Merge pull request #86 from eugenp/master

update

core-java-modules/core-java-10/README.md

@@ -11,3 +11,4 @@ This module contains articles about Java 10 core features
 - [Copying Sets in Java](https://www.baeldung.com/java-copy-sets)
 - [Converting between a List and a Set in Java](https://www.baeldung.com/convert-list-to-set-and-set-to-list)
 - [Java IndexOutOfBoundsException “Source Does Not Fit in Dest”](https://www.baeldung.com/java-indexoutofboundsexception)
+- [Collect a Java Stream to an Immutable Collection](https://www.baeldung.com/java-stream-immutable-collection)

core-java-modules/core-java-10/src/test/java/com/baeldung/java10/streams/StreamToImmutableJava10UnitTest.java

@@ -0,0 +1,20 @@
+package com.baeldung.java10.streams;
+
+import static java.util.stream.Collectors.toUnmodifiableList;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.junit.Test;
+
+public class StreamToImmutableJava10UnitTest {
+
+    @Test
+    public void whenUsingCollectorsToUnmodifiableList_thenSuccess() {
+        List<String> givenList = Arrays.asList("a", "b", "c");
+        List<String> result = givenList.stream()
+            .collect(toUnmodifiableList());
+
+        System.out.println(result.getClass());
+    }
+}

core-java-modules/core-java-collections-list-3/src/main/java/com/baeldung/list/primitive/PrimitivesListPerformance.java

@@ -8,6 +8,7 @@ import org.openjdk.jmh.runner.options.Options;
 import org.openjdk.jmh.runner.options.OptionsBuilder;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
@@ -18,12 +19,12 @@ import java.util.concurrent.TimeUnit;
 @State(Scope.Thread)
 public class PrimitivesListPerformance {
 
-    private List<Integer> arrayList = new ArrayList<>();
-    private TIntArrayList tList = new TIntArrayList();
-    private cern.colt.list.IntArrayList coltList = new cern.colt.list.IntArrayList();
-    private IntArrayList fastUtilList = new IntArrayList();
+    private List<Integer> arrayList = new ArrayList<>(Arrays.asList(0, 1, 2, 3, 4, 5, 6, 7, 8, 9));
+    private TIntArrayList tList = new TIntArrayList(new int[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9});
+    private cern.colt.list.IntArrayList coltList = new cern.colt.list.IntArrayList(new int[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9});
+    private IntArrayList fastUtilList = new IntArrayList(new int[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9});
 
-    private int getValue = 10;
+    private int getValue = 4;
 
     @Benchmark
     public boolean addArrayList() {

core-java-modules/core-java-concurrency-collections/src/test/java/com/baeldung/java/stream/ThreadPoolInParallelStreamIntegrationTest.java

@@ -21,14 +21,16 @@ public class ThreadPoolInParallelStreamIntegrationTest {
         long lastNum = 1_000_000;
 
         List<Long> aList = LongStream.rangeClosed(firstNum, lastNum).boxed().collect(Collectors.toList());
-
         ForkJoinPool customThreadPool = new ForkJoinPool(4);
-        long actualTotal = customThreadPool
-          .submit(() -> aList.parallelStream()
-            .reduce(0L, Long::sum))
-          .get();
 
+        try {
+            long actualTotal = customThreadPool
+              .submit(() -> aList.parallelStream().reduce(0L, Long::sum))
+              .get();
             assertEquals((lastNum + firstNum) * lastNum / 2, actualTotal);
+        } finally {
+            customThreadPool.shutdown();
+        }
     }
 
     @Test

core-java-modules/core-java-lang-4/README.md

@@ -0,0 +1,5 @@
+## Core Java Lang (Part 4)
+
+This module contains articles about core features in the Java language
+
+- TODO

core-java-modules/core-java-lang-4/pom.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project
+    xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-lang-4</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <name>core-java-lang-4</name>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung.core-java-modules</groupId>
+        <artifactId>core-java-modules</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.openjdk.jmh</groupId>
+            <artifactId>jmh-core</artifactId>
+            <version>${jmh.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.openjdk.jmh</groupId>
+            <artifactId>jmh-generator-annprocess</artifactId>
+            <version>${jmh.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>core-java-lang-4</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+
+    <properties>
+        <jmh.version>1.28</jmh.version>
+    </properties>
+      
+</project>

