UT005023: Exception handling request to ... AbstractMethodError: org.apache.xerces.dom.DeferredDocumentImpl.setXmlStandalone in JBoss EAP 7

Solution Unverified - Updated

Environment

Red Hat JBoss Enterprise Application Platform (EAP) 7

Issue

  • Our JAXWS Application is logging this error when we try to get the wsdl : http://localhost:8080/helloWorld?wsdl
19:28:45,537 ERROR [io.undertow.request] (default task-1) UT005023: Exception handling request to /helloWorld: java.lang.AbstractMethodError: org.apache.xerces.dom.DeferredDocumentImpl.setXmlStandalone(Z)V
	at org.apache.cxf.frontend.WSDLGetUtils.updateDoc(WSDLGetUtils.java:332)
	at org.apache.cxf.frontend.WSDLGetUtils.writeWSDLDocument(WSDLGetUtils.java:708)
	at org.apache.cxf.frontend.WSDLGetUtils.getDocument(WSDLGetUtils.java:151)
	at org.apache.cxf.frontend.WSDLGetInterceptor.getDocument(WSDLGetInterceptor.java:129)
	at org.apache.cxf.frontend.WSDLGetInterceptor.handleMessage(WSDLGetInterceptor.java:77)
	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
	at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
	at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:267)
	at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:110)
	at org.jboss.wsf.stack.cxf.transport.ServletHelper.callRequestHandler(ServletHelper.java:134)
	at org.jboss.wsf.stack.cxf.CXFServletExt.invoke(CXFServletExt.java:88)
	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:301)
	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:225)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:503)
	at org.jboss.wsf.stack.cxf.CXFServletExt.service(CXFServletExt.java:136)
	at org.jboss.wsf.spi.deployment.WSFServlet.service(WSFServlet.java:140)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:590)

Resolution

Remove the old Xerces jar from the application or depend on the org.apache.xerces module which effectively ignores the xerces packaged in the application.

Example: jboss-deployment-structure.xml: 

<jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.2">
  <deployment>
     <dependencies>
        <module name="org.apache.xerces" />
     </dependencies>
  </deployment>
</jboss-deployment-structure>

Root Cause

The application is packaging an incompatible JAXP implementation jar (such as an old xerces.jar)

Diagnostic Steps

The tattletale tool mentioned in the article below can create a report showing if the application is packaging the class org.apache.xerces.dom.DeferredDocumentImpl

How to diagnose ClassNotFoundException / NoClassDefFoundError and other classloading issues in JBoss EAP 6 / 7 with Tattletale

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