If your application is modular, then make the class with the main method readable. To do so either:

• add exports declaration for the package containing the class, for example:

  module-info.java

  module com.caco3.elijarsdemo.printmodule {
      exports com.caco3.elijarsdemo.printmodule;
  }

• open the module, for example:

  module-info.java

  open module com.caco3.elijarsdemo.printmodule {
  }

1. Add jitpack repository to pom.xml:

   pom.xml

   <project>
       <pluginRepositories>
           <pluginRepository>
               <id>jitpack</id>
               <url>https://jitpack.io</url>
           </pluginRepository>
       </pluginRepositories>
   </project>

2. Add maven plugin to your build:

   <plugin>
       <groupId>com.github.cac03.elijars</groupId>
       <artifactId>elijars-maven-plugin</artifactId>
       <version>0.0.1</version>
       <executions>
           <execution>
               <goals>
                   <goal>compose</goal> <!--(1)-->
               </goals>
               <configuration>
                   <mainClass>com.caco3.elijars.simpleapplication.Main</mainClass> <!--(2)-->
                   <mainModule>elijars.simpleapplication</mainModule> <!--(3)-->
               </configuration>
           </execution>
       </executions>
   </plugin>

1. Enable compose goal of the plugin

2. Specify the main class to launch

3. Specify the main module name

To exclude a dependency from the jar configure exclusions.

Example:

Elijars can create modular fat jars with dependencies. There is no need to supply dependencies in --module-path or -classpath to make them available to the application. The plugin embeds the dependencies into the final jar.