Merge pull request #16 from eugenp/master

Update from master

.gitignore

@@ -85,3 +85,5 @@ transaction.log
 *-shell.log
 
 apache-cxf/cxf-aegis/baeldung.xml
+
+libraries-2/*.db

algorithms-miscellaneous-2/src/test/java/com/baeldung/jgrapht/GraphImageGenerationUnitTest.java

@@ -1,16 +1,21 @@
 package com.baeldung.jgrapht;
 
 import static org.junit.Assert.assertTrue;
+
 import java.awt.Color;
 import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.IOException;
+
 import javax.imageio.ImageIO;
+
 import org.jgrapht.ext.JGraphXAdapter;
 import org.jgrapht.graph.DefaultDirectedGraph;
 import org.jgrapht.graph.DefaultEdge;
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
+
 import com.mxgraph.layout.mxCircleLayout;
 import com.mxgraph.layout.mxIGraphLayout;
 import com.mxgraph.util.mxCellRenderer;
@@ -20,7 +25,7 @@ public class GraphImageGenerationUnitTest {
 
     @Before
     public void createGraph() throws IOException {
-        File imgFile = new File("src/test/resources/graph.png");
+        File imgFile = new File("src/test/resources/graph1.png");
         imgFile.createNewFile();
         g = new DefaultDirectedGraph<String, DefaultEdge>(DefaultEdge.class);
         String x1 = "x1";
@@ -34,12 +39,18 @@ public class GraphImageGenerationUnitTest {
         g.addEdge(x3, x1);
     }
 
+    @After
+    public void cleanup() {
+        File imgFile = new File("src/test/resources/graph1.png");
+        imgFile.deleteOnExit();
+    }
+
     @Test
     public void givenAdaptedGraph_whenWriteBufferedImage_ThenFileShouldExist() throws IOException {
         JGraphXAdapter<String, DefaultEdge> graphAdapter = new JGraphXAdapter<String, DefaultEdge>(g);
         mxIGraphLayout layout = new mxCircleLayout(graphAdapter);
         layout.execute(graphAdapter.getDefaultParent());
-        File imgFile = new File("src/test/resources/graph.png");
+        File imgFile = new File("src/test/resources/graph1.png");
         BufferedImage image = mxCellRenderer.createBufferedImage(graphAdapter, null, 2, Color.WHITE, true, null);
         ImageIO.write(image, "PNG", imgFile);
         assertTrue(imgFile.exists());

apache-libraries/pom.xml

@@ -2,7 +2,7 @@
 <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>apache-miscellaneous-1</artifactId>
+    <artifactId>apache-libraries</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <name>apache-libraries</name>
 

aws-app-sync/pom.xml

@@ -13,10 +13,6 @@
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
-    <properties>
-        <java.version>1.8</java.version>
-    </properties>
-
     <dependencies>
 
         <dependency>

cloud-foundry-uaa/cf-uaa-oauth2-client/pom.xml

@@ -6,7 +6,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.example</groupId>
     <artifactId>cf-uaa-oauth2-client</artifactId>
-    <name>uaa-client-webapp</name>
+    <name>cf-uaa-oauth2-client</name>
     <description>Demo project for Spring Boot</description>
 
     <parent>

core-java-modules/core-java-8-datetime-2/pom.xml

@@ -6,7 +6,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>core-java-8-datetime-2</artifactId>
     <version>${project.parent.version}</version>
-    <name>core-java-8-datetime</name>
+    <name>core-java-8-datetime-2</name>
     <packaging>jar</packaging>
     <parent>
         <groupId>com.baeldung.core-java-modules</groupId>

core-java-modules/core-java-9-new-features/src/test/java/com/baeldung/java9/currentmethod/CurrentExecutingMethodUnitTest.java

@@ -0,0 +1,23 @@
+package com.baeldung.java9.currentmethod;
+
+import org.junit.Test;
+
+import java.util.Optional;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class CurrentExecutingMethodUnitTest {
+
+    @Test
+    public void givenJava9_whenWalkingTheStack_thenFindMethod() {
+        StackWalker walker = StackWalker.getInstance();
+        Optional<String> methodName = walker.walk(frames -> frames
+          .findFirst()
+          .map(StackWalker.StackFrame::getMethodName)
+        );
+
+        assertTrue(methodName.isPresent());
+        assertEquals("givenJava9_whenWalkingTheStack_thenFindMethod", methodName.get());
+    }
+}

core-java-modules/core-java-arrays-operations-basic/pom.xml

@@ -13,32 +13,6 @@
     <name>core-java-arrays-operations-basic</name>
     <packaging>jar</packaging>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-shade-plugin</artifactId>
-                <version>${shade.plugin.version}</version>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>shade</goal>
-                        </goals>
-                        <configuration>
-                            <finalName>benchmarks</finalName>
-                            <transformers>
-                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                                    <mainClass>org.openjdk.jmh.Main</mainClass>
-                                </transformer>
-                            </transformers>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
     <dependencies>
         <dependency>
             <groupId>org.apache.commons</groupId>
@@ -66,6 +40,32 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>${shade.plugin.version}</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <finalName>benchmarks</finalName>
+                            <transformers>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                    <mainClass>org.openjdk.jmh.Main</mainClass>
+                                </transformer>
+                            </transformers>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <shade.plugin.version>3.2.0</shade.plugin.version>
 

core-java-modules/core-java-arrays-sorting/pom.xml

@@ -14,32 +14,6 @@
     <name>core-java-arrays-sorting</name>
     <packaging>jar</packaging>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-shade-plugin</artifactId>
-                <version>${shade.plugin.version}</version>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>shade</goal>
-                        </goals>
-                        <configuration>
-                            <finalName>benchmarks</finalName>
-                            <transformers>
-                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                                    <mainClass>org.openjdk.jmh.Main</mainClass>
-                                </transformer>
-                            </transformers>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
     <dependencies>
         <!-- Utilities -->
         <dependency>
@@ -74,6 +48,32 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>${shade.plugin.version}</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <finalName>benchmarks</finalName>
+                            <transformers>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                    <mainClass>org.openjdk.jmh.Main</mainClass>
+                                </transformer>
+                            </transformers>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <shade.plugin.version>3.2.0</shade.plugin.version>
 

core-java-modules/core-java-concurrency-basic-2/src/main/java/com/baeldung/concurrent/localvariables/LocalAndLambda.java

@@ -0,0 +1,10 @@
+package com.baeldung.concurrent.localvariables;
+
+public class LocalAndLambda {
+    public static void main(String... args) {
+        String text = "";
+        // Un-commenting the next line will break compilation, because text is no longer effectively final
+        // text = "675";
+        new Thread(() -> System.out.println(text)).start();
+    }
+}

core-java-modules/core-java-concurrency-basic-2/src/main/java/com/baeldung/concurrent/localvariables/LocalVariables.java

@@ -0,0 +1,20 @@
+package com.baeldung.concurrent.localvariables;
+
+import java.security.SecureRandom;
+
+public class LocalVariables implements Runnable {
+    private int field;
+
+    public static void main(String... args) {
+        LocalVariables target = new LocalVariables();
+        new Thread(target).start();
+        new Thread(target).start();
+    }
+
+    @Override
+    public void run() {
+        field = new SecureRandom().nextInt();
+        int local = new SecureRandom().nextInt();
+        System.out.println(field + " - " + local);
+    }
+}

core-java-modules/core-java-exceptions-2/pom.xml

@@ -33,7 +33,6 @@
     <url>http://maven.apache.org</url>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <commons.lang3.version>3.10</commons.lang3.version>
         <!-- testing -->
         <assertj-core.version>3.10.0</assertj-core.version>

core-java-modules/core-java-exceptions-2/src/test/java/com/baeldung/exceptionininitializererror/ExceptionInInitializerErrorUnitTest.java

