java.lang.LinkageError: loader constraint violation: loader (instance of org/jboss/path/to/<JBOSS>ClassLoader) previously initiated loading for a different type with name "com/example/MyClass"

Solution Unverified - Updated -

Issue

  • When we attempt to make a remote call from one JBoss node to another JBoss node we get the following classloader error:
ERROR (full details in attached file):
2016-03-23 13:44:42,448 - ERROR (WorkManager(2)-40) - loader constraint violation: loader (instance of org/jboss/remoting/loading/RemotingClassLoader) previously initiated loading for a different type with name
 "com/example/MyClass"
java.lang.LinkageError: loader constraint violation: loader (instance of org/jboss/remoting/loading/RemotingClassLoader) previously initiated loading for a different type with name "com/example/MyClass"

Environment

  • Red Hat JBoss Enterprise Application Platform

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