jboss7.x - Jboss AS7 - module deployment - java.lang.IllegalAccessError -


please let me know why below error when deploying in jboss as7. error thrown when deploying .ear , have used modules. however, when deploy ear libraries in lib deploying without errors.

caused by: java.lang.illegalaccesserror: tried access class org.apache.xerces.parsers.objectfactory class org.apache.xerces.parsers.saxparser     @ org.apache.xerces.parsers.saxparser.<init>(unknown source) [xercesimpl-2.8.1.jar:]     @ org.apache.xerces.parsers.saxparser.<init>(unknown source) [xercesimpl-2.8.1.jar:]     @ sun.reflect.nativeconstructoraccessorimpl.newinstance0(native method) [rt.jar:1.6.0_38]     @ sun.reflect.nativeconstructoraccessorimpl.newinstance(nativeconstructoraccessorimpl.java:39) [rt.jar:1.6.0_38]     @ sun.reflect.delegatingconstructoraccessorimpl.newinstance(delegatingconstructoraccessorimpl.java:27) [rt.jar:1.6.0_38]     @ java.lang.reflect.constructor.newinstance(constructor.java:513) [rt.jar:1.6.0_38]     @ java.lang.class.newinstance0(class.java:355) [rt.jar:1.6.0_38]     @ java.lang.class.newinstance(class.java:308) [rt.jar:1.6.0_38]     @ org.xml.sax.helpers.newinstance.newinstance(newinstance.java:51) [rt.jar:1.6.0_38]     @ org.xml.sax.helpers.xmlreaderfactory.loadclass(xmlreaderfactory.java:187) [rt.jar:1.6.0_38]     @ org.xml.sax.helpers.xmlreaderfactory.createxmlreader(xmlreaderfactory.java:180) [rt.jar:1.6.0_38]


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