Merge remote-tracking branch 'upstream/master'

apache-olingo/pom.xml

@@ -83,4 +83,4 @@
         <olingo.version>2.0.11</olingo.version>
     </properties>
 
-</project>
+</project>

core-java-modules/core-java-9-new-features/pom.xml

@@ -34,6 +34,28 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <finalName>core-java-9-new-features</finalName>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <pluginRepositories>
+        <pluginRepository>
+            <id>apache.snapshots</id>
+            <url>https://repository.apache.org/snapshots/</url>
+        </pluginRepository>
+    </pluginRepositories>
+
     <profiles>
         <profile>
             <id>incubator-features</id>
@@ -126,28 +148,6 @@
         </profile>
     </profiles>
 
-    <build>
-        <finalName>core-java-9-new-features</finalName>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>${maven-compiler-plugin.version}</version>
-                <configuration>
-                    <source>${maven.compiler.source}</source>
-                    <target>${maven.compiler.target}</target>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-
-    <pluginRepositories>
-        <pluginRepository>
-            <id>apache.snapshots</id>
-            <url>https://repository.apache.org/snapshots/</url>
-        </pluginRepository>
-    </pluginRepositories>
-
     <properties>
         <rxjava.version>3.0.0</rxjava.version>
         <awaitility.version>4.0.2</awaitility.version>

core-java-modules/core-java-concurrency-advanced-4/README.md

@@ -5,3 +5,4 @@
 - [Start Two Threads at the Exact Same Time in Java](https://www.baeldung.com/java-start-two-threads-at-same-time)
 - [Volatile Variables and Thread Safety](https://www.baeldung.com/java-volatile-variables-thread-safety)
 - [Producer-Consumer Problem With Example in Java](https://www.baeldung.com/java-producer-consumer-problem)
+- [Acquire a Lock by a Key in Java](https://www.baeldung.com/java-acquire-lock-by-key)

core-java-modules/core-java-concurrency-advanced-4/src/main/java/com/baeldung/producerconsumer/Consumer.java

@@ -0,0 +1,51 @@
+package com.baeldung.producerconsumer;
+
+public class Consumer implements Runnable {
+    private final DataQueue dataQueue;
+    private volatile boolean runFlag;
+
+    public Consumer(DataQueue dataQueue) {
+        this.dataQueue = dataQueue;
+        runFlag = true;
+    }
+
+    @Override
+    public void run() {
+        consume();
+    }
+
+    public void consume() {
+        while (runFlag) {
+            Message message;
+            if (dataQueue.isEmpty()) {
+                try {
+                    dataQueue.waitOnEmpty();
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                    break;
+                }
+            }
+            if (!runFlag) {
+                break;
+            }
+            message = dataQueue.remove();
+            dataQueue.notifyAllForFull();
+            useMessage(message);
+        }
+        System.out.println("Consumer Stopped");
+    }
+
+    private void useMessage(Message message) {
+        if (message != null) {
+            System.out.printf("[%s] Consuming Message. Id: %d, Data: %f\n", Thread.currentThread().getName(), message.getId(), message.getData());
+
+            //Sleeping on random time to make it realistic
+            ThreadUtil.sleep((long) (message.getData() * 100));
+        }
+    }
+
+    public void stop() {
+        runFlag = false;
+        dataQueue.notifyAllForEmpty();
+    }
+}

core-java-modules/core-java-concurrency-advanced-4/src/main/java/com/baeldung/producerconsumer/DataQueue.java