@@ -0,0 +1,55 @@
+package com.baeldung.exceptionininitializererror;
+
+import org.junit.Test;
+
+import java.lang.reflect.Constructor;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+public class ExceptionInInitializerErrorUnitTest {
+
+    @Test
+    public void givenStaticVar_whenThrows_thenWrapsItInAnExceptionInInitializerError() {
+        assertThatThrownBy(StaticVar::new)
+          .isInstanceOf(ExceptionInInitializerError.class)
+          .hasCauseInstanceOf(RuntimeException.class);
+    }
+
+    @Test
+    public void givenStaticBlock_whenThrows_thenWrapsItInAnExceptionInInitializerError() {
+        assertThatThrownBy(StaticBlock::new)
+          .isInstanceOf(ExceptionInInitializerError.class)
+          .hasCauseInstanceOf(ArithmeticException.class);
+    }
+
+    private static class CheckedConvention {
+
+        private static Constructor<?> constructor;
+
+        static {
+            try {
+                constructor = CheckedConvention.class.getDeclaredConstructor();
+            } catch (NoSuchMethodException e) {
+                throw new ExceptionInInitializerError(e);
+            }
+        }
+    }
+
+    private static class StaticVar {
+
+        private static int state = initializeState();
+
+        private static int initializeState() {
+            throw new RuntimeException();
+        }
+    }
+
+    private static class StaticBlock {
+
+        private static int state;
+
+        static {
+            state = 42 / 0;
+        }
+    }
+}

core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/Course.java

@@ -0,0 +1,10 @@
+package com.baeldung.objectsize;
+
+public class Course {
+
+    private String name;
+
+    public Course(String name) {
+        this.name = name;
+    }
+}

core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/InstrumentedSize.java

@@ -0,0 +1,11 @@
+package com.baeldung.objectsize;
+
+public class InstrumentedSize {
+
+    public static void main(String[] args) {
+        String ds = "Data Structures";
+        Course course = new Course(ds);
+
+        System.out.println(ObjectSizeCalculator.sizeOf(course));
+    }
+}

core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/MANIFEST.MF

@@ -0,0 +1 @@
+Premain-Class: com.baeldung.objectsize.ObjectSizeCalculator

core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/ObjectSizeCalculator.java

@@ -0,0 +1,16 @@
+package com.baeldung.objectsize;
+
+import java.lang.instrument.Instrumentation;
+
+public class ObjectSizeCalculator {
+
+    private static Instrumentation instrumentation;
+
+    public static void premain(String args, Instrumentation inst) {
+        instrumentation = inst;
+    }
+
+    public static long sizeOf(Object o) {
+        return instrumentation.getObjectSize(o);
+    }
+}

core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/ObjectSizeUnitTest.java

@@ -0,0 +1,40 @@
+package com.baeldung.objectsize;
+
+import org.junit.Test;
+import org.openjdk.jol.info.ClassLayout;
+import org.openjdk.jol.info.GraphLayout;
+import org.openjdk.jol.vm.VM;
+
+public class ObjectSizeUnitTest {
+
+    @Test
+    public void printingTheVMDetails() {
+        System.out.println(VM.current().details());
+    }
+
+    @Test
+    public void printingTheProfClassLayout() {
+        System.out.println(ClassLayout.parseClass(Professor.class).toPrintable());
+    }
+
+    @Test
+    public void printingTheCourseClassLayout() {
+        System.out.println(ClassLayout.parseClass(Course.class).toPrintable());
+    }
+
+    @Test
+    public void printingACourseInstanceLayout() {
+        String ds = "Data Structures";
+        Course course = new Course(ds);
+
+        System.out.println("The shallow size is :" + VM.current().sizeOf(course));
+
+        System.out.println(ClassLayout.parseInstance(course).toPrintable());
+        System.out.println(ClassLayout.parseInstance(ds).toPrintable());
+        System.out.println(ClassLayout.parseInstance(ds.toCharArray()).toPrintable());
+
+        System.out.println(GraphLayout.parseInstance(course).totalSize());
+        System.out.println(GraphLayout.parseInstance(course).toFootprint());
+        System.out.println(GraphLayout.parseInstance(course).toPrintable());
+    }
+}

core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/objectsize/Professor.java

@@ -0,0 +1,24 @@
+package com.baeldung.objectsize;
+
+import java.time.LocalDate;
+import java.util.List;
+
+public class Professor {
+
+    private String name;
+    private boolean tenured;
+    private List<Course> courses;
+    private int level;
+    private LocalDate birthDay;
+    private double lastEvaluation;
+
+    public Professor(String name, boolean tenured, List<Course> courses,
+      int level, LocalDate birthDay, double lastEvaluation) {
+        this.name = name;
+        this.tenured = tenured;
+        this.courses = courses;
+        this.level = level;
+        this.birthDay = birthDay;
+        this.lastEvaluation = lastEvaluation;
+    }
+}

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

@@ -13,4 +13,4 @@ This module contains articles about core features in the Java language
 - [Comparing Long Values in Java](https://www.baeldung.com/java-compare-long-values)
 - [Comparing Objects in Java](https://www.baeldung.com/java-comparing-objects)
 - [Casting int to Enum in Java](https://www.baeldung.com/java-cast-int-to-enum)
-- [[<-- Prev]](/core-java-modules/core-java-lang)
+[[ <-- Prev]](/core-java-modules/core-java-lang)[[Next --> ]](/core-java-modules/core-java-lang-3)

core-java-modules/core-java-lang-3/README.md

@@ -0,0 +1,5 @@
+## Core Java Lang (Part 3)
+
+This module contains articles about core features in the Java language
+
+- [[<-- Prev]](/core-java-modules/core-java-lang-2)

core-java-modules/core-java-lang-3/pom.xml

@@ -0,0 +1,42 @@
+<?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-3</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <name>core-java-lang-3</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.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>core-java-lang-3</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+
+    <properties>
+        <assertj.version>3.12.2</assertj.version>
+    </properties>
+      
+</project>

core-java-modules/core-java-lang-3/src/test/java/com/baeldung/stringtoboolean/StringToBooleanUnitTest.java

@@ -0,0 +1,30 @@
+package com.baeldung.stringtoboolean;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.Test;
+
+public class StringToBooleanUnitTest {
+    
+    @Test
+    public void givenStringTrue_whenUsingParseBoolean_thenTrue() {
+        assertThat(Boolean.parseBoolean("true")).isTrue();
+    }
+
+    @Test
+    public void givenStringTrue_whenUsingValueOf_thenTrue() {
+        assertThat(Boolean.valueOf("true")).isTrue();
+    }
+
+    @Test
+    public void givenStringTrue_whenUsingGetBoolean_thenFalse() {
+        assertThat(Boolean.getBoolean("true")).isFalse();
+    }
+
+    @Test
+    public void givenSystemProperty_whenUsingGetBoolean_thenTrue() {
+        System.setProperty("CODING_IS_FUN", "true");
+        
+        assertThat(Boolean.getBoolean("CODING_IS_FUN")).isTrue();
+    }
+}

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

@@ -13,4 +13,5 @@ This module contains articles about core features in the Java language
 - [Retrieving a Class Name in Java](https://www.baeldung.com/java-class-name)
 - [The Java continue and break Keywords](https://www.baeldung.com/java-continue-and-break)
 - [Infinite Loops in Java](https://www.baeldung.com/infinite-loops-java)
-- [[More --> ]](/core-java-modules/core-java-lang-2)
+
+[[Next --> ]](/core-java-modules/core-java-lang-2)

core-java-modules/core-java-regex/src/test/java/com/baeldung/regex/countmatches/CountMatchesUnitTest.java

@@ -0,0 +1,110 @@
+package com.baeldung.regex.countmatches;
+
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.junit.Test;
+
+/**
+ * Unit Test intended to count number of matches of a RegEx using Java 8 and 9.
+ * 
+ * Java 9 is needed to run the commented out tests.
+ */
+public class CountMatchesUnitTest {
+
+    private static final Pattern EMAIL_ADDRESS_PATTERN = Pattern.compile("([a-z0-9_.-]+)@([a-z0-9_.-]+[a-z])");
+    private static final String TEXT_CONTAINING_EMAIL_ADDRESSES = "You can contact me through: writer@baeldung.com, editor@baeldung.com and team@bealdung.com";
+    private static final String TEXT_CONTAINING_FIVE_EMAIL_ADDRESSES = "Valid emails are: me@gmail.com, you@baeldung.com, contact@hotmail.com, press@anysite.com and support@bealdung.com";
+    private static final String TEXT_CONTAINING_OVERLAP_EMAIL_ADDRESSES = "Try to contact us at team@baeldung.comeditor@baeldung.com, support@baeldung.com.";
+
+    @Test
+    public void givenContainingEmailString_whenJava8Match_thenCountMacthesFound() {
+        Matcher countEmailMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_EMAIL_ADDRESSES);
+
+        int count = 0;
+        while (countEmailMatcher.find()) {
+            count++;
+        }
+
+        assertEquals(3, count);
+    }
+
+    @Test
+    public void givenContainingFiveEmailsString_whenJava8Match_thenCountMacthesFound() {
+        Matcher countFiveEmailsMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_FIVE_EMAIL_ADDRESSES);
+
+        int count = 0;
+        while (countFiveEmailsMatcher.find()) {
+            count++;
+        }
+
+        assertEquals(5, count);
+    }
+
+    @Test
+    public void givenStringWithoutEmails_whenJava8Match_thenCountMacthesNotFound() {
+        Matcher noEmailMatcher = EMAIL_ADDRESS_PATTERN.matcher("Simple text without emails.");
+
+        int count = 0;
+        while (noEmailMatcher.find()) {
+            count++;
+        }
+
+        assertEquals(0, count);
+    }
+
+    @Test
+    public void givenStringWithOverlappingEmails_whenJava8Match_thenCountWrongMatches() {
+        Matcher countOverlappingEmailsMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_OVERLAP_EMAIL_ADDRESSES);
+
+        int count = 0;
+        while (countOverlappingEmailsMatcher.find()) {
+            count++;
+        }
+
+        assertNotEquals(3, count);
+    }
+
+    @Test
+    public void givenContainingEmailString_whenStartingInJava9Match_thenCountMacthesFound() {
+        // uncomment to try with Java 9
+        // Matcher countEmailMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_EMAIL_ADDRESSES);
+
+        // long count = countEmailMatcher.results().count();
+
+        // assertEquals(3, count);
+    }
+
+    @Test
+    public void givenContainingFiveEmailsString_whenStartingInJava9Match_thenCountMacthesFound() {
+        // uncomment to try with Java 9
+        // Matcher countFiveEmailsMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_FIVE_EMAIL_ADDRESSES);
+
+        // long count = countFiveEmailsMatcher.results().count();
+
+        // assertEquals(5, count);
+    }
+
+    @Test
+    public void givenStringWithoutEmails_whenJava9Match_thenCountMacthesNotFound() {
+        // uncomment to try with Java 9
+        // Matcher noEmailMatcher = EMAIL_ADDRESS_PATTERN.matcher("Simple text without emails.");
+
+        // long count = noEmailMatcher.results().count();
+
+        // assertEquals(0, count);
+    }
+
+    @Test
+    public void givenStringWithOverlappingEmails_whenJava9Match_thenCountWrongMatches() {
+        // uncomment to try with Java 9
+        // Matcher countOverlappingEmailsMatcher = EMAIL_ADDRESS_PATTERN.matcher(TEXT_CONTAINING_OVERLAP_EMAIL_ADDRESSES);
+
+        // long count = countOverlappingEmailsMatcher.results().count();
+
+        // assertNotEquals(3, count);
+    }
+}

