -->
         <commons-lang3.version>3.5</commons-lang3.version>
-        <lombok.version>1.16.12</lombok.version>
         <joda-time.version>2.10</joda-time.version>
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>

java-ee-8-security-api/pom.xml

@@ -58,6 +58,13 @@
         </plugins>
     </build>
 
+    <modules>
+        <module>app-auth-basic-store-db</module>
+        <module>app-auth-form-store-ldap</module>
+        <module>app-auth-custom-form-store-custom</module>
+        <module>app-auth-custom-no-store</module>
+    </modules>
+
     <properties>
         <defaultHttpPort>9080</defaultHttpPort>
         <defaultHttpsPort>9443</defaultHttpsPort>
@@ -70,11 +77,4 @@
         <maven-war-plugin.version>3.2.2</maven-war-plugin.version>
     </properties>
 
-    <modules>
-        <module>app-auth-basic-store-db</module>
-        <module>app-auth-form-store-ldap</module>
-        <module>app-auth-custom-form-store-custom</module>
-        <module>app-auth-custom-no-store</module>
-    </modules>
-
 </project>

java-lite/pom.xml

@@ -95,7 +95,6 @@
         <activeweb.version>1.15</activeweb.version>
         <mysql.connector.java.version>5.1.45</mysql.connector.java.version>
         <sun.tools.version>1.7.0</sun.tools.version>
-        <jackson.version>2.9.7</jackson.version>
         <activeweb-testing.version>1.15</activeweb-testing.version>
     </properties>
 

java-streams/pom.xml

@@ -108,7 +108,6 @@
         <!-- util -->
         <jmh.version>1.21</jmh.version>
         <commons-lang3.version>3.5</commons-lang3.version>
-        <lombok.version>1.16.12</lombok.version>
         <vavr.version>0.9.0</vavr.version>
         <protonpack.version>1.15</protonpack.version>
         <streamex.version>0.6.5</streamex.version>

java-streams/src/main/java/com/baeldung/reduce/application/Application.java

@@ -0,0 +1,70 @@
+package com.baeldung.reduce.application;
+
+import com.baeldung.reduce.entities.User;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.Warmup;
+
+public class Application {
+
+    public static void main(String[] args) throws Exception {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        int result1 = numbers.stream().reduce(0, (subtotal, element) -> subtotal + element);
+        System.out.println(result1);
+
+        int result2 = numbers.stream().reduce(0, Integer::sum);
+        System.out.println(result2);
+
+        List<String> letters = Arrays.asList("a", "b", "c", "d", "e");
+        String result3 = letters.stream().reduce("", (partialString, element) -> partialString + element);
+        System.out.println(result3);
+
+        String result4 = letters.stream().reduce("", String::concat);
+        System.out.println(result4);
+        
+        String result5 = letters.stream().reduce("", (partialString, element) -> partialString.toUpperCase() + element.toUpperCase());
+        System.out.println(result5);
+        
+        List<User> users = Arrays.asList(new User("John", 30), new User("Julie", 35));
+        int result6 = users.stream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+        System.out.println(result6);
+
+        String result7 = letters.parallelStream().reduce("", String::concat);
+        System.out.println(result7);
+
+        int result8 = users.parallelStream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+        System.out.println(result8);
+
+        org.openjdk.jmh.Main.main(args);
+        
+    }
+    
+    @Benchmark
+    @Fork(value = 1, warmups = 2)
+    @Warmup(iterations = 2) 
+    @BenchmarkMode(Mode.AverageTime)
+    public void executeReduceOnParallelizedStream() {
+        List<User> userList = new ArrayList<>();
+        for (int i = 0; i <= 1000000; i++) {
+            userList.add(new User("John" + i, i));
+        }
+        userList.parallelStream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+    }
+    
+    @Benchmark
+    @Fork(value = 1, warmups = 2)
+    @Warmup(iterations = 2) 
+    @BenchmarkMode(Mode.AverageTime)
+    public void executeReduceOnSequentialStream() {
+        List<User> userList = new ArrayList<>();
+        for (int i = 0; i <= 1000000; i++) {
+            userList.add(new User("John" + i, i));
+        }
+        userList.stream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+    }
+}

java-streams/src/main/java/com/baeldung/reduce/entities/User.java

@@ -0,0 +1,25 @@
+package com.baeldung.reduce.entities;
+
+public class User {
+
+    private final String name;
+    private final int age;
+
+    public User(String name, int age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getAge() {
+        return age;
+    }
+    
+    @Override
+    public String toString() {
+        return "User{" + "name=" + name + ", age=" + age + '}';
+    }
+}

java-streams/src/main/java/com/baeldung/reduce/utilities/NumberUtils.java

@@ -0,0 +1,52 @@
+package com.baeldung.reduce.utilities;
+
+import java.util.List;
+import java.util.function.BiFunction;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public abstract class NumberUtils {
+
+    private static final Logger LOGGER = Logger.getLogger(NumberUtils.class.getName());
+
+    public static int divideListElements(List<Integer> values, Integer divider) {
+        return values.stream()
+                .reduce(0, (a, b) -> {
+                    try {
+                        return a / divider + b / divider;
+                    } catch (ArithmeticException e) {
+                        LOGGER.log(Level.INFO, "Arithmetic Exception: Division by Zero");
+                    }
+                    return 0;
+                });
+    }
+    
+    public static int divideListElementsWithExtractedTryCatchBlock(List<Integer> values, int divider) {
+        return values.stream().reduce(0, (a, b) -> divide(a, divider) + divide(b, divider));
+    }
+    
+    public static int divideListElementsWithApplyFunctionMethod(List<Integer> values, int divider) {
+        BiFunction<Integer, Integer, Integer> division = (a, b) -> a / b;
+        return values.stream().reduce(0, (a, b) -> applyFunction(division, a, divider) + applyFunction(division, b, divider));
+    }
+    
+    private static int divide(int value, int factor) {
+        int result = 0;
+        try {
+            result = value / factor;
+        } catch (ArithmeticException e) {
+            LOGGER.log(Level.INFO, "Arithmetic Exception: Division by Zero");
+        }
+        return result;
+    }
+    
+    private static int applyFunction(BiFunction<Integer, Integer, Integer> function, int a, int b) {
+        try {
+            return function.apply(a, b);
+        }
+        catch(Exception e) {
+            LOGGER.log(Level.INFO, "Exception occurred!");
+        }
+        return 0;
+    }
+}

