[jboss-user] [jBPM] New message: "SDK 6 and jBPM-jpdl 3.2.GA problem: Error, Can't overwrite cause"

[nana gyimah]

User development,

A new message was posted in the thread "SDK 6 and jBPM-jpdl 3.2.GA problem: Error, Can't overwrite cause":

http://community.jboss.org/message/521718#521718

Author  : nana gyimah
Profile : http://community.jboss.org/people/bobolee

Message:
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i am a new user of jBPM and i realise you are an advanced user and please, i want you to help me
I am using eclipse SDK 6 and jBPM-jpdl 3.2.GA. i am running it on a local PC.
i am following the sample project and i have developed the process flow in eclipse and have created all the users in the databse but the problem is that in the webconsole if i click on start process or if i click on view in Tasks it gives me the error below.

java.lang.IllegalStateException: Can't overwrite cause
    at java.lang.Throwable.initCause(Throwable.java:320)
    at com.ctc.wstx.compat.Jdk14Impl.setInitCause(Jdk14Impl.java:59)
    at com.ctc.wstx.exc.WstxException.<init>(WstxException.java:46)
    at com.ctc.wstx.exc.WstxIOException.<init>(WstxIOException.java:16)
    at com.ctc.wstx.sr.StreamScanner.throwFromIOE(StreamScanner.java:522)
    at com.ctc.wstx.sr.WstxStreamReader.next(WstxStreamReader.java:978)
    at org.jbpm.webapp.tag.jbpm.ui.XmlPrinter.encodeBegin(XmlPrinter.java:113)
    at org.jbpm.webapp.tag.jbpm.ui.ComponentBase.doEncode(ComponentBase.java:31)
    at org.jbpm.webapp.tag.jbpm.ui.ComponentBase.doEncode(ComponentBase.java:58)
    at org.jbpm.webapp.tag.jbpm.ui.Tab.encodeChildren(Tab.java:112)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:884)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:890)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:890)
    at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:578)
    at org.jbpm.webapp.application.JbpmViewHandler.renderView(JbpmViewHandler.java:58)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
    at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:248)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:59)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
    at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
    at java.lang.Thread.run(Thread.java:619)

Please help me it is urgents.

Thank you

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