Java: using maven in Debian 13

Apache Maven is an open-source build automation and project management tool primarily used for Java applications. It simplifies the development process by managing a project's build, reporting, and documentation from a single piece of information.

To install maven:

# apt install maven
Installing:                     
  maven

Installing dependencies:
...

Showing version

$ mvn --version
Apache Maven 3.9.9
Maven home: /usr/share/maven
Java version: 21.0.11, vendor: Debian, runtime: /usr/lib/jvm/java-21-openjdk-amd64
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "6.12.88+deb13-amd64", arch: "amd64", family: "unix"

Go to your workspace, and run

$ mvn archetype:generate \
  -DgroupId=com.dedetok.myapp \
  -DartifactId=myapp \
  -DarchetypeArtifactId=maven-archetype-quickstart \
  -DarchetypeVersion=1.5 \
  -DinteractiveMode=false
...
$ ls myapp
pom.xml  src

DartifactId=myapp -> project root directory.

The main java code is ~/myapp/src/main/java/com/dedetok/myapp/App.java

package com.dedetok.myapp;

/**
 * Hello world!
 */
public class App {
    public static void main(String[] args) {
        System.out.println("Hello World!");
    }
}

To run the project using mvn, go to folder myapp, edit pom.xml

<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
         https://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <groupId>com.dedetok</groupId>
    <artifactId>myapp</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <build>
        <plugins>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.13.0</version>
            </plugin>

            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>3.6.3</version>
                <configuration>
                    <mainClass>com.dedetok.myapp.App</mainClass>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.4.2</version>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>com.dedetok.myapp.App</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>

        </plugins>
    </build>

</project>

then run:

$ mvn package

Run your application 

$ mvn exec:java -Dexec.mainClass="com.dedetok.myapp.App"
[INFO] Scanning for projects...
[INFO] 
[INFO] --------------------------< com.dedetok:myap >--------------------------
[INFO] Building myap 1.0-SNAPSHOT
[INFO]   from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- exec:3.6.3:java (default-cli) @ myap ---
Hello World!
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  8.265 s
[INFO] Finished at: 2026-05-24T14:59:08+07:00
[INFO] -----------------------------------------