Grizzly and Jersey standalone jar

Question

I am trying to package Grizzly with Jersey as a single jar using Maven shade plugin. But I always get the message No container provider supports the type class org.gla

Answer 1

The following links helped me figuring out the solution below:

• http://maven.apache.org/guides/mini/guide-assemblies.html
• http://maven.apache.org/plugins/maven-assembly-plugin/descriptor-refs.html
• How can I merge resource files in a Maven assembly?

especially the answer

• https://stackoverflow.com/a/11331222/1497139

Instead of using the jar-with-dependencies as the descriptorRef of your assembly-plugin configuration you create our own e.g. in src/assembly/depmerge.xml (see below). This assembly configuration will add a containerDescriptorHandler that cares for the META-INF/services.

run

mvn clean compile assembly:single

to get a jar file in target which you can call with

java -jar target/x.y.-version-jar-with-dependencies.jar

pom.xml:

      
            maven-assembly-plugin
            2.5.3
            
                
                    
                        ${mainClass}
                    
                
          src/assembly/depmerge.xml
          
        

src/assembly/depmerge.xml:

    
    jar-with-dependencies-and-services
    
        jar
    
    false
    
        
            /
            true
            true
            runtime
        
    
    
    
        
            metaInf-services