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

@@ -9,7 +9,6 @@ This module contains articles about the Stream API in Java.
 - [Iterable to Stream in Java](https://www.baeldung.com/java-iterable-to-stream)
 - [How to Iterate Over a Stream With Indices](https://www.baeldung.com/java-stream-indices)
 - [Stream Ordering in Java](https://www.baeldung.com/java-stream-ordering)
-- [Introduction to Protonpack](https://www.baeldung.com/java-protonpack)
 - [Java Stream Filter with Lambda Expression](https://www.baeldung.com/java-stream-filter-lambda)
 - [Counting Matches on a Stream Filter](https://www.baeldung.com/java-stream-filter-count)
 - [Summing Numbers with Java Streams](https://www.baeldung.com/java-stream-sum)

core-java-modules/core-java-string-operations-2/README.md

@@ -10,7 +10,6 @@ This module contains articles about string operations.
 - [Java String equalsIgnoreCase()](https://www.baeldung.com/java-string-equalsignorecase)
 - [Case-Insensitive String Matching in Java](https://www.baeldung.com/java-case-insensitive-string-matching)
 - [L-Trim and R-Trim Alternatives in Java](https://www.baeldung.com/java-trim-alternatives)
-- [Java Convert PDF to Base64](https://www.baeldung.com/java-convert-pdf-to-base64)
 - [Encode a String to UTF-8 in Java](https://www.baeldung.com/java-string-encode-utf-8)
 - [Guide to Character Encoding](https://www.baeldung.com/java-char-encoding)
 - [Convert Hex to ASCII in Java](https://www.baeldung.com/java-convert-hex-to-ascii) #remove additional readme file

core-java-modules/pom.xml

@@ -85,6 +85,7 @@
         <module>core-java-lambdas</module>
         <module>core-java-lang</module>
         <module>core-java-lang-2</module>
+        <module>core-java-lang-3</module>
         <module>core-java-lang-math</module>
         <module>core-java-lang-math-2</module>
         <module>core-java-lang-oop-constructors</module>
@@ -134,18 +135,6 @@
         <module>pre-jpms</module>
     </modules>
 
-    <build>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>org.apache.maven.plugins</groupId>
-                    <artifactId>maven-surefire-plugin</artifactId>
-                    <version>${maven-surefire-plugin.version}</version>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-    </build>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -163,6 +152,18 @@
         </dependencies>
     </dependencyManagement>
 
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-surefire-plugin</artifactId>
+                    <version>${maven-surefire-plugin.version}</version>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+
     <properties>
         <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
         <junit-jupiter.version>5.6.2</junit-jupiter.version>

ddd/pom.xml

@@ -17,16 +17,6 @@
         <relativePath>../parent-boot-2</relativePath>
     </parent>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>${maven-surefire-plugin.version}</version>
-            </plugin>
-        </plugins>
-    </build>
-
     <dependencyManagement>
         <dependencies>
             <dependency>
@@ -105,6 +95,16 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>${maven-surefire-plugin.version}</version>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
 

guava-2/README.md

@@ -0,0 +1,7 @@
+## Guava
+
+This module contains articles a Google Guava
+
+### Relevant Articles: 
+- [Introduction to Guava Throwables](https://www.baeldung.com/guava-throwables)
+- [Guava CharMatcher](https://www.baeldung.com/guava-string-charmatcher)

guava-2/pom.xml

@@ -0,0 +1,48 @@
+<?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>guava-2</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <name>guava-2</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-java</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <!-- test scoped -->
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>guava</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+
+    <properties>
+        <!-- testing -->
+        <assertj.version>3.6.1</assertj.version>
+    </properties>
+
+</project>

guava-2/src/test/java/com/baeldung/guava/charmatcher/GuavaCharMatcherUnitTest.java

@@ -0,0 +1,113 @@
+package com.baeldung.guava.charmatcher;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.nio.charset.Charset;
+import java.nio.charset.CharsetEncoder;
+
+import org.junit.Test;
+
+import com.google.common.base.CharMatcher;
+import com.google.common.base.Predicate;
+
+public class GuavaCharMatcherUnitTest {
+
+    @Test
+    public void whenRemoveSpecialCharacters_thenRemoved() {
+        final String input = "H*el.lo,}12";
+        final CharMatcher matcher = CharMatcher.javaLetterOrDigit();
+        final String result = matcher.retainFrom(input);
+
+        assertEquals("Hello12", result);
+    }
+
+    @Test
+    public void whenRemoveNonASCIIChars_thenRemoved() {
+        final String input = "あhello₤";
+
+        String result = CharMatcher.ascii().retainFrom(input);
+        assertEquals("hello", result);
+
+        result = CharMatcher.inRange('0', 'z').retainFrom(input);
+        assertEquals("hello", result);
+    }
+
+    @Test
+    public void whenValidateString_thenValid() {
+        final String input = "hello";
+
+        boolean result = CharMatcher.javaLowerCase().matchesAllOf(input);
+        assertTrue(result);
+
+        result = CharMatcher.is('e').matchesAnyOf(input);
+        assertTrue(result);
+
+        result = CharMatcher.javaDigit().matchesNoneOf(input);
+        assertTrue(result);
+    }
+
+    @Test
+    public void whenTrimString_thenTrimmed() {
+        final String input = "---hello,,,";
+
+        String result = CharMatcher.is('-').trimLeadingFrom(input);
+        assertEquals("hello,,,", result);
+
+        result = CharMatcher.is(',').trimTrailingFrom(input);
+        assertEquals("---hello", result);
+
+        result = CharMatcher.anyOf("-,").trimFrom(input);
+        assertEquals("hello", result);
+    }
+
+    @Test
+    public void whenCollapseFromString_thenCollapsed() {
+        final String input = "       hel    lo      ";
+
+        String result = CharMatcher.is(' ').collapseFrom(input, '-');
+        assertEquals("-hel-lo-", result);
+
+        result = CharMatcher.is(' ').trimAndCollapseFrom(input, '-');
+        assertEquals("hel-lo", result);
+    }
+
+    @Test
+    public void whenReplaceFromString_thenReplaced() {
+        final String input = "apple-banana.";
+
+        String result = CharMatcher.anyOf("-.").replaceFrom(input, '!');
+        assertEquals("apple!banana!", result);
+
+        result = CharMatcher.is('-').replaceFrom(input, " and ");
+        assertEquals("apple and banana.", result);
+    }
+
+    @Test
+    public void whenCountCharInString_thenCorrect() {
+        final String input = "a, c, z, 1, 2";
+
+        int result = CharMatcher.is(',').countIn(input);
+        assertEquals(4, result);
+
+        result = CharMatcher.inRange('a', 'h').countIn(input);
+        assertEquals(2, result);
+    }
+
+    @Test
+    public void whenRemoveCharsNotInCharset_thenRemoved() {
+        final Charset charset = Charset.forName("cp437");
+        final CharsetEncoder encoder = charset.newEncoder();
+
+        final Predicate<Character> inRange = new Predicate<Character>() {
+            @Override
+            public boolean apply(final Character c) {
+                return encoder.canEncode(c);
+            }
+        };
+
+        final String result = CharMatcher.forPredicate(inRange).retainFrom("helloは");
+        assertEquals("hello", result);
+    }
+
+}