@@ -0,0 +1,59 @@
+package com.baeldung.producerconsumer;
+
+import java.util.LinkedList;
+import java.util.Queue;
+
+public class DataQueue {
+    private final Queue<Message> queue = new LinkedList<>();
+    private final int maxSize;
+    private final Object FULL_QUEUE = new Object();
+    private final Object EMPTY_QUEUE = new Object();
+
+    DataQueue(int maxSize) {
+        this.maxSize = maxSize;
+    }
+
+    public boolean isFull() {
+        return queue.size() == maxSize;
+    }
+
+    public boolean isEmpty() {
+        return queue.isEmpty();
+    }
+
+    public void waitOnFull() throws InterruptedException {
+        synchronized (FULL_QUEUE) {
+            FULL_QUEUE.wait();
+        }
+    }
+
+    public void waitOnEmpty() throws InterruptedException {
+        synchronized (EMPTY_QUEUE) {
+            EMPTY_QUEUE.wait();
+        }
+    }
+
+    public void notifyAllForFull() {
+        synchronized (FULL_QUEUE) {
+            FULL_QUEUE.notifyAll();
+        }
+    }
+
+    public void notifyAllForEmpty() {
+        synchronized (EMPTY_QUEUE) {
+            EMPTY_QUEUE.notifyAll();
+        }
+    }
+
+    public void add(Message message) {
+        synchronized (queue) {
+            queue.add(message);
+        }
+    }
+
+    public Message remove() {
+        synchronized (queue) {
+            return queue.poll();
+        }
+    }
+}

core-java-modules/core-java-concurrency-advanced-4/src/main/java/com/baeldung/producerconsumer/Message.java

@@ -0,0 +1,27 @@
+package com.baeldung.producerconsumer;
+
+public class Message {
+    private int id;
+    private double data;
+
+    public Message(int id, double data) {
+        this.id = id;
+        this.data = data;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public double getData() {
+        return data;
+    }
+
+    public void setData(double data) {
+        this.data = data;
+    }
+}

core-java-modules/core-java-concurrency-advanced-4/src/main/java/com/baeldung/producerconsumer/Producer.java

@@ -0,0 +1,53 @@
+package com.baeldung.producerconsumer;
+
+public class Producer implements Runnable {
+    private final DataQueue dataQueue;
+    private volatile boolean runFlag;
+
+    private static int idSequence = 0;
+
+    public Producer(DataQueue dataQueue) {
+        this.dataQueue = dataQueue;
+        runFlag = true;
+    }
+
+    @Override
+    public void run() {
+        produce();
+    }
+
+    public void produce() {
+        while (runFlag) {
+            Message message = generateMessage();
+            while (dataQueue.isFull()) {
+                try {
+                    dataQueue.waitOnFull();
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                    break;
+                }
+            }
+            if (!runFlag) {
+                break;
+            }
+            dataQueue.add(message);
+            dataQueue.notifyAllForEmpty();
+        }
+        System.out.println("Producer Stopped");
+    }
+
+    private Message generateMessage() {
+        Message message = new Message(++idSequence, Math.random());
+        System.out.printf("[%s] Generated Message. Id: %d, Data: %f\n", Thread.currentThread().getName(), message.getId(), message.getData());
+
+        //Sleeping on random time to make it realistic
+        ThreadUtil.sleep((long) (message.getData() * 100));
+
+        return message;
+    }
+
+    public void stop() {
+        runFlag = false;
+        dataQueue.notifyAllForFull();
+    }
+}

core-java-modules/core-java-concurrency-advanced-4/src/main/java/com/baeldung/producerconsumer/ProducerConsumerDemonstrator.java