core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/BenchmarkRunner.java

@@ -0,0 +1,34 @@
+package com.baeldung.finalkeyword;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+
+import java.util.concurrent.TimeUnit;
+
+public class BenchmarkRunner {
+
+    public static void main(String[] args) throws Exception {
+        org.openjdk.jmh.Main.main(args);
+    }
+
+    @Benchmark
+    @OutputTimeUnit(TimeUnit.NANOSECONDS)
+    @BenchmarkMode(Mode.AverageTime)
+    public static String concatNonFinalStrings() {
+        String x = "x";
+        String y = "y";
+        return x + y;
+    }
+
+    @Benchmark
+    @OutputTimeUnit(TimeUnit.NANOSECONDS)
+    @BenchmarkMode(Mode.AverageTime)
+    public static String concatFinalStrings() {
+        final String x = "x";
+        final String y = "y";
+        return x + y;
+    }
+
+}

core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/ClassVariableFinal.java

@@ -0,0 +1,19 @@
+package com.baeldung.finalkeyword;
+
+import java.io.Console;
+
+public class ClassVariableFinal {
+
+    static final boolean doX = false;
+    static final boolean doY = true;
+
+    public static void main(String[] args) {
+        Console console = System.console();
+        if (doX) {
+            console.writer().println("x");
+        } else if (doY) {
+            console.writer().println("y");
+        }
+    }
+
+}

core-java-modules/core-java-lang-4/src/main/java/com/baeldung/finalkeyword/ClassVariableNonFinal.java

@@ -0,0 +1,19 @@
+package com.baeldung.finalkeyword;
+
+import java.io.Console;
+
+public class ClassVariableNonFinal {
+
+    static boolean doX = false;
+    static boolean doY = true;
+
+    public static void main(String[] args) {
+        Console console = System.console();
+        if (doX) {
+            console.writer().println("x");
+        } else if (doY) {
+            console.writer().println("y");
+        }
+    }
+
+}

core-java-modules/core-java-lang-oop-types/src/main/java/com/baeldung/classfile/Outer.java

@@ -0,0 +1,131 @@
+package com.baeldung.classfile;
+
+import org.apache.commons.lang3.StringUtils;
+import com.baeldung.classfile.HelloWorld.HelloSomeone;
+
+public class Outer {
+
+    // Static Nested class
+    static class StaticNested {
+        public String message() {
+            return "This is a static Nested Class";
+        }
+    }
+
+    // Non-static Nested class
+    class Nested {
+        public String message() {
+            return "This is a non-static Nested Class";
+        }
+    }
+
+    // Local class
+    public String message() {
+        class Local {
+            private String message() {
+                return "This is a Local Class within a method";
+            }
+        }
+        Local local = new Local();
+        return local.message();
+    }
+
+    // Local class within if clause
+    public String message(String name) {
+        if (StringUtils.isEmpty(name)) {
+            class Local {
+                private String message() {
+                    return "This is a Local Class within if clause";
+                }
+            }
+            Local local = new Local();
+            return local.message();
+        } else
+            return "Welcome to " + name;
+    }
+
+    // Anonymous Inner class extending a class
+    public String greet() {
+        Outer anonymous = new Outer() {
+            public String greet() {
+                return "Running Anonymous Class...";
+            }
+        };
+        return anonymous.greet();
+    }
+
+    // Anonymous inner class implementing an interface
+    public String greet(String name) {
+
+        HelloWorld helloWorld = new HelloWorld() {
+            public String greet(String name) {
+                return "Welcome to " + name;
+            }
+
+        };
+        return helloWorld.greet(name);
+    }
+
+    // Anonymous inner class implementing nested interface
+    public String greetSomeone(String name) {
+
+        HelloSomeone helloSomeOne = new HelloSomeone() {
+            public String greet(String name) {
+                return "Hello " + name;
+            }
+
+        };
+        return helloSomeOne.greet(name);
+    }
+
+    // Nested interface within a class
+    interface HelloOuter {
+        public String hello(String name);
+    }
+
+    // Enum within a class
+    enum Color {
+        RED, GREEN, BLUE;
+    }
+}
+
+interface HelloWorld {
+
+    public String greet(String name);
+
+    // Nested class within an interface
+    class InnerClass {
+        public String greet(String name) {
+            return "Inner class within an interface";
+        }
+    }
+
+    // Nested interface within an interfaces
+    interface HelloSomeone {
+        public String greet(String name);
+    }
+
+    // Enum within an interface
+    enum Directon {
+        NORTH, SOUTH, EAST, WEST;
+    }
+}
+
+enum Level {
+    LOW, MEDIUM, HIGH;
+
+}
+
+enum Foods {
+
+    DRINKS, EATS;
+
+    // Enum within Enum
+    enum DRINKS {
+        APPLE_JUICE, COLA;
+    }
+
+    enum EATS {
+        POTATO, RICE;
+    }
+}

core-java-modules/core-java-lang-oop-types/src/test/java/com/baeldung/classfile/OuterUnitTest.java