guava-2/src/test/java/com/baeldung/guava/throwables/ThrowablesUnitTest.java

@@ -1,4 +1,4 @@
-package com.baeldung.guava;
+package com.baeldung.guava.throwables;
 
 import com.google.common.base.Throwables;
 import org.junit.Test;

guava-2/src/test/resources/.gitignore

@@ -0,0 +1,13 @@
+*.class
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+
+# Packaged files #
+*.jar
+*.war
+*.ear

guava-2/src/test/resources/test.out

@@ -0,0 +1 @@
+John Jane Adam Tom 

guava-2/src/test/resources/test1.in

@@ -0,0 +1 @@
+Hello world

guava-2/src/test/resources/test1_1.in

@@ -0,0 +1 @@
+Test

guava-2/src/test/resources/test2.in

@@ -0,0 +1,4 @@
+John
+Jane
+Adam
+Tom

guava-2/src/test/resources/test_copy.in

@@ -0,0 +1 @@
+Hello world

guava-collections-map/pom.xml

@@ -14,6 +14,21 @@
         <relativePath>../parent-java</relativePath>
     </parent>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>${junit-jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.vintage</groupId>
+            <artifactId>junit-vintage-engine</artifactId>
+            <version>${junit-jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
     <build>
         <finalName>guava-collections-map</finalName>
 
@@ -33,21 +48,6 @@
         </plugins>
     </build>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter</artifactId>
-            <version>${junit-jupiter.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.vintage</groupId>
-            <artifactId>junit-vintage-engine</artifactId>
-            <version>${junit-jupiter.version}</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-
     <properties>
         <junit-jupiter.version>5.6.2</junit-jupiter.version>
     </properties>

guava-collections-set/pom.xml

@@ -13,18 +13,6 @@
         <relativePath>../parent-java</relativePath>
     </parent>
 
-    <build>
-        <finalName>guava-collections-set</finalName>
-
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.22.2</version>
-            </plugin>
-        </plugins>
-    </build>
-
     <dependencies>
         <!-- test scoped -->
         <dependency>
@@ -47,6 +35,18 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <finalName>guava-collections-set</finalName>
+
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.2</version>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>

guava-collections/README.md

@@ -14,4 +14,3 @@ This module contains articles about Google Guava collections
 - [Guava – Lists](https://www.baeldung.com/guava-lists)
 - [Guide to Guava MinMaxPriorityQueue and EvictingQueue](https://www.baeldung.com/guava-minmax-priority-queue-and-evicting-queue)
 - [Guide to Guava Table](https://www.baeldung.com/guava-table)
-- [Guava CharMatcher](https://www.baeldung.com/guava-string-charmatcher)

guava-collections/pom.xml

@@ -15,25 +15,6 @@
         <relativePath>../parent-java</relativePath>
     </parent>
 
-    <build>
-        <finalName>guava-collections</finalName>
-
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.22.2</version>
-            </plugin>
-        </plugins>
-    </build>
-
     <dependencies>
         <!-- utils -->
         <dependency>
@@ -76,6 +57,25 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <finalName>guava-collections</finalName>
+
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.2</version>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <!-- util -->
         <commons-collections4.version>4.1</commons-collections4.version>

guava-collections/src/test/java/com/baeldung/guava/joinsplit/GuavaStringUnitTest.java

@@ -4,20 +4,19 @@ import static org.hamcrest.Matchers.contains;
 import static org.hamcrest.Matchers.containsString;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
 
-import java.nio.charset.Charset;
-import java.nio.charset.CharsetEncoder;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
 
-import com.google.common.collect.*;
 import org.junit.Test;
 
-import com.google.common.base.CharMatcher;
 import com.google.common.base.Function;
 import com.google.common.base.Joiner;
-import com.google.common.base.Predicate;
 import com.google.common.base.Splitter;
+import com.google.common.collect.Iterables;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
 
 public class GuavaStringUnitTest {
 
@@ -113,102 +112,4 @@ public class GuavaStringUnitTest {
         assertEquals(4, result.size());
         assertThat(result, contains("a", "b", "c", "d,e"));
     }
-
-    @Test
-    public void whenRemoveSpecialCharacters_thenRemoved() {
-        final String input = "H*el.lo,}12";
-        final CharMatcher matcher = CharMatcher.javaLetterOrDigit();
-        final String result = matcher.retainFrom(input);
-
-        assertEquals("Hello12", result);
-    }
-
-    @Test
-    public void whenRemoveNonASCIIChars_thenRemoved() {
-        final String input = "あhello₤";
-
-        String result = CharMatcher.ascii().retainFrom(input);
-        assertEquals("hello", result);
-
-        result = CharMatcher.inRange('0', 'z').retainFrom(input);
-        assertEquals("hello", result);
-    }
-
-    @Test
-    public void whenValidateString_thenValid() {
-        final String input = "hello";
-
-        boolean result = CharMatcher.javaLowerCase().matchesAllOf(input);
-        assertTrue(result);
-
-        result = CharMatcher.is('e').matchesAnyOf(input);
-        assertTrue(result);
-
-        result = CharMatcher.javaDigit().matchesNoneOf(input);
-        assertTrue(result);
-    }
-
-    @Test
-    public void whenTrimString_thenTrimmed() {
-        final String input = "---hello,,,";
-
-        String result = CharMatcher.is('-').trimLeadingFrom(input);
-        assertEquals("hello,,,", result);
-
-        result = CharMatcher.is(',').trimTrailingFrom(input);
-        assertEquals("---hello", result);
-
-        result = CharMatcher.anyOf("-,").trimFrom(input);
-        assertEquals("hello", result);
-    }
-
-    @Test
-    public void whenCollapseFromString_thenCollapsed() {
-        final String input = "       hel    lo      ";
-
-        String result = CharMatcher.is(' ').collapseFrom(input, '-');
-        assertEquals("-hel-lo-", result);
-
-        result = CharMatcher.is(' ').trimAndCollapseFrom(input, '-');
-        assertEquals("hel-lo", result);
-    }
-
-    @Test
-    public void whenReplaceFromString_thenReplaced() {
-        final String input = "apple-banana.";
-
-        String result = CharMatcher.anyOf("-.").replaceFrom(input, '!');
-        assertEquals("apple!banana!", result);
-
-        result = CharMatcher.is('-').replaceFrom(input, " and ");
-        assertEquals("apple and banana.", result);
-    }
-
-    @Test
-    public void whenCountCharInString_thenCorrect() {
-        final String input = "a, c, z, 1, 2";
-
-        int result = CharMatcher.is(',').countIn(input);
-        assertEquals(4, result);
-
-        result = CharMatcher.inRange('a', 'h').countIn(input);
-        assertEquals(2, result);
-    }
-
-    @Test
-    public void whenRemoveCharsNotInCharset_thenRemoved() {
-        final Charset charset = Charset.forName("cp437");
-        final CharsetEncoder encoder = charset.newEncoder();
-
-        final Predicate<Character> inRange = new Predicate<Character>() {
-            @Override
-            public boolean apply(final Character c) {
-                return encoder.canEncode(c);
-            }
-        };
-
-        final String result = CharMatcher.forPredicate(inRange).retainFrom("helloは");
-        assertEquals("hello", result);
-    }
-
 }

guava-io/pom.xml

@@ -16,6 +16,21 @@
         <relativePath>../parent-java</relativePath>
     </parent>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>${junit-jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.vintage</groupId>
+            <artifactId>junit-vintage-engine</artifactId>
+            <version>${junit-jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
     <build>
         <finalName>guava-io</finalName>
 
@@ -35,18 +50,4 @@
         </plugins>
     </build>
 
-    <dependencies>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter</artifactId>
-            <version>${junit-jupiter.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.vintage</groupId>
-            <artifactId>junit-vintage-engine</artifactId>
-            <version>${junit-jupiter.version}</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
 </project>

guava-modules/pom.xml

@@ -22,16 +22,6 @@
         <module>guava-21</module>
     </modules>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.22.2</version>
-            </plugin>
-        </plugins>
-    </build>
-
     <dependencies>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
@@ -46,4 +36,15 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.2</version>
+            </plugin>
+        </plugins>
+    </build>
+
 </project>

guava/README.md

@@ -12,5 +12,4 @@ This module contains articles a Google Guava
 - [Guide to Mathematical Utilities in Guava](https://www.baeldung.com/guava-math)
 - [Bloom Filter in Java using Guava](https://www.baeldung.com/guava-bloom-filter)
 - [Quick Guide to the Guava RateLimiter](https://www.baeldung.com/guava-rate-limiter)
-- [Introduction to Guava Throwables](https://www.baeldung.com/guava-throwables)
 - [Guava Cache](https://www.baeldung.com/guava-cache)

guava/pom.xml

@@ -15,25 +15,6 @@
         <relativePath>../parent-java</relativePath>
     </parent>
 