@@ -0,0 +1,69 @@
+package com.baeldung.producerconsumer;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static com.baeldung.producerconsumer.ThreadUtil.*;
+
+public class ProducerConsumerDemonstrator {
+    private static final int MAX_QUEUE_CAPACITY = 5;
+
+    public static void demoSingleProducerAndSingleConsumer() {
+        DataQueue dataQueue = new DataQueue(MAX_QUEUE_CAPACITY);
+
+        Producer producer = new Producer(dataQueue);
+        Thread producerThread = new Thread(producer);
+
+        Consumer consumer = new Consumer(dataQueue);
+        Thread consumerThread = new Thread(consumer);
+
+        producerThread.start();
+        consumerThread.start();
+
+        List<Thread> threads = new ArrayList<>();
+        threads.add(producerThread);
+        threads.add(consumerThread);
+
+        // let threads run for two seconds
+        sleep(2000);
+
+        // Stop threads
+        producer.stop();
+        consumer.stop();
+
+        waitForAllThreadsToComplete(threads);
+    }
+
+    public static void demoMultipleProducersAndMultipleConsumers() {
+        DataQueue dataQueue = new DataQueue(MAX_QUEUE_CAPACITY);
+        int producerCount = 3;
+        int consumerCount = 3;
+        List<Thread> threads = new ArrayList<>();
+        Producer producer = new Producer(dataQueue);
+        for(int i = 0; i < producerCount; i++) {
+            Thread producerThread = new Thread(producer);
+            producerThread.start();
+            threads.add(producerThread);
+        }
+        Consumer consumer = new Consumer(dataQueue);
+        for(int i = 0; i < consumerCount; i++) {
+            Thread consumerThread = new Thread(consumer);
+            consumerThread.start();
+            threads.add(consumerThread);
+        }
+
+        // let threads run for two seconds
+        sleep(2000);
+
+        // Stop threads
+        producer.stop();
+        consumer.stop();
+
+        waitForAllThreadsToComplete(threads);
+    }
+
+    public static void main(String[] args) {
+        demoSingleProducerAndSingleConsumer();
+        demoMultipleProducersAndMultipleConsumers();
+    }
+}

core-java-modules/core-java-concurrency-advanced-4/src/main/java/com/baeldung/producerconsumer/SimpleProducerConsumerDemonstrator.java

@@ -0,0 +1,60 @@
+package com.baeldung.producerconsumer;
+
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.LinkedBlockingDeque;
+
+import static com.baeldung.producerconsumer.ThreadUtil.sleep;
+
+public class SimpleProducerConsumerDemonstrator {
+    BlockingQueue<Double> blockingQueue = new LinkedBlockingDeque<>(5);
+
+    private void produce() {
+        while (true) {
+            double value = generateValue();
+            try {
+                blockingQueue.put(value);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+                break;
+            }
+            System.out.printf("[%s] Value produced: %f\n", Thread.currentThread().getName(), value);
+        }
+    }
+
+    private void consume() {
+        while (true) {
+            Double value;
+            try {
+                value = blockingQueue.take();
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+                break;
+            }
+            // Consume value
+            System.out.printf("[%s] Value consumed: %f\n", Thread.currentThread().getName(), value);
+        }
+    }
+
+    private double generateValue() {
+        return Math.random();
+    }
+
+    private void runProducerConsumer() {
+        for (int i = 0; i < 2; i++) {
+            Thread producerThread = new Thread(this::produce);
+            producerThread.start();
+        }
+
+        for (int i = 0; i < 3; i++) {
+            Thread consumerThread = new Thread(this::consume);
+            consumerThread.start();
+        }
+    }
+
+    public static void main(String[] args) {
+        SimpleProducerConsumerDemonstrator simpleProducerConsumerDemonstrator = new SimpleProducerConsumerDemonstrator();
+        simpleProducerConsumerDemonstrator.runProducerConsumer();
+        sleep(2000);
+        System.exit(0);
+    }
+}

core-java-modules/core-java-concurrency-advanced-4/src/main/java/com/baeldung/producerconsumer/ThreadUtil.java

@@ -0,0 +1,24 @@
+package com.baeldung.producerconsumer;
+
+import java.util.List;
+
+public class ThreadUtil {
+    public static void waitForAllThreadsToComplete(List<Thread> threads) {
+        for(Thread thread: threads) {
+            try {
+                thread.join();
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    public static void sleep(long interval) {
+        try {
+            // Wait for some time to demonstrate threads
+            Thread.sleep(interval);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+}

core-java-modules/core-java-concurrency-basic-3/pom.xml

@@ -24,4 +24,4 @@
         </resources>
     </build>
 
-</project>
+</project>

core-java-modules/core-java-date-operations-1/pom.xml

@@ -25,7 +25,6 @@
             <artifactId>commons-lang3</artifactId>
             <version>${commons-lang3.version}</version>
         </dependency>
-
         <dependency>
             <groupId>com.darwinsys</groupId>
             <artifactId>hirondelle-date4j</artifactId>