@@ -0,0 +1,46 @@
+package com.baeldung.classfile;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.Test;
+import com.baeldung.classfile.Outer.Nested;
+
+public class OuterUnitTest {
+
+    @Test
+    public void when_static_nestedClass_then_verifyOutput() {
+        Outer.StaticNested nestedClass = new Outer.StaticNested();
+        assertEquals("This is a static Nested Class", nestedClass.message());
+    }
+
+    @Test
+    public void when_nestedClass_then_verifyOutput() {
+        Outer outer = new Outer();
+        Nested nestedClass = outer.new Nested();
+        assertEquals("This is a non-static Nested Class", nestedClass.message());
+    }
+
+    @Test
+    public void when_localClass_then_verifyOutput() {
+        Outer outer = new Outer();
+        assertEquals("This is a Local Class within a method", outer.message());
+    }
+
+    @Test
+    public void when_localClassInIfClause_then_verifyOutput() {
+        Outer outer = new Outer();
+        assertEquals("Welcome to Baeldung", outer.message("Baeldung"));
+        assertEquals("This is a Local Class within if clause", outer.message(""));
+    }
+
+    @Test
+    public void when_anonymousClass_then_verifyOutput() {
+        Outer outer = new Outer();
+        assertEquals("Running Anonymous Class...", outer.greet());
+    }
+
+    @Test
+    public void when_anonymousClassHelloWorld_then_verifyOutput() {
+        Outer outer = new Outer();
+        assertEquals("Welcome to Baeldung", outer.greet("Baeldung"));
+    }
+}

core-java-modules/core-java-reflection-2/README.md

@@ -4,3 +4,4 @@
 - [Set Field Value With Reflection](https://www.baeldung.com/java-set-private-field-value)
 - [Checking If a Method is Static Using Reflection in Java](https://www.baeldung.com/java-check-method-is-static)
 - [Checking if a Java Class is ‘abstract’ Using Reflection](https://www.baeldung.com/java-reflection-is-class-abstract)
+- [Invoking a Private Method in Java](https://www.baeldung.com/java-call-private-method)

core-java-modules/pom.xml

@@ -82,6 +82,7 @@
         <module>core-java-lang</module>
         <module>core-java-lang-2</module>
         <module>core-java-lang-3</module>
+        <module>core-java-lang-4</module>
         <module>core-java-lang-math</module>
         <module>core-java-lang-math-2</module>
         <module>core-java-lang-math-3</module>

data-structures/src/main/java/com/baeldung/circularbuffer/CircularBuffer.java

@@ -10,10 +10,8 @@ public class CircularBuffer<E> {
 
     @SuppressWarnings("unchecked")
     public CircularBuffer(int capacity) {
-
         this.capacity = (capacity < 1) ? DEFAULT_CAPACITY : capacity;
-        this.data = (E[]) new Object[capacity];
-
+        this.data = (E[]) new Object[this.capacity];
         this.readSequence = 0;
         this.writeSequence = -1;
     }

java-rmi/src/test/java/com/baeldung/rmi/JavaRMIIntegrationTest.java

@@ -20,7 +20,7 @@ public class JavaRMIIntegrationTest {
 			MessengerServiceImpl server = new MessengerServiceImpl();
 			server.createStubAndBind();
 		} catch (RemoteException e) {
-			fail("Exception Occurred");
+			fail("Exception Occurred: " + e);
 		}
 	}
 	
@@ -34,11 +34,9 @@ public class JavaRMIIntegrationTest {
 			
 			String expectedMessage = "Server Message";			
 			assertEquals(responseMessage, expectedMessage);
-		} catch (RemoteException e) {
-			fail("Exception Occurred");
-		} catch (NotBoundException nb) {
-			fail("Exception Occurred");
-		}
+		} catch (RemoteException | NotBoundException e) {
+			fail("Exception Occurred: " + e);
+		};
 	}
 	
