Maven: JAR will be empty - no content was marked for inclusion

Question

I have a minor problem with maven. When I run the command mvn package I get the following warning:

[WARNING] JAR will be empty - no content was marked for in

Answer 1

Please try this one:

  ${project.artifactId}-${project.version}
  src
  test
  
    
      src
      
        **/*.java
      
    
  
  
    
      test
      
        **/*.java
      
    
  
  
    
      org.apache.maven.plugins
      maven-compiler-plugin
      ${maven-compiler-plugin.version}
      
        ${maven.compiler.source}
        ${maven.compiler.target}
      
    
  

If you want to convert an existing Eclipse Java Project just right click on Java Project and click Configure/Convert to Maven Project.