java-streams/src/test/java/com/baeldung/reduce/tests/StreamReduceUnitTest.java

@@ -0,0 +1,79 @@
+package com.baeldung.reduce.tests;
+
+import com.baeldung.reduce.entities.User;
+import com.baeldung.reduce.utilities.NumberUtils;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import static org.assertj.core.api.Assertions.assertThat;
+import org.junit.Test;
+
+public class StreamReduceUnitTest {
+
+    @Test
+    public void givenIntegerList_whenReduceWithSumAccumulatorLambda_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        int result = numbers.stream().reduce(0, (a, b) -> a + b);
+        assertThat(result).isEqualTo(21);
+    }
+
+    @Test
+    public void givenIntegerList_whenReduceWithSumAccumulatorMethodReference_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        int result = numbers.stream().reduce(0, Integer::sum);
+        assertThat(result).isEqualTo(21);
+    }
+
+    @Test
+    public void givenStringList_whenReduceWithConcatenatorAccumulatorLambda_thenCorrect() {
+        List<String> letters = Arrays.asList("a", "b", "c", "d", "e");
+        String result = letters.stream().reduce("", (a, b) -> a + b);
+        assertThat(result).isEqualTo("abcde");
+    }
+
+    @Test
+    public void givenStringList_whenReduceWithConcatenatorAccumulatorMethodReference_thenCorrect() {
+        List<String> letters = Arrays.asList("a", "b", "c", "d", "e");
+        String result = letters.stream().reduce("", String::concat);
+        assertThat(result).isEqualTo("abcde");
+    }
+
+    @Test
+    public void givenStringList_whenReduceWithUppercaseConcatenatorAccumulator_thenCorrect() {
+        List<String> letters = Arrays.asList("a", "b", "c", "d", "e");
+        String result = letters.stream().reduce("", (a, b) -> a.toUpperCase() + b.toUpperCase());
+        assertThat(result).isEqualTo("ABCDE");
+    }
+
+    @Test
+    public void givenUserList_whenReduceWithAgeAccumulatorAndSumCombiner_thenCorrect() {
+        List<User> users = Arrays.asList(new User("John", 30), new User("Julie", 35));
+        int result = users.stream().reduce(0, (partialAgeResult, user) -> partialAgeResult + user.getAge(), Integer::sum);
+        assertThat(result).isEqualTo(65);
+    }
+
+    @Test
+    public void givenStringList_whenReduceWithParallelStream_thenCorrect() {
+        List<String> letters = Arrays.asList("a", "b", "c", "d", "e");
+        String result = letters.parallelStream().reduce("", String::concat);
+        assertThat(result).isEqualTo("abcde");
+    }
+
+    @Test
+    public void givenNumberUtilsClass_whenCalledDivideListElements_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        assertThat(NumberUtils.divideListElements(numbers, 1)).isEqualTo(21);
+    }
+
+    @Test
+    public void givenNumberUtilsClass_whenCalledDivideListElementsWithExtractedTryCatchBlock_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        assertThat(NumberUtils.divideListElementsWithExtractedTryCatchBlock(numbers, 1)).isEqualTo(21);
+    }
+
+    @Test
+    public void givenStream_whneCalleddivideListElementsWithApplyFunctionMethod_thenCorrect() {
+        List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6);
+        assertThat(NumberUtils.divideListElementsWithApplyFunctionMethod(numbers, 1)).isEqualTo(21);
+    }
+}

javaxval/pom.xml

@@ -55,8 +55,7 @@
         <validation-api.version>2.0.1.Final</validation-api.version>
         <hibernate-validator.version>6.0.13.Final</hibernate-validator.version>
         <javax.el.version>3.0.0</javax.el.version>    
-        <org.springframework.version>5.0.2.RELEASE</org.springframework.version>        
+        <org.springframework.version>5.0.2.RELEASE</org.springframework.version>
-        <junit.version>4.12</junit.version>
         <assertj.version>3.11.1</assertj.version>
     </properties>    
 </project>

jhipster/jhipster-monolithic/src/main/java/com/baeldung/security/AuthoritiesConstants.java

@@ -7,6 +7,8 @@ public final class AuthoritiesConstants {
 
     public static final String ADMIN = "ROLE_ADMIN";
 
+    public static final String MANAGER = "ROLE_MANAGER";
+
     public static final String USER = "ROLE_USER";
 
     public static final String ANONYMOUS = "ROLE_ANONYMOUS";

jhipster/jhipster-monolithic/src/main/resources/config/liquibase/authorities.csv

@@ -1,3 +1,4 @@
 name
 ROLE_ADMIN
+ROLE_MANAGER
 ROLE_USER

jhipster/jhipster-uaa/pom.xml

@@ -2,9 +2,8 @@
 <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
     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.jhipster</groupId>
+    <artifactId>jhipster-uaa</artifactId>
-    <artifactId>jhipster-microservice-uaa</artifactId>
+    <name>jhipster-uaa</name>
-    <name>JHipster Microservice with UAA</name>
     <packaging>pom</packaging>
 