 }

kubernetes/k8s-intro/README.md

@@ -0,0 +1,13 @@
+# Kubernetes Java API Sample Code
+
+This module contains sample code used to show how to use the Kubernetes client Java API.
+
+Before running those samples, make sure that your environment is correctly configured to access
+a working Kubernetes cluster.
+
+An easy way to check that everything is working as expected is issuing any *kubectl get* command:
+
+```shell
+$ kubectl get nodes
+```
+If you get a valid response, then you're good to go.

kubernetes/k8s-intro/pom.xml

@@ -0,0 +1,35 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>kubernetes-parent</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>k8s-intro</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.kubernetes</groupId>
+            <artifactId>client-java</artifactId>
+            <version>11.0.0</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <!-- http://maven.apache.org/plugins/maven-compiler-plugin/ -->
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

kubernetes/k8s-intro/src/main/java/com/baeldung/kubernetes/intro/ListNodes.java

@@ -0,0 +1,31 @@
+/**
+ * 
+ */
+package com.baeldung.kubernetes.intro;
+
+
+import io.kubernetes.client.openapi.ApiClient;
+import io.kubernetes.client.openapi.apis.CoreV1Api;
+import io.kubernetes.client.openapi.models.V1NodeList;
+import io.kubernetes.client.util.Config;
+
+/**
+ * @author Philippe
+ *
+ */
+public class ListNodes {
+
+    /**
+     * @param args
+     */
+    public static void main(String[] args) throws Exception {
+        
+        ApiClient client  = Config.defaultClient();
+        CoreV1Api api = new CoreV1Api(client);
+        V1NodeList nodeList = api.listNode(null, null, null, null, null, null, null, null, 10, false);
+        nodeList.getItems()
+          .stream()
+          .forEach((node) -> System.out.println(node.getMetadata()));
+    }
+
+}

kubernetes/k8s-intro/src/test/java/com/baeldung/kubernetes/intro/ListNodesLiveTest.java

@@ -0,0 +1,10 @@
+package com.baeldung.kubernetes.intro;
+
+import org.junit.jupiter.api.Test;
+
+class ListNodesLiveTest {
+    @Test
+    void whenListNodes_thenSuccess()  throws Exception {
+        ListNodes.main(new String[] {});
+    }
+}

kubernetes/pom.xml

@@ -0,0 +1,13 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>kubernetes-parent</artifactId>
+    <packaging>pom</packaging>
+    <modules>
+        <module>k8s-intro</module>
+    </modules>
+</project>

libraries-http-2/README.md

@@ -7,5 +7,6 @@ This module contains articles about HTTP libraries.
 - [Jetty ReactiveStreams HTTP Client](https://www.baeldung.com/jetty-reactivestreams-http-client)
 - [Decode an OkHttp JSON Response](https://www.baeldung.com/okhttp-json-response)
 - [Retrofit 2 – Dynamic URL](https://www.baeldung.com/retrofit-dynamic-url)
+- [Adding Interceptors in OkHTTP](https://www.baeldung.com/java-okhttp-interceptors)
 - More articles [[<-- prev]](/libraries-http)
 

maven-modules/maven-plugins/jaxws/README.md

@@ -0,0 +1,3 @@
+### Relevant Articles:
+
+- [Generate WSDL Stubs with Maven](https://www.baeldung.com/maven-wsdl-stubs)

maven-modules/maven-plugins/jaxws/pom.xml

@@ -0,0 +1,45 @@
+<?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-plugins</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>jaxws</artifactId>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>jaxws-maven-plugin</artifactId>
+                <version>2.6</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>wsimport</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <wsdlDirectory>${project.basedir}/src/main/resources/</wsdlDirectory>
+                    <packageName>com.baeldung.soap.ws.client</packageName>
+                    <sourceDestDir>
+                        ${project.build.directory}/generated-sources/
+                    </sourceDestDir>
+                </configuration>
+            </plugin>
+            <plugin>
+                <artifactId>maven-verifier-plugin</artifactId>
+                <version>${maven.verifier.version}</version>
+                <configuration>
+                    <verificationFile>../input-resources/verifications.xml</verificationFile>
+                    <failOnError>false</failOnError>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

maven-modules/maven-plugins/jaxws/src/main/java/com/baeldung/soap/ws/client/CountryNotFoundException.java