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

@@ -2,3 +2,4 @@
 
 - [Java ArrayIndexOutOfBoundsException](https://www.baeldung.com/java-arrayindexoutofboundsexception)
 - [Java Missing Return Statement](https://www.baeldung.com/java-missing-return-statement)
+- [Convert long to int Type in Java](https://www.baeldung.com/java-convert-long-to-int)

core-java-modules/core-java-jar/pom.xml

@@ -259,7 +259,7 @@
                 </plugins>
             </build>
         </profile>
-       
+
     </profiles>
 
     <properties>

core-java-modules/core-java-jvm/pom.xml

@@ -64,13 +64,6 @@
         </dependency>
     </dependencies>
 
-    <properties>
-        <javaassist.version>3.27.0-GA</javaassist.version>
-        <sun.tools.version>1.8.0</sun.tools.version>
-        <jol-core.version>0.10</jol-core.version>
-        <asm.version>8.0.1</asm.version>
-        <bcel.version>6.5.0</bcel.version>
-    </properties>
     <profiles>
         <!-- java instrumentation profiles to build jars -->
         <profile>
@@ -181,4 +174,12 @@
         </profile>
     </profiles>
 
+    <properties>
+        <javaassist.version>3.27.0-GA</javaassist.version>
+        <sun.tools.version>1.8.0</sun.tools.version>
+        <jol-core.version>0.10</jol-core.version>
+        <asm.version>8.0.1</asm.version>
+        <bcel.version>6.5.0</bcel.version>
+    </properties>
+
 </project>

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

@@ -10,3 +10,4 @@ This module contains articles about core features in the Java language
 - [Tiered Compilation in JVM](https://www.baeldung.com/jvm-tiered-compilation)
 - [Fixing the “Declared package does not match the expected package” Error](https://www.baeldung.com/java-declared-expected-package-error)
 - [Chaining Constructors in Java](https://www.baeldung.com/java-chain-constructors)
+- [Difference Between POJO, JavaBeans, DTO and VO](https://www.baeldung.com/java-pojo-javabeans-dto-vo)

core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeeBean.java

@@ -0,0 +1,48 @@
+package com.baeldung.employee;
+
+import java.io.Serializable;
+import java.time.LocalDate;
+
+public class EmployeeBean implements Serializable {
+
+    private static final long serialVersionUID = -3760445487636086034L;
+
+    private String firstName;
+    private String lastName;
+    private LocalDate startDate;
+
+    public EmployeeBean() {
+
+    }
+
+    public EmployeeBean(String firstName, String lastName, LocalDate startDate) {
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.startDate = startDate;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public LocalDate getStartDate() {
+        return startDate;
+    }
+
+    public void setStartDate(LocalDate startDate) {
+        this.startDate = startDate;
+    }
+
+}

core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeeDTO.java

@@ -0,0 +1,34 @@
+package com.baeldung.employee;
+
+import java.time.LocalDate;
+
+public class EmployeeDTO {
+
+    private String firstName;
+    private String lastName;
+    private LocalDate startDate;
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public LocalDate getStartDate() {
+        return startDate;
+    }
+
+    public void setStartDate(LocalDate startDate) {
+        this.startDate = startDate;
+    }
+}

core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeePOJO.java

@@ -0,0 +1,49 @@
+package com.baeldung.employee;
+
+import java.time.LocalDate;
+import java.util.Objects;
+
+public class EmployeePOJO {
+
+    private String firstName;
+    private String lastName;
+    private LocalDate startDate;
+
+    public EmployeePOJO(String firstName, String lastName, LocalDate startDate) {
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.startDate = startDate;
+    }
+
+    public String name() {
+        return this.firstName + " " + this.lastName;
+    }
+
+    public LocalDate getStart() {
+        return this.startDate;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public LocalDate getStartDate() {
+        return startDate;
+    }
+
+    public void setStartDate(LocalDate startDate) {
+        this.startDate = startDate;
+    }
+}

core-java-modules/core-java-lang-4/src/main/java/com/baeldung/employee/EmployeeVO.java