 	<parent>

jib/pom.xml

@@ -39,7 +39,6 @@
     </build>
 
     <properties>
-        <java.version>1.8</java.version>
 		<jib-maven-plugin.version>0.9.10</jib-maven-plugin.version>
     </properties>
 </project>

json/pom.xml

@@ -42,7 +42,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>${jackson-databind.version}</version>
+            <version>${jackson.version}</version>
         </dependency>
 		<dependency>
             <groupId>javax.json.bind</groupId>
@@ -73,6 +73,12 @@
             <version>${commons-collections4.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj-core.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <properties>
@@ -83,9 +89,8 @@
         <yasson.version>1.0.1</yasson.version>
 		<json.version>20171018</json.version>
 		<gson.version>2.8.5</gson.version>
-		<jackson-databind.version>2.9.7</jackson-databind.version>
-		<junit.version>4.12</junit.version>
 		<javax.version>1.1.2</javax.version>
+		<assertj-core.version>3.11.1</assertj-core.version>
     </properties>
 
 </project>

json/src/main/java/com/baeldung/jsonobject/iterate/JSONObjectIterator.java

@@ -0,0 +1,50 @@
+package com.baeldung.jsonobject.iterate;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+public class JSONObjectIterator {
+
+    private Map<String, Object> keyValuePairs;
+
+    public JSONObjectIterator() {
+        keyValuePairs = new HashMap<>();
+    }
+
+    public void handleValue(String key, Object value) {
+        if (value instanceof JSONArray) {
+            handleJSONArray(key, (JSONArray) value);
+        } else if (value instanceof JSONObject) {
+            handleJSONObject((JSONObject) value);
+        }
+        keyValuePairs.put(key, value);
+    }
+
+    public void handleJSONObject(JSONObject jsonObject) {
+        Iterator<String> jsonObjectIterator = jsonObject.keys();
+        jsonObjectIterator.forEachRemaining(key -> {
+            Object value = jsonObject.get(key);
+            handleValue(key, value);
+        });
+    }
+
+    public void handleJSONArray(String key, JSONArray jsonArray) {
+        Iterator<Object> jsonArrayIterator = jsonArray.iterator();
+        jsonArrayIterator.forEachRemaining(element -> {
+            handleValue(key, element);
+        });
+    }
+
+    public Map<String, Object> getKeyValuePairs() {
+        return keyValuePairs;
+    }
+
+    public void setKeyValuePairs(Map<String, Object> keyValuePairs) {
+        this.keyValuePairs = keyValuePairs;
+    }
+
+}

json/src/test/java/com/baeldung/jsonobject/iterate/JSONObjectIteratorUnitTest.java

@@ -0,0 +1,79 @@
+package com.baeldung.jsonobject.iterate;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.Map;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+import org.junit.Test;
+
+public class JSONObjectIteratorUnitTest {
+
+    private JSONObjectIterator jsonObjectIterator = new JSONObjectIterator();
+
+    @Test
+    public void givenJSONObject_whenIterating_thenGetKeyValuePairs() {
+        JSONObject jsonObject = getJsonObject();
+
+        jsonObjectIterator.handleJSONObject(jsonObject);
+
+        Map<String, Object> keyValuePairs = jsonObjectIterator.getKeyValuePairs();
+        assertThat(keyValuePairs.get("rType")).isEqualTo("Regular");
+        assertThat(keyValuePairs.get("rId")).isEqualTo("1001");
+        assertThat(keyValuePairs.get("cType")).isEqualTo("Chocolate");
+        assertThat(keyValuePairs.get("cId")).isEqualTo("1002");
+        assertThat(keyValuePairs.get("bType")).isEqualTo("BlueBerry");
+        assertThat(keyValuePairs.get("bId")).isEqualTo("1003");
+        assertThat(keyValuePairs.get("name")).isEqualTo("Cake");
+        assertThat(keyValuePairs.get("cakeId")).isEqualTo("0001");
+        assertThat(keyValuePairs.get("type")).isEqualTo("donut");
+        assertThat(keyValuePairs.get("Type")).isEqualTo("Maple");
+        assertThat(keyValuePairs.get("tId")).isEqualTo("5001");
+        assertThat(keyValuePairs.get("batters")
+            .toString()).isEqualTo("[{\"rType\":\"Regular\",\"rId\":\"1001\"},{\"cType\":\"Chocolate\",\"cId\":\"1002\"},{\"bType\":\"BlueBerry\",\"bId\":\"1003\"}]");
+        assertThat(keyValuePairs.get("cakeShapes")
+            .toString()).isEqualTo("[\"square\",\"circle\",\"heart\"]");
+        assertThat(keyValuePairs.get("topping")
+            .toString()).isEqualTo("{\"Type\":\"Maple\",\"tId\":\"5001\"}");
+    }
+
+    private JSONObject getJsonObject() {
+        JSONObject cake = new JSONObject();
+        cake.put("cakeId", "0001");
+        cake.put("type", "donut");
+        cake.put("name", "Cake");
+
+        JSONArray batters = new JSONArray();
+        JSONObject regular = new JSONObject();
+        regular.put("rId", "1001");
+        regular.put("rType", "Regular");
+        batters.put(regular);
+        JSONObject chocolate = new JSONObject();
+        chocolate.put("cId", "1002");
+        chocolate.put("cType", "Chocolate");
+        batters.put(chocolate);
+        JSONObject blueberry = new JSONObject();
+        blueberry.put("bId", "1003");
+        blueberry.put("bType", "BlueBerry");
+        batters.put(blueberry);
+
+        JSONArray cakeShapes = new JSONArray();
+        cakeShapes.put("square");
+        cakeShapes.put("circle");
+        cakeShapes.put("heart");
+
+        cake.put("cakeShapes", cakeShapes);
+
+        cake.put("batters", batters);
+
+        JSONObject topping = new JSONObject();
+        topping.put("tId", "5001");
+        topping.put("Type", "Maple");
+
+        cake.put("topping", topping);
+
+        return cake;
+    }
+
+}