@@ -0,0 +1,8 @@
+package com.baeldung.soap.ws.client;
+
+public class CountryNotFoundException extends RuntimeException {
+
+    public CountryNotFoundException() {
+        super("Country not found!");
+    }
+}

maven-modules/maven-plugins/jaxws/src/main/java/com/baeldung/soap/ws/client/CountryServiceClient.java

@@ -0,0 +1,27 @@
+package com.baeldung.soap.ws.client;
+
+import java.util.Optional;
+
+public class CountryServiceClient {
+
+    private CountryService countryService;
+
+    public CountryServiceClient(CountryService countryService) {
+        this.countryService = countryService;
+    }
+
+    public String getCapitalByCountryName(String countryName) {
+        return Optional.of(countryService.findByName(countryName))
+          .map(Country::getCapital).orElseThrow(CountryNotFoundException::new);
+    }
+
+    public int getPopulationByCountryName(String countryName) {
+        return Optional.of(countryService.findByName(countryName))
+          .map(Country::getPopulation).orElseThrow(CountryNotFoundException::new);
+    }
+
+    public Currency getCurrencyByCountryName(String countryName) {
+        return Optional.of(countryService.findByName(countryName))
+          .map(Country::getCurrency).orElseThrow(CountryNotFoundException::new);
+    }
+}

maven-modules/maven-plugins/jaxws/src/main/resources/country.wsdl

@@ -0,0 +1,38 @@
+<!--  Published by JAX-WS RI (http://jax-ws.java.net). RI's version is JAX-WS RI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e.  -->
+<!--  Generated by JAX-WS RI (http://jax-ws.java.net). RI's version is JAX-WS RI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e.  -->
+<definitions xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:wsp="http://www.w3.org/ns/ws-policy" xmlns:wsp1_2="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://server.ws.soap.baeldung.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://server.ws.soap.baeldung.com/" name="CountryServiceImplService">
+    <types>
+        <xsd:schema>
+            <xsd:import namespace="http://server.ws.soap.baeldung.com/" schemaLocation="country.xsd"/>
+        </xsd:schema>
+    </types>
+    <message name="findByName">
+        <part name="arg0" type="xsd:string"/>
+    </message>
+    <message name="findByNameResponse">
+        <part name="return" type="tns:country"/>
+    </message>
+    <portType name="CountryService">
+        <operation name="findByName">
+            <input wsam:Action="http://server.ws.soap.baeldung.com/CountryService/findByNameRequest" message="tns:findByName"/>
+            <output wsam:Action="http://server.ws.soap.baeldung.com/CountryService/findByNameResponse" message="tns:findByNameResponse"/>
+        </operation>
+    </portType>
+    <binding name="CountryServiceImplPortBinding" type="tns:CountryService">
+        <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="rpc"/>
+        <operation name="findByName">
+            <soap:operation soapAction=""/>
+            <input>
+                <soap:body use="literal" namespace="http://server.ws.soap.baeldung.com/"/>
+            </input>
+            <output>
+                <soap:body use="literal" namespace="http://server.ws.soap.baeldung.com/"/>
+            </output>
+        </operation>
+    </binding>
+    <service name="CountryServiceImplService">
+        <port name="CountryServiceImplPort" binding="tns:CountryServiceImplPortBinding">
+            <soap:address location="http://localhost:8888/ws/country"/>
+        </port>
+    </service>
+</definitions>

maven-modules/maven-plugins/jaxws/src/main/resources/country.xsd

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?><!-- Published by JAX-WS RI (http://jax-ws.java.net). RI's version is JAX-WS RI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. -->
+<xs:schema xmlns:tns="http://server.ws.soap.baeldung.com/" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" version="1.0"
+    targetNamespace="http://server.ws.soap.baeldung.com/">
+
+    <xs:complexType name="country">
+        <xs:sequence>
+            <xs:element name="capital" type="xs:string" minOccurs="0"></xs:element>
+            <xs:element name="currency" type="tns:currency" minOccurs="0"></xs:element>
+            <xs:element name="name" type="xs:string" minOccurs="0"></xs:element>
+            <xs:element name="population" type="xs:int"></xs:element>
+        </xs:sequence>
+    </xs:complexType>
+
+    <xs:simpleType name="currency">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="EUR"></xs:enumeration>
+            <xs:enumeration value="INR"></xs:enumeration>
+            <xs:enumeration value="USD"></xs:enumeration>
+        </xs:restriction>
+    </xs:simpleType>
+</xs:schema>

maven-modules/maven-plugins/jaxws/src/test/java/com/baeldung/soap/ws/client/CountryServiceClientUnitTest.java

