java lang LinkageError loader constraint violation

java lang LinkageError loader constraint violation

11:57:04,473 WARN [org.jboss.detailed.classloader.ClassLoaderManager] Unexpected error during load of:org.xml.sax.InputSource: java.lang.LinkageError: loader constraint violation: loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) previously initiated

Solution: If you are trying to integrate JBoss application server (In my case JBoss version 6.1.0) and webserviceclient.jar is available in your class path then you will see above exception. Please remove webserviceclient.jar form your project class path to fix the issue. It seems webserviceclient.jar is not compatible with JBoss 6.1.0.

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