jta/pom.xml

@@ -10,10 +10,10 @@
     <description>JEE JTA demo</description>
 
     <parent>
-        <groupId>org.springframework.boot</groupId>
+        <artifactId>parent-boot-2</artifactId>
-        <artifactId>spring-boot-starter-parent</artifactId>
+        <groupId>com.baeldung</groupId>
-        <version>2.0.4.RELEASE</version>
+        <version>0.0.1-SNAPSHOT</version>
-        <relativePath/>
+        <relativePath>../parent-boot-2</relativePath>
     </parent>
 
     <dependencies>
@@ -85,5 +85,6 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>1.8</java.version>
 		<hsqldb.version>2.4.1</hsqldb.version>
+        <spring-boot.version>2.0.4.RELEASE</spring-boot.version>
     </properties>
 </project>

libraries-data/pom.xml

@@ -434,7 +434,6 @@
         <kryo.version>4.0.1</kryo.version>
         <h2.version>1.4.196</h2.version>
         <reladomo.version>16.5.1</reladomo.version>
-        <junit.version>4.12</junit.version>
         <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
         <ormlite.version>5.0</ormlite.version>
         <kafka.version>1.0.0</kafka.version>

libraries-security/pom.xml

@@ -51,7 +51,6 @@
     </dependencies>
 
     <properties>
-        <junit.version>4.12</junit.version>
         <spring-boot-maven-plugin.version>2.0.4.RELEASE</spring-boot-maven-plugin.version>
         <scribejava.version>5.6.0</scribejava.version>
 		<spring-security-oauth2.version>2.3.3.RELEASE</spring-security-oauth2.version>

libraries-server/pom.xml

@@ -105,7 +105,6 @@
         <jetty.version>9.4.8.v20171121</jetty.version>
         <netty.version>4.1.20.Final</netty.version>
         <commons.collections.version>4.1</commons.collections.version>
-        <junit.version>4.12</junit.version>
         <tomcat.version>8.5.24</tomcat.version>
         <smack.version>4.3.1</smack.version>
 		<eclipse.paho.client.mqttv3.version>1.2.0</eclipse.paho.client.mqttv3.version>

libraries/pom.xml

@@ -223,6 +223,12 @@
             <artifactId>serenity-spring</artifactId>
             <version>${serenity.version}</version>
             <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.springframework</groupId>
+                    <artifactId>spring-test</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
         <dependency>
             <groupId>net.serenity-bdd</groupId>
@@ -318,6 +324,12 @@
             <artifactId>pact-jvm-consumer-junit_2.11</artifactId>
             <version>${pact.version}</version>
             <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.codehaus.groovy</groupId>
+                    <artifactId>groovy-all</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
         <dependency>
             <groupId>org.codehaus.groovy</groupId>
@@ -675,6 +687,17 @@
             <version>${mockftpserver.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.asciidoctor</groupId>
+            <artifactId>asciidoctor-maven-plugin</artifactId>
+            <version>1.5.7.1</version>
+        </dependency>
+      	<!-- Reflections -->
+		<dependency>
+			<groupId>org.reflections</groupId>
+			<artifactId>reflections</artifactId>
+			<version>${reflections.version}</version>
+		</dependency>
 
     </dependencies>
 
@@ -687,10 +710,6 @@
             <name>bintray</name>
             <url>http://dl.bintray.com/cuba-platform/main</url>
         </repository>
-        <repository>
-            <id>Apache Staging</id>
-            <url>https://repository.apache.org/content/groups/staging</url>
-        </repository>
         <repository>
             <id>nm-repo</id>
             <name>Numerical Method's Maven Repository</name>
@@ -734,7 +753,7 @@
                     <api>JDO</api>
                     <props>${basedir}/datanucleus.properties</props>
                     <log4jConfiguration>${basedir}/log4j.properties</log4jConfiguration>
-                    <verbose>true</verbose>
+                    <verbose>false</verbose>
                     <fork>false</fork>
                     <!-- Solve windows line too long error -->
                 </configuration>
@@ -826,7 +845,6 @@
         <serenity.jira.version>1.9.0</serenity.jira.version>
         <serenity.plugin.version>1.9.27</serenity.plugin.version>
         <jUnitParams.version>1.1.0</jUnitParams.version>
-        <junit.version>4.12</junit.version>
         <java-lsh.version>0.10</java-lsh.version>
         <pact.version>3.5.0</pact.version>
         <awaitility.version>3.0.0</awaitility.version>
@@ -897,6 +915,8 @@
         <derive4j.version>1.1.0</derive4j.version>
         <mockftpserver.version>2.7.1</mockftpserver.version>
         <commons-net.version>3.6</commons-net.version>
+        <reflections.version>0.9.11</reflections.version>
+
     </properties>
 
 </project>

libraries/src/main/java/com/baeldung/derive4j/lazy/LazyRequest.java

@@ -6,7 +6,7 @@ import org.derive4j.Make;
 