@@ -0,0 +1,40 @@
+package com.baeldung.employee;
+
+import java.time.LocalDate;
+import java.util.Objects;
+
+public class EmployeeVO {
+    private String firstName;
+    private String lastName;
+    private LocalDate startDate;
+
+    public EmployeeVO(String firstName, String lastName, LocalDate startDate) {
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.startDate = startDate;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public LocalDate getStartDate() {
+        return startDate;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        return Objects.equals(firstName, this.firstName)
+            && Objects.equals(lastName, this.lastName)
+            && Objects.equals(startDate, this.startDate);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(firstName, lastName, startDate);
+    }
+}

core-java-modules/core-java-serialization/pom.xml

@@ -64,7 +64,6 @@
                 <filtering>true</filtering>
             </resource>
         </resources>
-
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>

core-java-modules/core-java-string-algorithms-3/pom.xml

@@ -54,4 +54,5 @@
         <validator.version>1.7</validator.version>
         <apache-commons-lang3.version>3.12.0</apache-commons-lang3.version>
     </properties>
+
 </project>

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

@@ -69,7 +69,6 @@
                 <filtering>true</filtering>
             </resource>
         </resources>
-
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>

core-java-modules/pom.xml

@@ -137,4 +137,4 @@
         </dependencies>
     </dependencyManagement>
 
-</project>
+</project>

ddd-modules/infrastructure/pom.xml

@@ -1,13 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project
-    xmlns="http://maven.apache.org/POM/4.0.0"
+<project xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung.dddmodules.infrastructure</groupId>
     <artifactId>infrastructure</artifactId>
     <version>1.0</version>
-
     <packaging>jar</packaging>
 
     <parent>

ddd-modules/mainapp/pom.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project
-    xmlns="http://maven.apache.org/POM/4.0.0"
+<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>

ddd-modules/ordercontext/pom.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project
-    xmlns="http://maven.apache.org/POM/4.0.0"
+<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>
@@ -13,7 +12,6 @@
         <groupId>com.baeldung.dddmodules</groupId>
         <artifactId>ddd-modules</artifactId>
         <version>1.0</version>
-        <relativePath>../</relativePath>
     </parent>
 
     <dependencies>

ddd-modules/pom.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project
-    xmlns="http://maven.apache.org/POM/4.0.0"
+<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>
@@ -14,7 +13,6 @@
         <groupId>com.baeldung</groupId>
         <artifactId>parent-modules</artifactId>
         <version>1.0.0-SNAPSHOT</version>
-        <relativePath>../</relativePath>
     </parent>
 
     <modules>
@@ -70,10 +68,8 @@
     <properties>
         <source.version>9</source.version>
         <target.version>9</target.version>
-
         <compiler.plugin.version>3.8.1</compiler.plugin.version>
-
         <appmodules.version>1.0</appmodules.version>
     </properties>
 
-</project>
+</project>

ddd-modules/sharedkernel/pom.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project
-    xmlns="http://maven.apache.org/POM/4.0.0"
+<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>
@@ -13,7 +12,6 @@
         <groupId>com.baeldung.dddmodules</groupId>
         <artifactId>ddd-modules</artifactId>
         <version>1.0</version>
-        <relativePath>../</relativePath>
     </parent>
 
     <build>

ddd-modules/shippingcontext/pom.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project
-    xmlns="http://maven.apache.org/POM/4.0.0"
+<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>
@@ -13,7 +12,6 @@
         <groupId>com.baeldung.dddmodules</groupId>
         <artifactId>ddd-modules</artifactId>
         <version>1.0</version>
-        <relativePath>../</relativePath>
     </parent>
 
     <dependencies>