-    <build>
-        <finalName>guava</finalName>
-
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.22.2</version>
-            </plugin>
-        </plugins>
-    </build>
-
     <dependencies>
         <dependency>
             <groupId>org.apache.commons</groupId>
@@ -62,6 +43,25 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <finalName>guava</finalName>
+
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.2</version>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <!-- testing -->
         <junit-jupiter.version>5.6.2</junit-jupiter.version>

image-processing/pom.xml

@@ -60,6 +60,27 @@
             <artifactId>tesseract-platform</artifactId>
             <version>${tesseract-platform.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.imgscalr</groupId>
+            <artifactId>imgscalr-lib</artifactId>
+            <version>${imgscalr-version}</version>
+        </dependency>
+        <dependency>
+            <groupId>net.coobird</groupId>
+            <artifactId>thumbnailator</artifactId>
+            <version>${thumbnailator-version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.github.downgoon</groupId>
+            <artifactId>marvin</artifactId>
+            <version>${marvin-version}</version>
+            <type>pom</type>
+         </dependency>
+        <dependency>
+            <groupId>com.github.downgoon</groupId>
+            <artifactId>MarvinPlugins</artifactId>
+            <version>${marvin-version}</version>
+        </dependency>
     </dependencies>
     
     <properties>
@@ -69,6 +90,9 @@
         <tess4j.version>4.5.1</tess4j.version>
         <tesseract-platform.version>4.1.0-1.5.2</tesseract-platform.version>
         <opencv.version>3.4.2-0</opencv.version>
+        <imgscalr-version>4.2</imgscalr-version>
+        <thumbnailator-version>0.4.11</thumbnailator-version>
+        <marvin-version>1.5.5</marvin-version>
     </properties>
 
 </project>

image-processing/src/main/java/com/baeldung/image/resize/core/Graphics2DExample.java

@@ -0,0 +1,25 @@
+package com.baeldung.image.resize.core;
+
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+public class Graphics2DExample {
+
+    static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
+        BufferedImage resizedImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
+        Graphics2D graphics2D = resizedImage.createGraphics();
+        graphics2D.drawImage(originalImage, 0, 0, targetWidth, targetHeight, null);
+        graphics2D.dispose();
+        return resizedImage;
+    }
+
+    public static void main(String[] args) throws IOException {
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = resizeImage(originalImage, 200, 200);
+        ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-graphics2d.jpg"));
+    }
+}

image-processing/src/main/java/com/baeldung/image/resize/core/ImageScaledInstanceExample.java

@@ -0,0 +1,24 @@
+package com.baeldung.image.resize.core;
+
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+public class ImageScaledInstanceExample {
+    static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
+        Image resultingImage = originalImage.getScaledInstance(targetWidth, targetHeight, Image.SCALE_DEFAULT);
+        BufferedImage bufferedImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
+        bufferedImage.getGraphics()
+            .drawImage(resultingImage, 0, 0, null);
+        return bufferedImage;
+    }
+
+    public static void main(String[] args) throws IOException {
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = resizeImage(originalImage, 200, 200);
+        ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-scaledinstance.jpg"));
+    }
+}

image-processing/src/main/java/com/baeldung/image/resize/imgscalr/ImgscalrExample.java

@@ -0,0 +1,24 @@
+package com.baeldung.image.resize.imgscalr;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+
+import javax.imageio.ImageIO;
+
+import org.imgscalr.Scalr;
+
+public class ImgscalrExample {
+    public static BufferedImage simpleResizeImage(BufferedImage originalImage, int targetWidth) {
+        return Scalr.resize(originalImage, targetWidth);
+    }
+
+    public static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
+        return Scalr.resize(originalImage, Scalr.Method.AUTOMATIC, Scalr.Mode.AUTOMATIC, targetWidth, targetHeight, Scalr.OP_ANTIALIAS);
+    }
+
+    public static void main(String[] args) throws Exception {
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = resizeImage(originalImage, 200, 200);
+        ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-imgscalr.jpg"));
+    }
+}

image-processing/src/main/java/com/baeldung/image/resize/marvin/MarvinExample.java

@@ -0,0 +1,29 @@
+package com.baeldung.image.resize.marvin;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import org.marvinproject.image.transform.scale.Scale;
+
+import marvin.image.MarvinImage;
+
+public class MarvinExample {
+    static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) {
+        MarvinImage image = new MarvinImage(originalImage);
+        Scale scale = new Scale();
+        scale.load();
+        scale.setAttribute("newWidth", targetWidth);
+        scale.setAttribute("newHeight", targetHeight);
+        scale.process(image.clone(), image, null, null, false);
+        return image.getBufferedImageNoAlpha();
+    }
+
+    public static void main(String args[]) throws IOException {
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = resizeImage(originalImage, 200, 200);
+        ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-marvin.jpg"));
+    }
+}

image-processing/src/main/java/com/baeldung/image/resize/thumbnailator/ThumbnailatorExample.java

@@ -0,0 +1,31 @@
+package com.baeldung.image.resize.thumbnailator;
+
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import net.coobird.thumbnailator.Thumbnails;
+
+public class ThumbnailatorExample {
+    static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) throws IOException {
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        Thumbnails.of(originalImage)
+            .size(targetWidth, targetHeight)
+            .outputFormat("JPEG")
+            .outputQuality(0.90)
+            .toOutputStream(outputStream);
+        byte[] data = outputStream.toByteArray();
+        ByteArrayInputStream inputStream = new ByteArrayInputStream(data);
+        return ImageIO.read(inputStream);
+    }
+
+    public static void main(String[] args) throws Exception {
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = resizeImage(originalImage, 200, 200);
+        ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage-resized-thumbnailator.jpg"));
+    }
+}

image-processing/src/test/java/com/baeldung/image/resize/core/Graphics2DExampleUnitTest.java

@@ -0,0 +1,71 @@
+package com.baeldung.image.resize.core;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import org.junit.Test;
+
+public class Graphics2DExampleUnitTest {
+
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenImageGeneratedWithoutError() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = Graphics2DExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNotNull(outputImage);
+    }
+
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenOutputImageSizeIsValid() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        assertNotEquals(originalImage.getWidth(), targetWidth);
+        assertNotEquals(originalImage.getHeight(), targetHeight);
+        BufferedImage outputImage = Graphics2DExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertEquals(outputImage.getWidth(), targetWidth);
+        assertEquals(outputImage.getHeight(), targetHeight);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenTargetWidthIsZero_thenErrorIsThrown() throws IOException {
+        int targetWidth = 0;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = Graphics2DExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenTargetHeightIsZero_thenErrorIsThrown() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 0;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = Graphics2DExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageDoesNotExist_thenErrorIsNotThrownAndImageIsGenerated() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage outputImage = Graphics2DExample.resizeImage(null, targetWidth, targetHeight);
+
+        assertNotNull(outputImage);
+        assertEquals(outputImage.getWidth(), targetWidth);
+        assertEquals(outputImage.getHeight(), targetHeight);
+    }
+}

image-processing/src/test/java/com/baeldung/image/resize/core/ImageScaledInstanceExampleUnitTest.java

@@ -0,0 +1,69 @@
+package com.baeldung.image.resize.core;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import org.junit.Test;
+
+public class ImageScaledInstanceExampleUnitTest {
+
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenImageGeneratedWithoutError() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = ImageScaledInstanceExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNotNull(outputImage);
+    }
+
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenOutputImageSizeIsValid() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        assertNotEquals(originalImage.getWidth(), targetWidth);
+        assertNotEquals(originalImage.getHeight(), targetHeight);
+        BufferedImage outputImage = ImageScaledInstanceExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertEquals(outputImage.getWidth(), targetWidth);
+        assertEquals(outputImage.getHeight(), targetHeight);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenTargetWidthIsZero_thenErrorIsThrown() throws IOException {
+        int targetWidth = 0;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = ImageScaledInstanceExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenTargetHeightIsZero_thenErrorIsThrown() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 0;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = ImageScaledInstanceExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenOriginalImageDoesNotExist_thenErrorIsThrown() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage outputImage = ImageScaledInstanceExample.resizeImage(null, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+}

image-processing/src/test/java/com/baeldung/image/resize/imgscalr/ImgscalrExampleUnitTest.java