@@ -0,0 +1,73 @@
+package com.baeldung.soap.ws.client;
+
+import org.junit.jupiter.api.*;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.*;
+
+class CountryServiceClientUnitTest {
+
+    CountryServiceClient countryServiceClient;
+    CountryService countryService;
+
+    @BeforeEach
+    void setUp() {
+        countryService = mock(CountryService.class);
+        countryServiceClient = new CountryServiceClient(countryService);
+    }
+
+    @DisplayName("Get capital by country name when country not found")
+    @Test
+    void givenCountryDoesNotExist_whenGetCapitalByCountryName_thenThrowsCountryNotFoundException() {
+        doThrow(CountryNotFoundException.class).when(countryService).findByName(any());
+        Assertions.assertThrows(CountryNotFoundException.class, () -> countryServiceClient.getCapitalByCountryName(any()));
+    }
+
+    @DisplayName("Get capital by country name when country is India then should return capital")
+    @Test
+    void givenCountryIndia_whenGetCapitalByCountryName_thenShouldReturnCapital() {
+        Country country = mock(Country.class);
+
+        doReturn("New Delhi").when(country).getCapital();
+        doReturn(country).when(countryService).findByName("India");
+
+        Assertions.assertEquals("New Delhi", countryServiceClient.getCapitalByCountryName("India"));
+    }
+
+    @DisplayName("Get population by country name when country not found")
+    @Test
+    void givenCountryDoesNotExist_getPopulationByCountryName_thenThrowsCountryNotFoundException() {
+        doThrow(CountryNotFoundException.class).when(countryService).findByName(any());
+        Assertions.assertThrows(CountryNotFoundException.class, () -> countryServiceClient.getPopulationByCountryName(any()));
+    }
+
+    @DisplayName("Get population by country name when country is India then should return population")
+    @Test
+    void givenCountryIndia_getPopulationByCountryName_thenShouldReturnPopulation() {
+        Country country = mock(Country.class);
+
+        doReturn(1000000).when(country).getPopulation();
+        doReturn(country).when(countryService).findByName("India");
+
+        Assertions.assertEquals(1000000, countryServiceClient.getPopulationByCountryName("India"));
+    }
+
+    @DisplayName("Get currency by country name when country not found")
+    @Test
+    void givenCountryDoesNotExist_getCurrencyByCountryName_thenThrowsCountryNotFoundException() {
+        doThrow(CountryNotFoundException.class).when(countryService).findByName(any());
+        Assertions.assertThrows(CountryNotFoundException.class, () -> countryServiceClient.getCurrencyByCountryName(any()));
+    }
+
+    @DisplayName("Get currency by country name when country is India then should return currency")
+    @Test
+    void givenCountryIndia_getCurrencyByCountryName_thenShouldReturnCurrency() {
+        Country country = mock(Country.class);
+
+        doReturn(Currency.INR).when(country).getCurrency();
+        doReturn(country).when(countryService).findByName("India");
+
+        Assertions.assertEquals(Currency.INR, countryServiceClient.getCurrencyByCountryName("India"));
+    }
+
+}

maven-modules/maven-plugins/pom.xml

@@ -17,6 +17,7 @@
     <modules>
         <module>custom-rule</module>
         <module>maven-enforcer</module>
+        <module>jaxws</module>
     </modules>
 
     <build>

parent-spring-5/pom.xml

@@ -31,7 +31,7 @@
     </dependencies>
 
     <properties>
-        <spring.version>5.2.8.RELEASE</spring.version>
+        <spring.version>5.3.3</spring.version>
         <spring-security.version>5.2.3.RELEASE</spring-security.version>
         <spring-boot-starter-test.version>1.5.10.RELEASE</spring-boot-starter-test.version>
     </properties>

persistence-modules/spring-data-jdbc/src/main/java/com/baeldung/springdatajdbcintro/Application.java

@@ -50,7 +50,7 @@ public class Application implements CommandLineRunner {
         LOGGER.info("@@ findByFirstName() call...");
         repository.findByFirstName("Franz")
             .forEach(person -> LOGGER.info(person.toString()));
-        LOGGER.info("@@ findByFirstName() call...");
+        LOGGER.info("@@ updateByFirstName() call...");
         repository.updateByFirstName(2L, "Date Inferno");
         repository.findAll()
             .forEach(person -> LOGGER.info(person.toString()));

persistence-modules/spring-data-jdbc/src/main/java/com/baeldung/springdatajdbcintro/repository/PersonRepository.java