 @Data(value = @Derive(
     inClass = "{ClassName}Impl",
-    make = {Make.lazyConstructor, Make.constructors}
+    make = {Make.lazyConstructor, Make.constructors, Make.getters}
 ))
 public interface LazyRequest {
     interface Cases<R>{

libraries/src/main/java/com/baeldung/reflections/ReflectionsApp.java

@@ -0,0 +1,71 @@
+package com.baeldung.reflections;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.util.Date;
+import java.util.Set;
+import java.util.regex.Pattern;
+
+import org.reflections.Reflections;
+import org.reflections.scanners.MethodAnnotationsScanner;
+import org.reflections.scanners.MethodParameterScanner;
+import org.reflections.scanners.ResourcesScanner;
+import org.reflections.scanners.Scanner;
+import org.reflections.scanners.SubTypesScanner;
+import org.reflections.util.ClasspathHelper;
+import org.reflections.util.ConfigurationBuilder;
+
+public class ReflectionsApp {
+
+    public Set<Class<? extends Scanner>> getReflectionsSubTypes() {
+        Reflections reflections = new Reflections("org.reflections");
+        Set<Class<? extends Scanner>> scannersSet = reflections.getSubTypesOf(Scanner.class);
+        return scannersSet;
+    }
+
+    public Set<Class<?>> getJDKFunctinalInterfaces() {
+        Reflections reflections = new Reflections("java.util.function");
+        Set<Class<?>> typesSet = reflections.getTypesAnnotatedWith(FunctionalInterface.class);
+        return typesSet;
+    }
+
+    public Set<Method> getDateDeprecatedMethods() {
+        Reflections reflections = new Reflections(java.util.Date.class, new MethodAnnotationsScanner());
+        Set<Method> deprecatedMethodsSet = reflections.getMethodsAnnotatedWith(Deprecated.class);
+        return deprecatedMethodsSet;
+    }
+
+    @SuppressWarnings("rawtypes")
+    public Set<Constructor> getDateDeprecatedConstructors() {
+        Reflections reflections = new Reflections(java.util.Date.class, new MethodAnnotationsScanner());
+        Set<Constructor> constructorsSet = reflections.getConstructorsAnnotatedWith(Deprecated.class);
+        return constructorsSet;
+    }
+
+    public Set<Method> getMethodsWithDateParam() {
+        Reflections reflections = new Reflections(java.text.SimpleDateFormat.class, new MethodParameterScanner());
+        Set<Method> methodsSet = reflections.getMethodsMatchParams(Date.class);
+        return methodsSet;
+    }
+
+    public Set<Method> getMethodsWithVoidReturn() {
+        Reflections reflections = new Reflections(java.text.SimpleDateFormat.class, new MethodParameterScanner());
+        Set<Method> methodsSet = reflections.getMethodsReturn(void.class);
+        return methodsSet;
+    }
+
+    public Set<String> getPomXmlPaths() {
+        Reflections reflections = new Reflections(new ResourcesScanner());
+        Set<String> resourcesSet = reflections.getResources(Pattern.compile(".*pom\\.xml"));
+        return resourcesSet;
+    }
+
+    public Set<Class<? extends Scanner>> getReflectionsSubTypesUsingBuilder() {
+        Reflections reflections = new Reflections(new ConfigurationBuilder().setUrls(ClasspathHelper.forPackage("org.reflections"))
+            .setScanners(new SubTypesScanner()));
+
+        Set<Class<? extends Scanner>> scannersSet = reflections.getSubTypesOf(Scanner.class);
+        return scannersSet;
+    }
+
+}

libraries/src/test/java/com/baeldung/google/sheets/GoogleSheetsLiveTest.java

@@ -26,7 +26,7 @@ import com.google.api.services.sheets.v4.model.ValueRange;
 
 import static org.assertj.core.api.Assertions.*;
 
-public class GoogleSheetsIntegrationTest {
+public class GoogleSheetsLiveTest {
 
     private static Sheets sheetsService;
 

libraries/src/test/java/com/baeldung/reflections/ReflectionsUnitTest.java

@@ -0,0 +1,50 @@
+package com.baeldung.reflections;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
+import org.junit.jupiter.api.Test;
+
+public class ReflectionsUnitTest {
+
+    @Test
+    public void givenTypeThenGetAllSubTypes() {
+        ReflectionsApp reflectionsApp = new ReflectionsApp();
+        assertFalse(reflectionsApp.getReflectionsSubTypes()
+            .isEmpty());
+    }
+
+    @Test
+    public void givenTypeAndUsingBuilderThenGetAllSubTypes() {
+        ReflectionsApp reflectionsApp = new ReflectionsApp();
+        assertFalse(reflectionsApp.getReflectionsSubTypesUsingBuilder()
+            .isEmpty());
+    }
+
+    @Test
+    public void givenAnnotationThenGetAllAnnotatedMethods() {
+        ReflectionsApp reflectionsApp = new ReflectionsApp();
+        assertFalse(reflectionsApp.getDateDeprecatedMethods()
+            .isEmpty());
+    }
+
+    @Test
+    public void givenAnnotationThenGetAllAnnotatedConstructors() {
+        ReflectionsApp reflectionsApp = new ReflectionsApp();
+        assertFalse(reflectionsApp.getDateDeprecatedConstructors()
+            .isEmpty());
+    }
+
+    @Test
+    public void givenParamTypeThenGetAllMethods() {
+        ReflectionsApp reflectionsApp = new ReflectionsApp();
+        assertFalse(reflectionsApp.getMethodsWithDateParam()
+            .isEmpty());
+    }
+
+    @Test
+    public void givenReturnTypeThenGetAllMethods() {
+        ReflectionsApp reflectionsApp = new ReflectionsApp();
+        assertFalse(reflectionsApp.getMethodsWithVoidReturn()
+            .isEmpty());
+    }
+}