@@ -0,0 +1,69 @@
+package com.baeldung.image.resize.imgscalr;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import org.junit.Test;
+
+public class ImgscalrExampleUnitTest {
+
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenImageGeneratedWithoutError() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = ImgscalrExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNotNull(outputImage);
+    }
+
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenOutputImageSizeIsValid() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        assertNotEquals(originalImage.getWidth(), targetWidth);
+        assertNotEquals(originalImage.getHeight(), targetHeight);
+        BufferedImage outputImage = ImgscalrExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertEquals(outputImage.getWidth(), targetWidth);
+        assertEquals(outputImage.getHeight(), targetHeight);
+    }
+
+    @Test(expected = Test.None.class)
+    public void whenTargetWidthIsZero_thenImageIsCreated() throws IOException {
+        int targetWidth = 0;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = ImgscalrExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNotNull(outputImage);
+    }
+
+    @Test(expected = Test.None.class)
+    public void whenTargetHeightIsZero_thenImageIsCreated() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 0;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = ImgscalrExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNotNull(outputImage);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenOriginalImageDoesNotExist_thenErrorIsThrown() {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage outputImage = ImgscalrExample.resizeImage(null, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+}

image-processing/src/test/java/com/baeldung/image/resize/marvin/MarvinExampleUnitTest.java

@@ -0,0 +1,68 @@
+package com.baeldung.image.resize.marvin;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import org.junit.Test;
+
+public class MarvinExampleUnitTest {
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenImageGeneratedWithoutError() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = MarvinExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNotNull(outputImage);
+    }
+
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenOutputImageSizeIsValid() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        assertNotEquals(originalImage.getWidth(), targetWidth);
+        assertNotEquals(originalImage.getHeight(), targetHeight);
+        BufferedImage outputImage = MarvinExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertEquals(outputImage.getWidth(), targetWidth);
+        assertEquals(outputImage.getHeight(), targetHeight);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenTargetWidthIsZero_thenErrorIsThrown() throws IOException {
+        int targetWidth = 0;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = MarvinExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenTargetHeightIsZero_thenErrorIsThrown() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 0;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = MarvinExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenOriginalImageDoesNotExist_thenErrorIsThrown() {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage outputImage = MarvinExample.resizeImage(null, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+}

image-processing/src/test/java/com/baeldung/image/resize/thumbnailator/ThumbnailatorExampleUnitTest.java

@@ -0,0 +1,68 @@
+package com.baeldung.image.resize.thumbnailator;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import org.junit.Test;
+
+public class ThumbnailatorExampleUnitTest {
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenImageGeneratedWithoutError() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = ThumbnailatorExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNotNull(outputImage);
+    }
+
+    @Test(expected = Test.None.class)
+    public void whenOriginalImageExistsAndTargetSizesAreNotZero_thenOutputImageSizeIsValid() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        assertNotEquals(originalImage.getWidth(), targetWidth);
+        assertNotEquals(originalImage.getHeight(), targetHeight);
+        BufferedImage outputImage = ThumbnailatorExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertEquals(outputImage.getWidth(), targetWidth);
+        assertEquals(outputImage.getHeight(), targetHeight);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenTargetWidthIsZero_thenErrorIsThrown() throws IOException {
+        int targetWidth = 0;
+        int targetHeight = 200;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = ThumbnailatorExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenTargetHeightIsZero_thenErrorIsThrown() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 0;
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = ThumbnailatorExample.resizeImage(originalImage, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+
+    @Test(expected = Exception.class)
+    public void whenOriginalImageDoesNotExist_thenErrorIsThrown() throws IOException {
+        int targetWidth = 200;
+        int targetHeight = 200;
+        BufferedImage outputImage = ThumbnailatorExample.resizeImage(null, targetWidth, targetHeight);
+
+        assertNull(outputImage);
+    }
+}

jackson-modules/jackson-conversions-2/src/test/java/com/baeldung/jackson/csv/CsvUnitTest.java

@@ -7,48 +7,59 @@ import java.io.IOException;
 import java.nio.charset.Charset;
 import java.util.List;
 
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Test;
 
 import com.fasterxml.jackson.core.JsonParseException;
 import com.fasterxml.jackson.databind.JsonMappingException;
 import com.google.common.io.Files;
 
-
 public class CsvUnitTest {
 
+    private File csvFromJson;
+    private File jsonFromCsv;
+    private File formattedCsvFromJson;
+    
+    @Before
+    public void setup() {
+        csvFromJson = new File("src/main/resources/csv/csvFromJson.csv");
+        jsonFromCsv = new File("src/main/resources/csv/jsonFromCsv.json");
+        formattedCsvFromJson = new File("src/main/resources/csv/formattedCsvFromJson.csv");
+    }
+
+    @After
+    public void cleanup() {
+        csvFromJson.deleteOnExit();
+        jsonFromCsv.deleteOnExit();
+        formattedCsvFromJson.deleteOnExit();
+    }
+
     @Test
     public void givenJsonInput_thenWriteCsv() throws JsonParseException, JsonMappingException, IOException {
-        JsonCsvConverter.JsonToCsv(new File("src/main/resources/csv/orderLines.json"),
-            new File("src/main/resources/csv/csvFromJson.csv"));
-        
-        assertEquals(readFile("src/main/resources/csv/csvFromJson.csv"),
-            readFile("src/test/resources/csv/expectedCsvFromJson.csv"));
+        JsonCsvConverter.JsonToCsv(new File("src/main/resources/csv/orderLines.json"), csvFromJson);
+
+        assertEquals(readFile(csvFromJson.getAbsolutePath()), readFile("src/test/resources/csv/expectedCsvFromJson.csv"));
     }
-    
+
     @Test
     public void givenCsvInput_thenWritesJson() throws JsonParseException, JsonMappingException, IOException {
-        JsonCsvConverter.csvToJson(new File("src/main/resources/csv/orderLines.csv"),
-            new File("src/main/resources/csv/jsonFromCsv.json"));
-        
-        assertEquals(readFile("src/main/resources/csv/jsonFromCsv.json"),
-            readFile("src/test/resources/csv/expectedJsonFromCsv.json"));
-        
+        JsonCsvConverter.csvToJson(new File("src/main/resources/csv/orderLines.csv"), jsonFromCsv);
+
+        assertEquals(readFile(jsonFromCsv.getAbsolutePath()), readFile("src/test/resources/csv/expectedJsonFromCsv.json"));
+
     }
-    
+
     @Test
     public void givenJsonInput_thenWriteFormattedCsvOutput() throws JsonParseException, JsonMappingException, IOException {
-        JsonCsvConverter.JsonToFormattedCsv(new File("src/main/resources/csv/orderLines.json"),
-            new File("src/main/resources/csv/formattedCsvFromJson.csv"));
+        JsonCsvConverter.JsonToFormattedCsv(new File("src/main/resources/csv/orderLines.json"), formattedCsvFromJson);
+
+        assertEquals(readFile(formattedCsvFromJson.getAbsolutePath()), readFile("src/test/resources/csv/expectedFormattedCsvFromJson.csv"));
 
-        assertEquals(readFile("src/main/resources/csv/formattedCsvFromJson.csv"),
-            readFile("src/test/resources/csv/expectedFormattedCsvFromJson.csv"));
-        
     }
-    
+
     private List<String> readFile(String filename) throws IOException {
         return Files.readLines(new File(filename), Charset.forName("utf-8"));
     }
-    
-    
-}
-;
+
+};

jackson-modules/jackson-conversions-2/src/test/java/com/baeldung/jackson/yaml/YamlUnitTest.java

@@ -12,6 +12,7 @@ import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -25,12 +26,19 @@ import com.fasterxml.jackson.dataformat.yaml.YAMLGenerator.Feature;
 
 public class YamlUnitTest {
     private ObjectMapper mapper;
+    private File orderOutput;
 
     @Before
     public void setup() {
         mapper = new ObjectMapper(new YAMLFactory().disable(Feature.WRITE_DOC_START_MARKER));
         mapper.findAndRegisterModules();
         mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
+        orderOutput = new File("src/test/resources/yaml/orderOutput.yaml");
+    }
+    
+    @After
+    public void cleanup() {
+        orderOutput.deleteOnExit();
     }
 
     @Test
@@ -53,9 +61,9 @@ public class YamlUnitTest {
             LocalDate.parse("2019-04-18", DateTimeFormatter.ISO_DATE), 
             "Customer, Jane", 
             lines);
-        mapper.writeValue(new File("src/test/resources/yaml/orderOutput.yaml"), order);
+        mapper.writeValue(orderOutput, order);
 
-        File outputYaml = new File("src/test/resources/yaml/orderOutput.yaml");
+        File outputYaml = new File(orderOutput.getAbsolutePath());
         assertTrue(outputYaml.exists());
     }
 }

jackson-modules/pom.xml

@@ -23,16 +23,6 @@
         <module>jackson-exceptions</module>
     </modules>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.22.2</version>
-            </plugin>
-        </plugins>
-    </build>
-
     <dependencies>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
@@ -60,6 +50,16 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.2</version>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <junit-jupiter.version>5.6.2</junit-jupiter.version>
     </properties>

jackson-simple/pom.xml

@@ -13,25 +13,6 @@
         <relativePath>../parent-java</relativePath>
     </parent>
 
