How reference to jar-file that exists in ear-file from external module

[vkorppi]

Is there any way to reference jar-file in ear-file from module.xml. I have jar-file that has dependency to other jar-file that exists in ear-file.

[jaysensharma]

Hello,

   It is not a good practice to try referencing the Jar file (library) of an EAR from an outside JBoss module.  As applications (like EAR/WAR...) are "Dynamic Modules" and the JBoss Modules which we create inside the "$JBOSS_HOME/modules" directory are considered as "Static Modules"

   We should try to avoid all the scenarios where the Static modules will try to attempt to access the resources/jars present inside the Dynamic Modules (deployed applications).

   But using TCCL it should be possible to do so,

Example:

   If you have following kind of code present inside your "Static Module"

public class MyModuleClass {
        public static void someMethod(String dynamicModuleResource) {
             InputStream is =  Thread.currentThread().getContextClassLoader().getResourceAsStream(dynamicModuleResource);   
             // Suppose dynamicModuleResource="/META-INF/something.properties"
              // try reading the above stream.
        }
}

   And if you application which is deployed to the JBoss EAP6 has the following kind of code:

public MyEJB {
      public void test{} {
            MyModuleClass.someMethod("/META-INF/something.properties");         // this file is present inside the EJB JAR
      }
  }

But that is not always possible in case of third party APIs where you do not have much options to use the TCCL.