libraries/src/test/java/com/baeldung/smooks/converter/SmooksIntegrationTest.java

@@ -12,9 +12,10 @@ import static org.junit.Assert.*;
 
 public class SmooksIntegrationTest {
 
-    private static final String EDIFACT_MESSAGE = "UNA:+.? '\r\n" + "UNH+771+IN_PROGRESS+2018-01-14'\r\n" + "CTA+CompanyX+1234567'\r\n" + "LIN+1+PX1234+9.99'\r\n" + "LIN+2+RX990+120.32'\r\n";
+    private static final String EDIFACT_MESSAGE = "UNA:+.? '" + System.lineSeparator() + "UNH+771+IN_PROGRESS+2018-01-14'" + System.lineSeparator() + "CTA+CompanyX+1234567'" + System.lineSeparator() + "LIN+1+PX1234+9.99'" + System.lineSeparator()
-    private static final String EMAIL_MESSAGE = "Hi,\r\n" + "Order number #771 created on 2018-01-14 is currently in IN_PROGRESS status.\r\n" + "Consider contact supplier \"CompanyX\"  with phone number: \"1234567\".\r\n" + "Order items:\r\n"
+        + "LIN+2+RX990+120.32'" + System.lineSeparator();
-            + "1  X PX1234 (total price 9.99)\r\n" + "2  X RX990 (total price 240.64)\r\n";
+    private static final String EMAIL_MESSAGE = "Hi," + System.lineSeparator() + "Order number #771 created on 2018-01-14 is currently in IN_PROGRESS status." + System.lineSeparator() + "Consider contact supplier \"CompanyX\"  with phone number: \"1234567\"."
+        + System.lineSeparator() + "Order items:" + System.lineSeparator() + "1  X PX1234 (total price 9.99)" + System.lineSeparator() + "2  X RX990 (total price 240.64)" + System.lineSeparator();
 
     @Test
     public void givenOrderXML_whenConvert_thenPOJOsConstructedCorrectly() throws Exception {
@@ -37,7 +38,10 @@ public class SmooksIntegrationTest {
 
         assertThat(validationResult.getErrors(), hasSize(1));
         // 1234567 didn't match ^[0-9\\-\\+]{9,15}$
-        assertThat(validationResult.getErrors().get(0).getFailRuleResult().getRuleName(), is("supplierPhone"));
+        assertThat(validationResult.getErrors()
+            .get(0)
+            .getFailRuleResult()
+            .getRuleName(), is("supplierPhone"));
     }
 
     @Test

lombok-custom/pom.xml

@@ -5,6 +5,7 @@
 
     <modelVersion>4.0.0</modelVersion>
     <artifactId>lombok-custom</artifactId>
+	<name>lombok-custom</name>
     <version>0.1-SNAPSHOT</version>
 
     <parent>

maven/.gitignore

@@ -1 +1,2 @@
-/output-resources
+/output-resources
+/.idea/

maven/custom-rule/pom.xml

@@ -0,0 +1,70 @@
+<?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">
+    <parent>
+        <artifactId>maven</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>custom-rule</artifactId>
+	<name>custom-rule</name>
+
+    <properties>
+        <api.version>3.0.0-M2</api.version>
+        <maven.version>2.0.9</maven.version>
+    </properties>
+
+
+    <dependencies>
+        <!-- dependencies for maven plugin-->
+        <dependency>
+            <groupId>org.apache.maven.enforcer</groupId>
+            <artifactId>enforcer-api</artifactId>
+            <version>${api.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-project</artifactId>
+            <version>${maven.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-core</artifactId>
+            <version>${maven.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-artifact</artifactId>
+            <version>${maven.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven</groupId>
+            <artifactId>maven-plugin-api</artifactId>
+            <version>${maven.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.codehaus.plexus</groupId>
+            <artifactId>plexus-container-default</artifactId>
+            <version>1.0-alpha-9</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-verifier-plugin</artifactId>
+                <version>${maven.verifier.version}</version>
+                <configuration>
+                    <verificationFile>../input-resources/verifications.xml</verificationFile>
+                    <failOnError>false</failOnError>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+
+
+
+</project>

maven/custom-rule/src/main/java/com/baeldung/enforcer/MyCustomRule.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2019 PloyRef
+ * Created by Seun Matt <smatt382@gmail.com>
+ * on 19 - 2 - 2019
+ */
+
+package com.baeldung.enforcer;
+
+import org.apache.maven.enforcer.rule.api.EnforcerRule;
+import org.apache.maven.enforcer.rule.api.EnforcerRuleException;
+import org.apache.maven.enforcer.rule.api.EnforcerRuleHelper;
+import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluationException;
+
+public class MyCustomRule implements EnforcerRule {
+
+    public void execute(EnforcerRuleHelper enforcerRuleHelper) throws EnforcerRuleException {
+
+        try {
+
+            String groupId = (String) enforcerRuleHelper.evaluate("${project.groupId}");
+
+            if (groupId == null || !groupId.startsWith("org.baeldung")) {
+                throw new EnforcerRuleException("Project group id does not start with org.baeldung");
+            }
+
+        }
+        catch (ExpressionEvaluationException ex ) {
+            throw new EnforcerRuleException( "Unable to lookup an expression " + ex.getLocalizedMessage(), ex );
+        }
+    }
+
+    public boolean isCacheable() {
+        return false;
+    }
+
+    public boolean isResultValid(EnforcerRule enforcerRule) {
+        return false;
+    }
+
+    public String getCacheId() {
+        return null;
+    }
+}