-    <build>
-        <finalName>jackson-simple</finalName>
-
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-                <filtering>true</filtering>
-            </resource>
-        </resources>
-
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>2.22.2</version>
-            </plugin>
-        </plugins>
-    </build>
-
     <dependencies>
         <!--jackson for xml -->
         <dependency>
@@ -61,6 +42,25 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <finalName>jackson-simple</finalName>
+
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.2</version>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <!-- testing -->
         <junit-jupiter.version>5.6.2</junit-jupiter.version>

jee-7/pom.xml

@@ -274,10 +274,6 @@
             <activation>
                 <activeByDefault>true</activeByDefault>
             </activation>
-            <properties>
-                <serverProfile>standalone-full.xml</serverProfile>
-                <serverRoot>${project.build.directory}/wildfly-${wildfly.version}</serverRoot>
-            </properties>
             <dependencies>
                 <dependency>
                     <groupId>io.undertow</groupId>
@@ -347,15 +343,6 @@
                             </execution>
                         </executions>
                     </plugin>
-                    <plugin>
-                        <artifactId>maven-surefire-plugin</artifactId>
-                        <version>${maven-surefire-plugin.version}</version>
-                        <configuration>
-                            <environmentVariables>
-                                <JBOSS_HOME>${project.build.directory}/wildfly-${wildfly.version}</JBOSS_HOME>
-                            </environmentVariables>
-                        </configuration>
-                    </plugin>
                 </plugins>
             </build>
         </profile>

jee-7/src/test/resources/arquillian.xml

@@ -0,0 +1,23 @@
+<arquillian xmlns="http://jboss.org/schema/arquillian" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://jboss.org/schema/arquillian http://jboss.org/schema/arquillian/arquillian_1_0.xsd">
+
+    <container qualifier="wildfly-managed" default="true">
+        <configuration>
+            <property name="jbossHome">target/wildfly-8.2.1.Final</property>
+            <property name="serverConfig">standalone.xml</property>
+            <property name="outputToConsole">true</property>
+            <property name="managementPort">9990</property>
+            <property name="javaVmArguments">-Djboss.http.port=8639</property>
+        </configuration>
+    </container>
+
+    <container qualifier="wildfly-remote">
+        <configuration>
+            <property name="managementAddress">127.0.0.1</property>
+            <property name="managementPort">9990</property>
+            <property name="username">admin</property>
+            <property name="password">pass</property>
+            <property name="allowConnectingToRunningServer">true</property>
+        </configuration>
+    </container>
+
+</arquillian>

libraries-6/README.md

@@ -14,4 +14,5 @@ Remember, for advanced libraries like [Jackson](/jackson) and [JUnit](/testing-m
 - [Introduction to Functional Java](https://www.baeldung.com/java-functional-library)
 - [A Guide to the Reflections Library](https://www.baeldung.com/reflections-library)
 - [Exactly Once Processing in Kafka](https://www.baeldung.com/kafka-exactly-once)
+- [Introduction to Protonpack](https://www.baeldung.com/java-protonpack)
 - More articles [[<-- prev]](/libraries-5)

libraries-6/src/test/java/com/baeldung/protonpack/ProtonpackUnitTest.java

@@ -10,8 +10,6 @@ import org.junit.Test;
 import java.util.List;
 import java.util.Optional;
 import java.util.Set;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.function.Function;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 

libraries-data-2/pom.xml

@@ -184,6 +184,24 @@
         </repository>
     </repositories>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <!-- Excludes FastR classes from compilations since they require GraalVM -->
+                    <excludes>
+                        <exclude>com/baeldung/r/FastRMean.java</exclude>
+                    </excludes>
+                    <testExcludes>
+                        <exclude>com/baeldung/r/FastRMeanUnitTest.java</exclude>						
+                    </testExcludes>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <flink.version>1.5.0</flink.version>
         <hll.version>1.6.0</hll.version>
@@ -205,21 +223,4 @@
         <kafka.version>2.5.0</kafka.version>
     </properties>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <configuration>
-                    <!-- Excludes FastR classes from compilations since they require GraalVM -->
-                    <excludes>
-                        <exclude>com/baeldung/r/FastRMean.java</exclude>
-                    </excludes>
-                    <testExcludes>
-                        <exclude>com/baeldung/r/FastRMeanUnitTest.java</exclude>						
-                    </testExcludes>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
 </project>

libraries-data-2/src/test/java/com/baeldung/univocity/ParsingServiceUnitTest.java

@@ -2,15 +2,26 @@ package com.baeldung.univocity;
 
 import static org.junit.Assert.assertEquals;
 
+import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.junit.After;
 import org.junit.Test;
 
 import com.baeldung.univocity.model.Product;
 
 public class ParsingServiceUnitTest {
 
+    @After
+    public void cleanup() {
+        File csvFile = new File("src/test/resources/outputProductList.csv");
+        csvFile.deleteOnExit();
+        
+        File textFile = new File("src/test/resources/outputProductList.txt");
+        textFile.deleteOnExit();
+    }
+    
     @Test
     public void givenCsvFile_thenParsedResultsShouldBeReturned() {
         ParsingService parsingService = new ParsingService();

libraries-testing/src/main/java/com/baeldung/serenity/spring/AdderService.java

@@ -1,8 +1,10 @@
 package com.baeldung.serenity.spring;
 
+import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Service;
 
 @Service
+@Scope("prototype")
 public class AdderService {
 
     private int num;

logging-modules/log-mdc/src/main/java/com/baeldung/mdc/TransferDemo.java

@@ -1,19 +1,21 @@
 package com.baeldung.mdc;
 
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
-import org.apache.log4j.Logger;
-
-import com.baeldung.mdc.log4j.Log4JRunnable;
-import com.baeldung.mdc.log4j2.Log4J2Runnable;
+import com.baeldung.mdc.pool.MdcAwareThreadPoolExecutor;
 import com.baeldung.mdc.slf4j.Slf4jRunnable;
 
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.ThreadPoolExecutor.AbortPolicy;
+
+import static java.util.concurrent.TimeUnit.MINUTES;
+
 public class TransferDemo {
 
     public static void main(String[] args) {
 
-        ExecutorService executor = Executors.newFixedThreadPool(3);
+        ExecutorService executor = new MdcAwareThreadPoolExecutor(3, 3, 0, MINUTES,
+          new LinkedBlockingQueue<>(), Thread::new, new AbortPolicy());
+
         TransactionFactory transactionFactory = new TransactionFactory();
 
         for (int i = 0; i < 10; i++) {

logging-modules/log-mdc/src/main/java/com/baeldung/mdc/pool/MdcAwareThreadPoolExecutor.java

@@ -0,0 +1,31 @@
+package com.baeldung.mdc.pool;
+
+import org.apache.logging.log4j.ThreadContext;
+import org.slf4j.MDC;
+
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.RejectedExecutionHandler;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+public class MdcAwareThreadPoolExecutor extends ThreadPoolExecutor {
+
+    public MdcAwareThreadPoolExecutor(int corePoolSize,
+      int maximumPoolSize,
+      long keepAliveTime,
+      TimeUnit unit,
+      BlockingQueue<Runnable> workQueue,
+      ThreadFactory threadFactory,
+      RejectedExecutionHandler handler) {
+        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory, handler);
+    }
+
+    @Override
+    protected void afterExecute(Runnable r, Throwable t) {
+        System.out.println("Cleaning the MDC context");
+        MDC.clear();
+        org.apache.log4j.MDC.clear();
+        ThreadContext.clearAll();
+    }
+}

logging-modules/log-mdc/src/main/java/com/baeldung/mdc/slf4j/Slf4jRunnable.java

@@ -18,7 +18,7 @@ public class Slf4jRunnable implements Runnable {
 
         new Slf4TransferService().transfer(tx.getAmount());
 
-        MDC.clear();
+        // MDC.clear(); We don't need this with MdcAwareThreadPoolExecutor
 
     }
 }

machine-learning/pom.xml

@@ -6,7 +6,7 @@
     <modelVersion>4.0.0</modelVersion>
     <artifactId>machine-learning</artifactId>
     <version>1.0-SNAPSHOT</version>
-    <name>Supervised Learning</name>
+    <name>machine-learning</name>
     <packaging>jar</packaging>
 
