Multimodule Maven Project using Java Modules (#6875)
* Initial Commit * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update pom.xml * Update module-info.java * Update module-info.java * Update pom.xml * Update pom.xml
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core-java-modules/multimodulemavenproject/daomodule/pom.xml
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27
core-java-modules/multimodulemavenproject/daomodule/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<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">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.baeldung.multimodulemavenproject</groupId>
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<artifactId>multimodulemavenproject</artifactId>
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<version>1.0</version>
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</parent>
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<groupId>com.baeldung.daomodule</groupId>
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<artifactId>daomodule</artifactId>
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<version>1.0</version>
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<packaging>jar</packaging>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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<properties>
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<maven.compiler.source>9</maven.compiler.source>
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<maven.compiler.target>9</maven.compiler.target>
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</properties>
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</project>
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package com.baeldung.daomodule;
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import java.util.List;
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import java.util.Optional;
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public interface Dao<T> {
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Optional<T> findById(int id);
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List<T> findAll();
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}
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module com.baeldung.daomodule {
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exports com.baeldung.daomodule;
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}
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<?xml version="1.0" encoding="UTF-8"?>
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<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">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.baeldung.multimodulemavenproject</groupId>
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<artifactId>multimodulemavenproject</artifactId>
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<version>1.0</version>
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</parent>
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<groupId>com.baeldung.entitymodule</groupId>
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<artifactId>entitymodule</artifactId>
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<version>1.0</version>
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<packaging>jar</packaging>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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<properties>
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<maven.compiler.source>9</maven.compiler.source>
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<maven.compiler.target>9</maven.compiler.target>
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</properties>
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</project>
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package com.baeldung.entitymodule;
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public class User {
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private final String name;
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public User(String name) {
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this.name = name;
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}
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public String getName() {
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return name;
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}
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@Override
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public String toString() {
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return "User{" + "name=" + name + '}';
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}
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}
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module com.baeldung.entitymodule {
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exports com.baeldung.entitymodule;
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}
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<?xml version="1.0" encoding="UTF-8"?>
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<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">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.baeldung.multimodulemavenproject</groupId>
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<artifactId>multimodulemavenproject</artifactId>
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<version>1.0</version>
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</parent>
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<groupId>com.baeldung.mainappmodule</groupId>
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<artifactId>mainappmodule</artifactId>
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<version>1.0</version>
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<packaging>jar</packaging>
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<dependencies>
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<dependency>
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<groupId>com.baeldung.entitymodule</groupId>
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<artifactId>entitymodule</artifactId>
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<version>1.0</version>
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</dependency>
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<dependency>
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<groupId>com.baeldung.daomodule</groupId>
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<artifactId>daomodule</artifactId>
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<version>1.0</version>
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</dependency>
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<dependency>
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<groupId>com.baeldung.userdaomodule</groupId>
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<artifactId>userdaomodule</artifactId>
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<version>1.0</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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<properties>
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<maven.compiler.source>9</maven.compiler.source>
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<maven.compiler.target>9</maven.compiler.target>
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</properties>
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</project>
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package com.baeldung.mainappmodule;
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import com.baeldung.daomodule.Dao;
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import com.baeldung.entitymodule.User;
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import com.baeldung.userdaomodule.UserDao;
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import java.util.HashMap;
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import java.util.Map;
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public class Application {
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public static void main(String args[]) {
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Map<Integer, User> users = new HashMap<>();
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users.put(1, new User("Julie"));
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users.put(2, new User("David"));
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Dao userDao = new UserDao(users);
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userDao.findAll().forEach(System.out::println);
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}
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}
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module com.baeldung.mainppmodule {
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requires com.baeldung.entitymodule;
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requires com.baeldung.daomodule;
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requires com.baeldung.userdaomodule;
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uses com.baeldung.userdaomodule.UserDao;
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}
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62
core-java-modules/multimodulemavenproject/pom.xml
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62
core-java-modules/multimodulemavenproject/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<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">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung.multimodulemavenproject</groupId>
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<artifactId>multimodulemavenproject</artifactId>
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<version>1.0</version>
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<packaging>pom</packaging>
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<name>multimodulemavenproject</name>
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<parent>
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<artifactId>parent-modules</artifactId>
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<groupId>com.baeldung</groupId>
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<version>1.0.0-SNAPSHOT</version>
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<relativePath>../../</relativePath>
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</parent>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.12</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.assertj</groupId>
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<artifactId>assertj-core</artifactId>
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<version>3.12.2</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<build>
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<pluginManagement>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.8.0</version>
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<configuration>
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<configuration>
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<source>1.9</source>
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<target>1.9</target>
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</configuration>
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</configuration>
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</plugin>
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</plugins>
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</pluginManagement>
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</build>
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<modules>
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<module>entitymodule</module>
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<module>daomodule</module>
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<module>userdaomodule</module>
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<module>mainappmodule</module>
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</modules>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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</project>
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<?xml version="1.0" encoding="UTF-8"?>
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<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">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.baeldung.multimodulemavenproject</groupId>
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<artifactId>multimodulemavenproject</artifactId>
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<version>1.0</version>
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</parent>
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<groupId>com.baeldung.userdaomodule</groupId>
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<artifactId>userdaomodule</artifactId>
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<version>1.0</version>
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<packaging>jar</packaging>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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<dependencies>
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<dependency>
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<groupId>com.baeldung.entitymodule</groupId>
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<artifactId>entitymodule</artifactId>
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<version>1.0</version>
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</dependency>
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<dependency>
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<groupId>com.baeldung.daomodule</groupId>
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<artifactId>daomodule</artifactId>
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<version>1.0</version>
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</dependency>
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</dependencies>
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<properties>
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<maven.compiler.source>9</maven.compiler.source>
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<maven.compiler.target>9</maven.compiler.target>
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</properties>
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</project>
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package com.baeldung.userdaomodule;
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import com.baeldung.daomodule.Dao;
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import com.baeldung.entitymodule.User;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Optional;
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public class UserDao implements Dao<User> {
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private final Map<Integer, User> users;
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public UserDao() {
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users = new HashMap<>();
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}
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public UserDao(Map<Integer, User> users) {
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this.users = users;
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}
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@Override
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public List<User> findAll() {
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return new ArrayList<>(users.values());
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}
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@Override
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public Optional<User> findById(int id) {
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return Optional.ofNullable(users.get(id));
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}
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}
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module com.baeldung.userdaomodule {
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requires com.baeldung.entitymodule;
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requires com.baeldung.daomodule;
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provides com.baeldung.daomodule.Dao with com.baeldung.userdaomodule.UserDao;
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exports com.baeldung.userdaomodule;
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}
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung.core-java-modules</groupId>
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<artifactId>core-java-modules</artifactId>
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<name>core-java-modules</name>
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<packaging>pom</packaging>
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<modules>
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<module>pre-jpms</module>
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</modules>
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</project>
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</project>
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