maven/maven-enforcer/pom.xml

@@ -0,0 +1,75 @@
+<?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">
+    <parent>
+        <artifactId>maven</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>maven-enforcer</artifactId>
+	<name>maven-enforcer</name>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-enforcer-plugin</artifactId>
+                <version>3.0.0-M2</version>
+                <!--<dependencies>-->
+                    <!--<dependency>-->
+                        <!--<groupId>com.baeldung</groupId>-->
+                        <!--<artifactId>custom-rule</artifactId>-->
+                        <!--<version>1.0</version>-->
+                    <!--</dependency>-->
+                <!--</dependencies>-->
+                <executions>
+                    <execution>
+                        <id>enforce</id>
+                        <goals>
+                            <goal>enforce</goal>
+                        </goals>
+                        <configuration>
+                            <rules>
+                                <banDuplicatePomDependencyVersions/>
+                                <requireMavenVersion>
+                                    <version>3.0</version>
+                                    <message>Invalid Maven version. It should, at least, be 3.0</message>
+                                </requireMavenVersion>
+                                <requireJavaVersion>
+                                    <version>1.8</version>
+                                </requireJavaVersion>
+                                <requireEnvironmentVariable>
+                                    <variableName>ui</variableName>
+                                    <level>WARN</level>
+                                </requireEnvironmentVariable>
+                                <requireEnvironmentVariable>
+                                    <variableName>cook</variableName>
+                                    <level>WARN</level>
+                                </requireEnvironmentVariable>
+                                <requireActiveProfile>
+                                    <profiles>local,base</profiles>
+                                    <message>Missing active profiles</message>
+                                    <level>WARN</level>
+                                </requireActiveProfile>
+                                <!--other rules -->
+                                <!--<myCustomRule implementation="com.baeldung.enforcer.MyCustomRule"/>-->
+                            </rules>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <artifactId>maven-verifier-plugin</artifactId>
+                <version>${maven.verifier.version}</version>
+                <configuration>
+                    <verificationFile>../input-resources/verifications.xml</verificationFile>
+                    <failOnError>false</failOnError>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+
+</project>

maven/pom.xml

@@ -4,8 +4,12 @@
     <groupId>com.baeldung</groupId>
     <artifactId>maven</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-	<name>maven</name>
+    <modules>
-    <packaging>war</packaging>
+        <module>custom-rule</module>
+        <module>maven-enforcer</module>
+    </modules>
+    <name>maven</name>
+    <packaging>pom</packaging>
 
     <dependencies>
         <dependency>

osgi/osgi-intro-sample-activator/pom.xml

@@ -3,6 +3,7 @@
     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>
     <artifactId>osgi-intro-sample-activator</artifactId>
+    <name>osgi-intro-sample-activator</name>
     <!-- Please, note this is not the usual 'jar'. -->
     <packaging>bundle</packaging>
 

osgi/osgi-intro-sample-client/pom.xml

@@ -5,6 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <!-- mvn:com.baeldung/osgi-intro-sample-client/1.0-SNAPSHOT -->
     <artifactId>osgi-intro-sample-client</artifactId>
+    <name>osgi-intro-sample-client</name>
     <packaging>bundle</packaging>
 
     <parent>

osgi/osgi-intro-sample-service/pom.xml

@@ -3,6 +3,7 @@
     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>
     <artifactId>osgi-intro-sample-service</artifactId>
+    <name>osgi-intro-sample-service</name>
     <!-- Please, note this is not the usual 'jar'. -->
     <packaging>bundle</packaging>
 

parent-boot-1/pom.xml

@@ -55,7 +55,7 @@
 
 	<properties>
 		<rest-assured.version>3.1.0</rest-assured.version>
-		<spring-boot.version>1.5.16.RELEASE</spring-boot.version>
+		<spring-boot.version>1.5.19.RELEASE</spring-boot.version>
 	</properties>
 	
 </project>

parent-boot-2/pom.xml

@@ -77,9 +77,7 @@
     <properties>
         <rest-assured.version>3.1.0</rest-assured.version>
         <!-- plugins -->
-        <thin.version>1.0.11.RELEASE</thin.version>
+        <thin.version>1.0.21.RELEASE</thin.version>
-        <spring-boot.version>2.1.1.RELEASE</spring-boot.version>
+        <spring-boot.version>2.1.3.RELEASE</spring-boot.version>
     </properties>
 </project>
-
-

parent-spring-4/pom.xml

@@ -29,7 +29,7 @@
     </dependencies>
 
     <properties>
-        <spring.version>4.3.20.RELEASE</spring.version>
+        <spring.version>4.3.22.RELEASE</spring.version>
         <junit.jupiter.version>5.0.2</junit.jupiter.version>
     </properties>
 

parent-spring-5/pom.xml

@@ -31,7 +31,6 @@
     <properties>
         <spring.version>5.1.2.RELEASE</spring.version>
         <junit.jupiter.version>5.0.2</junit.jupiter.version>
-        <jackson-databind.version>2.9.6</jackson-databind.version>
 		<jackson.version>2.9.6</jackson.version>
 		<spring-security.version>5.1.2.RELEASE</spring-security.version>
     </properties>

patterns/design-patterns/README.md

@@ -18,3 +18,4 @@
 - [Chain of Responsibility Design Pattern in Java](http://www.baeldung.com/chain-of-responsibility-pattern)
 - [The Command Pattern in Java](http://www.baeldung.com/java-command-pattern)
 - [Java Constructors vs Static Factory Methods](https://www.baeldung.com/java-constructors-vs-static-factory-methods)
+- [The Adapter Pattern in Java](https://www.baeldung.com/java-adapter-pattern)

patterns/solid/pom.xml

@@ -5,6 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung</groupId>
     <artifactId>solid</artifactId>
+    <name>solid</name>
     <version>1.0-SNAPSHOT</version>
 