@@ -1,23 +1,20 @@
 package com.baeldung.springdatajdbcintro.repository;
 
-import java.util.List;
-
+import com.baeldung.springdatajdbcintro.entity.Person;
 import org.springframework.data.jdbc.repository.query.Modifying;
 import org.springframework.data.jdbc.repository.query.Query;
 import org.springframework.data.repository.CrudRepository;
 import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
-import com.baeldung.springdatajdbcintro.entity.Person;
+import java.util.List;
 
 @Repository
-public interface PersonRepository extends CrudRepository<Person,Long> {
+public interface PersonRepository extends CrudRepository<Person, Long> {
 
-    @Query("select * from person where first_name=:firstName")
-    List<Person> findByFirstName(@Param("firstName") String firstName);
+    List<Person> findByFirstName(String firstName);
 
     @Modifying
     @Query("UPDATE person SET first_name = :name WHERE id = :id")
     boolean updateByFirstName(@Param("id") Long id, @Param("name") String name);
-
 }

pom.xml

@@ -471,7 +471,7 @@
                 <module>json-path</module>
                 <module>jsoup</module>
                 <module>jta</module>
-
+                <module>kubernetes</module>
                 <!-- <module>lagom</module> --> <!-- Not a maven project -->
 		<module>language-interop</module>
 		<module>libraries-2</module>

spring-security-modules/spring-security-saml/README.md

@@ -0,0 +1,3 @@
+### Relevant Articles:
+
+- [A Guide to SAML with Spring Security](https://www.baeldung.com/spring-security-saml)

spring-web-modules/spring-mvc-views/pom.xml

@@ -11,7 +11,7 @@
         <groupId>com.baeldung</groupId>
         <artifactId>parent-spring-5</artifactId>
         <version>0.0.1-SNAPSHOT</version>
-        <relativePath>parent-spring-5/pom.xml</relativePath>
+        <relativePath>../../parent-spring-5</relativePath>
     </parent>
 
     <dependencies>

spring-web-modules/spring-rest-http-2/pom.xml

@@ -19,6 +19,10 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-webflux</artifactId>
+        </dependency>
         <dependency>
             <groupId>io.springfox</groupId>
             <artifactId>springfox-swagger2</artifactId>
@@ -29,6 +33,19 @@
             <artifactId>springfox-swagger-ui</artifactId>
             <version>${swagger2.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.github.resilience4j</groupId>
+            <artifactId>resilience4j-timelimiter</artifactId>
+            <version>1.6.1</version>
+        </dependency>
     </dependencies>
 
     <properties>

spring-web-modules/spring-rest-http-2/src/main/java/com/baeldung/requesttimeout/RequestTimeoutRestController.java

@@ -0,0 +1,61 @@
+package com.baeldung.requesttimeout;
+
+import com.baeldung.requesttimeout.domain.Book;
+import com.baeldung.requesttimeout.domain.BookRepository;
+import io.github.resilience4j.timelimiter.TimeLimiter;
+import io.github.resilience4j.timelimiter.TimeLimiterConfig;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.reactive.function.client.WebClient;
+
+import java.time.Duration;
+import java.util.concurrent.Callable;
+import java.util.concurrent.CompletableFuture;
+
+@RestController
+public class RequestTimeoutRestController {
+
+    private final BookRepository bookRepository;
+    private final WebClient webClient;
+
+    public RequestTimeoutRestController(BookRepository bookRepository, WebClient webClient) {
+        this.bookRepository = bookRepository;
+        this.webClient = webClient;
+    }
+
+    @GetMapping("/author/transactional")
+    @Transactional(timeout = 1)
+    public String getWithTransactionTimeout(@RequestParam String title) {
+        return getAuthor(title);
+    }
+
+    private final TimeLimiter ourTimeLimiter = TimeLimiter.of(TimeLimiterConfig.custom().timeoutDuration(Duration.ofMillis(500)).build());
+    @GetMapping("/author/resilience4j")
+    public Callable<String> getWithResilience4jTimeLimiter(@RequestParam String title) {
+        return TimeLimiter.decorateFutureSupplier(ourTimeLimiter, () -> CompletableFuture.supplyAsync(() -> getAuthor(title)));
+    }
+
+    @GetMapping("/author/mvc-request-timeout")
+    public Callable<String> getWithMvcRequestTimeout(@RequestParam String title) {
+        return () -> getAuthor(title);
+    }
+
+    @GetMapping("/author/webclient")
+    public String getWithWebClient(@RequestParam String title) {
+        return webClient.get()
+          .uri(uriBuilder -> uriBuilder
+            .path("/author/transactional")
+            .queryParam("title", title)
+            .build())
+          .retrieve()
+          .bodyToMono(String.class)
+          .block();
+    }
+
+    private String getAuthor(String title) {
+        bookRepository.wasteTime();
+        return bookRepository.findById(title).map(Book::getAuthor).orElse("No book found for this title.");
+    }
+}

