Issue
I have a Java project that doesn't have a main file but it has a lot of Maven dependencies.
How I can create a JAR-file that contains my source-code and required maven dependencies?
My 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>NetworkCommunicationAPI</groupId>
<artifactId>NetworkCommunicationAPI</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20210307</version>
</dependency>
</dependencies>
</project>
Solution
You can use the maven-assembly-plugin just as you could use it for creating an executable JAR with dependencies.
The only thing you need to change is that you don't need to specify a main class:
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
</plugins>
</build>
After that, you can create the JAR using mvn compile assembly:single
.
This compiles your sources and creates a JAR containing the compiled sources and all dependencies in the compile-scope.
Answered By - dan1st