  <parent>

persistence-modules/spring-boot-h2/spring-boot-h2-database/pom.xml

@@ -11,10 +11,10 @@
     <description>Demo Spring Boot applications that starts H2 in memory database</description>
 
     <parent>
-        <groupId>org.springframework.boot</groupId>
+        <artifactId>parent-boot-2</artifactId>
-        <artifactId>spring-boot-starter-parent</artifactId>
+        <groupId>com.baeldung</groupId>
-        <version>2.0.4.RELEASE</version>
+        <version>0.0.1-SNAPSHOT</version>
-        <relativePath/> <!-- lookup parent from repository -->
+        <relativePath>../../../parent-boot-2</relativePath>
     </parent>
 
     <dependencies>
@@ -48,6 +48,7 @@
         <java.version>1.8</java.version>
         <!-- The main class to start by executing java -jar -->
         <start-class>com.baeldung.h2db.demo.server.SpringBootApp</start-class>
+        <spring-boot.version>2.0.4.RELEASE</spring-boot.version>
     </properties>
     	
 </project>

persistence-modules/spring-data-couchbase-2/src/test/java/org/baeldung/SpringContextLiveTest.java

@@ -12,7 +12,7 @@ import org.springframework.test.context.support.DependencyInjectionTestExecution
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration(classes = { MultiBucketCouchbaseConfig.class, MultiBucketIntegrationTestConfig.class })
 @TestExecutionListeners(listeners = { DependencyInjectionTestExecutionListener.class })
-public class SpringContextIntegrationTest {
+public class SpringContextLiveTest {
 
     @Test
     public void whenSpringContextIsBootstrapped_thenNoExceptions() {

persistence-modules/spring-data-couchbase-2/src/test/java/org/baeldung/spring/data/couchbase/service/PersonRepositoryServiceLiveTest.java

@@ -3,7 +3,7 @@ package org.baeldung.spring.data.couchbase.service;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 
-public class PersonRepositoryServiceIntegrationTest extends PersonServiceIntegrationTest {
+public class PersonRepositoryServiceLiveTest extends PersonServiceLiveTest {
 
     @Autowired
     @Qualifier("PersonRepositoryService")

persistence-modules/spring-data-couchbase-2/src/test/java/org/baeldung/spring/data/couchbase/service/PersonServiceLiveTest.java

@@ -20,7 +20,7 @@ import com.couchbase.client.java.CouchbaseCluster;
 import com.couchbase.client.java.document.JsonDocument;
 import com.couchbase.client.java.document.json.JsonObject;
 
-public abstract class PersonServiceIntegrationTest extends IntegrationTest {
+public abstract class PersonServiceLiveTest extends IntegrationTest {
 
     static final String typeField = "_class";
     static final String john = "John";

persistence-modules/spring-data-couchbase-2/src/test/java/org/baeldung/spring/data/couchbase/service/PersonTemplateServiceLiveTest.java

@@ -3,7 +3,7 @@ package org.baeldung.spring.data.couchbase.service;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 
-public class PersonTemplateServiceIntegrationTest extends PersonServiceIntegrationTest {
+public class PersonTemplateServiceLiveTest extends PersonServiceLiveTest {
 
     @Autowired
     @Qualifier("PersonTemplateService")

persistence-modules/spring-data-couchbase-2/src/test/java/org/baeldung/spring/data/couchbase/service/StudentRepositoryServiceLiveTest.java

@@ -3,7 +3,7 @@ package org.baeldung.spring.data.couchbase.service;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 
-public class StudentRepositoryServiceIntegrationTest extends StudentServiceIntegrationTest {
+public class StudentRepositoryServiceLiveTest extends StudentServiceLiveTest {
 
     @Autowired
     @Qualifier("StudentRepositoryService")

persistence-modules/spring-data-couchbase-2/src/test/java/org/baeldung/spring/data/couchbase/service/StudentServiceLiveTest.java

@@ -22,7 +22,7 @@ import com.couchbase.client.java.CouchbaseCluster;
 import com.couchbase.client.java.document.JsonDocument;
 import com.couchbase.client.java.document.json.JsonObject;
 
-public abstract class StudentServiceIntegrationTest extends IntegrationTest {
+public abstract class StudentServiceLiveTest extends IntegrationTest {
 
     static final String typeField = "_class";
     static final String joe = "Joe";

persistence-modules/spring-data-couchbase-2/src/test/java/org/baeldung/spring/data/couchbase/service/StudentTemplateServiceLiveTest.java

@@ -3,7 +3,7 @@ package org.baeldung.spring.data.couchbase.service;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 
-public class StudentTemplateServiceIntegrationTest extends StudentServiceIntegrationTest {
+public class StudentTemplateServiceLiveTest extends StudentServiceLiveTest {
 
     @Autowired
     @Qualifier("StudentTemplateService")

persistence-modules/spring-data-couchbase-2/src/test/java/org/baeldung/spring/data/couchbase2b/MultiBucketLiveTest.java

@@ -9,6 +9,6 @@ import org.springframework.test.context.support.DependencyInjectionTestExecution
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration(classes = { MultiBucketCouchbaseConfig.class, MultiBucketIntegrationTestConfig.class })
 @TestExecutionListeners(listeners = { DependencyInjectionTestExecutionListener.class })
-public abstract class MultiBucketIntegrationTest {
+public abstract class MultiBucketLiveTest {
 
 }