     <parent>

maven-all/maven-custom-plugin/README.md

@@ -1,3 +0,0 @@
-### Relevant Articles:
-
-- [How to Create a Maven Plugin](https://www.baeldung.com/maven-plugin)

maven-all/maven/README.md

@@ -1,18 +0,0 @@
-## Apache Maven
-
-This module contains articles about core Apache Maven. Articles about other Maven plugins (such as the Maven WAR Plugin)
-have their own dedicated modules. 
-
-### Relevant Articles
-
-- [Guide to the Core Maven Plugins](https://www.baeldung.com/core-maven-plugins)
-- [Maven Resources Plugin](https://www.baeldung.com/maven-resources-plugin)
-- [Quick Guide to the Maven Surefire Plugin](https://www.baeldung.com/maven-surefire-plugin)
-- [The Maven Failsafe Plugin](https://www.baeldung.com/maven-failsafe-plugin)
-- [The Maven Verifier Plugin](https://www.baeldung.com/maven-verifier-plugin)
-- [The Maven Clean Plugin](https://www.baeldung.com/maven-clean-plugin)
-- [Build a Jar with Maven and Ignore the Test Results](https://www.baeldung.com/maven-ignore-test-results)
-- [Maven Project with Multiple Source Directories](https://www.baeldung.com/maven-project-multiple-src-directories)
-- [Integration Testing with Maven](https://www.baeldung.com/maven-integration-test)
-- [Apache Maven Standard Directory Layout](https://www.baeldung.com/maven-directory-structure)
-- [Multi-Module Project with Maven](https://www.baeldung.com/maven-multi-module)

maven-all/maven/maven-enforcer/README.md

@@ -1,3 +0,0 @@
-### Relevant Articles
-
-- [Maven Enforcer Plugin](https://www.baeldung.com/maven-enforcer-plugin)

maven-all/version-collision/pom.xml

@@ -0,0 +1,54 @@
+<?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-all</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>version-collision</artifactId>
+    <packaging>pom</packaging>
+    <modules>
+        <module>project-a</module>
+        <module>project-b</module>
+        <module>project-collision</module>
+    </modules>
+
+    <!--comment section below to provoke version collision in project-collision module-->
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>com.google.guava</groupId>
+                <artifactId>guava</artifactId>
+                <version>29.0-jre</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <!-- uncomment section below to ban the use of transitive dependencies -->
+    <!--    <build>-->
+    <!--        <plugins>-->
+    <!--            <plugin>-->
+    <!--                <groupId>org.apache.maven.plugins</groupId>-->
+    <!--                <artifactId>maven-enforcer-plugin</artifactId>-->
+    <!--                <version>3.0.0-M3</version>-->
+    <!--                <executions>-->
+    <!--                    <execution>-->
+    <!--                        <id>enforce-banned-dependencies</id>-->
+    <!--                        <goals>-->
+    <!--                            <goal>enforce</goal>-->
+    <!--                        </goals>-->
+    <!--                        <configuration>-->
+    <!--                            <rules>-->
+    <!--                                <banTransitiveDependencies/>-->
+    <!--                            </rules>-->
+    <!--                        </configuration>-->
+    <!--                    </execution>-->
+    <!--                </executions>-->
+    <!--            </plugin>-->
+    <!--        </plugins>-->
+    <!--    </build>-->
+</project>

maven-all/version-collision/project-a/pom.xml

@@ -0,0 +1,21 @@
+<?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>version-collision</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>project-a</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>22.0</version>
+        </dependency>
+    </dependencies>
+</project>

maven-all/version-collision/project-b/pom.xml

@@ -0,0 +1,21 @@
+<?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>version-collision</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>project-b</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>29.0-jre</version>
+        </dependency>
+    </dependencies>
+</project>

maven-all/version-collision/project-collision/pom.xml

@@ -0,0 +1,34 @@
+<?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>version-collision</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>project-collision</artifactId>
+
+
+    <dependencies>
+        <dependency>
+            <groupId>com.baeldung</groupId>
+            <artifactId>project-a</artifactId>
+            <version>0.0.1-SNAPSHOT</version>
+            <!-- uncomment to exclude guava transitive artifact from module -->
+            <!--            <exclusions>-->
+            <!--                <exclusion>-->
+            <!--                    <groupId>com.google.guava</groupId>-->
+            <!--                    <artifactId>guava</artifactId>-->
+            <!--                </exclusion>-->
+            <!--            </exclusions>-->
+        </dependency>
+        <dependency>
+            <groupId>com.baeldung</groupId>
+            <artifactId>project-b</artifactId>
+            <version>0.0.1-SNAPSHOT</version>
+        </dependency>
+    </dependencies>
+</project>

maven-all/version-collision/project-collision/src/test/java/com/baeldung/version/collision/VersionCollisionUnitTest.java

@@ -0,0 +1,14 @@
+package com.baeldung.version.collision;
+
+import com.google.common.util.concurrent.Futures;
+import org.junit.Test;
+
+import static org.hamcrest.CoreMatchers.notNullValue;
+import static org.junit.Assert.assertThat;
+
+public class VersionCollisionUnitTest {
+    @Test
+    public void whenVersionCollisionDoesNotExist_thenShouldCompile() {
+        assertThat(Futures.immediateVoidFuture(), notNullValue());
+    }
+}

maven-modules/README.md

@@ -5,4 +5,5 @@ This module contains articles about Apache Maven. Please refer to its submodules
 ### Relevant Articles
 
 - [Apache Maven Tutorial](https://www.baeldung.com/maven)
-- [Find Unused Maven Dependencies](https://www.baeldung.com/maven-unused-dependencies)
+- [Apache Maven Standard Directory Layout](https://www.baeldung.com/maven-directory-structure)
+- [Multi-Module Project with Maven](https://www.baeldung.com/maven-multi-module)

maven-modules/maven-custom-plugin/README.md

@@ -0,0 +1,7 @@
+## Apache Maven
+
+This module contains articles about creating a custom plugin in Maven.
+
+### Relevant Articles
+
+- [How to Create a Maven Plugin](https://www.baeldung.com/maven-plugin)

maven-modules/maven-custom-plugin/pom.xml

@@ -0,0 +1,21 @@
+<?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>maven-custom-plugin</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>maven-custom-plugin</name>
+    <packaging>pom</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>maven-modules</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+
+    <modules>
+        <module>counter-maven-plugin</module>
+        <module>usage-example</module>
+    </modules>
+
+</project>

maven-modules/maven-custom-plugin/usage-example/pom.xml

@@ -5,7 +5,7 @@
     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>
     <groupId>com.baeldung</groupId>
-    <artifactId>example</artifactId>
+    <artifactId>usage-example</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <packaging>pom</packaging>
 

maven-modules/maven-integration-test/README.md

@@ -0,0 +1,10 @@
+## Apache Maven
+
+This module contains articles about Integration Testing with Maven and related plugins. 
+
+### Relevant Articles
+
+- [Integration Testing with Maven](https://www.baeldung.com/maven-integration-test)
+- [Build a Jar with Maven and Ignore the Test Results](https://www.baeldung.com/maven-ignore-test-results)
+- [Quick Guide to the Maven Surefire Plugin](https://www.baeldung.com/maven-surefire-plugin)
+- [The Maven Failsafe Plugin](https://www.baeldung.com/maven-failsafe-plugin)

maven-modules/maven-integration-test/pom.xml

@@ -2,10 +2,9 @@
 <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>maven</artifactId>
+    <artifactId>maven-integration-test</artifactId>
     <version>0.0.1-SNAPSHOT</version>
-    <name>maven</name>
-    <packaging>pom</packaging>
+    <name>maven-integration-test</name>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -14,11 +13,6 @@
         <relativePath>../..</relativePath>
     </parent>
 
-    <modules>
-        <module>custom-rule</module>
-        <module>maven-enforcer</module>
-    </modules>
-
     <dependencies>
         <dependency>
             <groupId>org.glassfish.jersey.containers</groupId>
@@ -126,20 +120,6 @@
                     </execution>
                 </executions>
             </plugin>
-            <plugin>
-                <artifactId>maven-verifier-plugin</artifactId>
-                <version>${maven.verifier.version}</version>
-                <configuration>
-                    <verificationFile>input-resources/verifications.xml</verificationFile>
-                </configuration>
-                <executions>
-                    <execution>
-                        <goals>
-                            <goal>verify</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
             <plugin>
                 <artifactId>maven-clean-plugin</artifactId>
                 <version>${maven.clean.version}</version>
@@ -156,17 +136,6 @@
                 <artifactId>build-helper-maven-plugin</artifactId>
                 <version>${maven.build.helper.version}</version>
                 <executions>
-                    <execution>
-                        <phase>generate-sources</phase>
-                        <goals>
-                            <goal>add-source</goal>
-                        </goals>
-                        <configuration>
-                            <sources>
-                                <source>src/main/another-src</source>
-                            </sources>
-                        </configuration>
-                    </execution>
                     <execution>
                         <id>add-integration-test-source</id>
                         <phase>generate-test-sources</phase>