spring-web-modules/spring-rest-http-2/src/main/java/com/baeldung/requesttimeout/configuration/WebClientConfiguration.java

@@ -0,0 +1,21 @@
+package com.baeldung.requesttimeout.configuration;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.client.reactive.ReactorClientHttpConnector;
+import org.springframework.web.reactive.function.client.WebClient;
+import reactor.netty.http.client.HttpClient;
+
+import java.time.Duration;
+
+@Configuration
+public class WebClientConfiguration {
+
+    @Bean
+    public WebClient webClient() {
+        return WebClient.builder()
+          .baseUrl("http://localhost:8080")
+          .clientConnector(new ReactorClientHttpConnector(HttpClient.create().responseTimeout(Duration.ofMillis(250))))
+          .build();
+    }
+}

spring-web-modules/spring-rest-http-2/src/main/java/com/baeldung/requesttimeout/domain/Book.java

@@ -0,0 +1,28 @@
+package com.baeldung.requesttimeout.domain;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+@Entity
+public class Book {
+
+    @Id
+    private String title;
+    private String author;
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+}

spring-web-modules/spring-rest-http-2/src/main/java/com/baeldung/requesttimeout/domain/BookRepository.java

@@ -0,0 +1,14 @@
+package com.baeldung.requesttimeout.domain;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface BookRepository extends JpaRepository<Book, String> {
+
+    default int wasteTime() {
+        int i = Integer.MIN_VALUE;
+        while(i < Integer.MAX_VALUE) {
+            i++;
+        }
+        return i;
+    }
+}

spring-web-modules/spring-rest-http-2/src/main/resources/application.properties

@@ -0,0 +1 @@
+spring.mvc.async.request-timeout=750

spring-web-modules/spring-rest-http-2/src/test/com/baeldung/requesttimeout/RequestTimeoutUnitTest.java

@@ -0,0 +1,46 @@
+package com.baeldung.requesttimeout;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.web.reactive.function.client.WebClient;
+import org.springframework.web.reactive.function.client.WebClientRequestException;
+
+@SpringBootTest
+@RunWith(SpringRunner.class)
+public class RequestTimeoutTests {
+
+    private static final WebClient WEB_CLIENT = WebClient.builder().baseUrl("http://localhost:8080").build();
+
+    @Test(expected = WebClientRequestException.class)
+    public void givenTransactionTimeout_whenTimeExpires_thenReceiveException() {
+        getAuthor("transactional");
+    }
+
+    @Test(expected = WebClientRequestException.class)
+    public void givenResilience4jTimeLimiter_whenTimeExpires_thenReceiveException() {
+        getAuthor("resilience4j");
+    }
+
+    @Test(expected = WebClientRequestException.class)
+    public void givenMvcRequestTimeout_whenTimeExpires_thenReceiveException() {
+        getAuthor("mvc-request-timeout");
+    }
+
+    @Test(expected = WebClientRequestException.class)
+    public void givenWebClientTimeout_whenTimeExpires_thenReceiveException() {
+        getAuthor("webclient");
+    }
+
+    private void getAuthor(String authorPath) {
+        WEB_CLIENT.get()
+          .uri(uriBuilder -> uriBuilder
+             .path("/author/" + authorPath)
+             .queryParam("title", "title")
+             .build())
+          .retrieve()
+          .bodyToMono(String.class)
+          .block();
+    }
+}

spring-web-modules/spring-rest-http-2/src/test/resources/application.properties

@@ -0,0 +1 @@
+spring.mvc.async.request-timeout=750