Render phase of the portlet failed : java.lang.LinkageError: loading constraint violation

Hi Experts,

I am getting below error while accessing a portlet page. Has anybody faced the similar issue?

Please help me to solve this issue.

(jsf:ERROR) [qtp-549890207-310] [RID:22] - Render phase of the portlet failed
java.lang.LinkageError: loading constraint violation: loader “org/eclipse/osgi/internal/loader/EquinoxClassLoader@6d27f441” previously initiated loading for a different type with name “javax/xml/stream/XMLStreamReader” defined by loader “org/eclipse/osgi/internal/loader/EquinoxClassLoader@e34812b7”
at java.lang.ClassLoader.defineClassImpl(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:346)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.defineClass(ModuleClassLoader.java:272)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.defineClass(ClasspathManager.java:632)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findClassImpl(ClasspathManager.java:588)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:540)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:527)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:324)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:327)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:402)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:352)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:344)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:809)
at caf.war.EVATasks.wsclient.imagenes.webservices.geturloperationlistwsdl.ImagenesWebServicesGetURLOperationListWSDLStub$GetURLOperationListE.(ImagenesWebServicesGetURLOperationListWSDLStub.java:293)
at caf.war.EVATasks.wsclient.imagenes.webservices.geturloperationlistwsdl.GetURLOperationList$Parameters.(GetURLOperationList.java:46)
at caf.war.EVATasks.wsclient.imagenes.webservices.geturloperationlistwsdl.GetURLOperationList.(GetURLOperationList.java:28)
at java.lang.J9VMInternals.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1899)
at com.sun.faces.mgbean.BeanBuilder.newBeanInstance(BeanBuilder.java:186)
at com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:100)
at com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:409)
at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:269)
at com.webmethods.caf.faces.portlet.el.PortletVariableResolver.getPageFlowBean(PortletVariableResolver.java:330)
at com.webmethods.caf.faces.portlet.el.PortletVariableResolver.getValue(PortletVariableResolver.java:192)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:103)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:224)
at com.webmethods.caf.faces.application.CAFValueExpression.getValue(CAFValueExpression.java:140)
at com.webmethods.caf.faces.bean.BaseFacesBean.resolveExpression(BaseFacesBean.java:164)
at caf.war.EVATasks.seccionclasificationimage.SeccionClasificationImageDefaultviewView.getGetURLOperationList(SeccionClasificationImageDefaultviewView.java:622)
at caf.war.EVATasks.seccionclasificationimage.SeccionClasificationImageDefaultviewView.initialize(SeccionClasificationImageDefaultviewView.java:70)
at com.webmethods.caf.faces.bean.BasePortletPageBean.callInitialize(BasePortletPageBean.java:234)
at com.webmethods.caf.faces.bean.BaseViewBean.preRenderResponse(BaseViewBean.java:104)
at com.webmethods.caf.faces.component.logic.ImportTemplate.postPageBeforePhase(ImportTemplate.java:277)
at com.webmethods.caf.faces.component.PostPageComponentPhaseListener.propagateEvent(PostPageComponentPhaseListener.java:121)
at com.webmethods.caf.faces.component.PostPageComponentPhaseListener.propagateEvent(PostPageComponentPhaseListener.java:128)
at com.webmethods.caf.faces.component.PostPageComponentPhaseListener.propagateEvent(PostPageComponentPhaseListener.java:128)
at com.webmethods.caf.faces.component.PostPageComponentPhaseListener.preRenderView(PostPageComponentPhaseListener.java:50)
at com.webmethods.caf.faces.bean.BasePhaseListener.processEvent(BasePhaseListener.java:40)
at javax.faces.event.SystemEvent.processListener(SystemEvent.java:108)
at javax.faces.event.ComponentSystemEvent.processListener(ComponentSystemEvent.java:118)
at com.sun.faces.application.ApplicationImpl.processListeners(ApplicationImpl.java:2169)
at com.sun.faces.application.ApplicationImpl.invokeListenersFor(ApplicationImpl.java:2142)
at com.sun.faces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:301)
at com.sun.faces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:245)
at com.webmethods.caf.faces.application.CAFApplication.publishEvent(CAFApplication.java:629)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:107)
at com.webmethods.caf.faces.portlet.PortletLifecycle$RenderResponsePhase.execute(PortletLifecycle.java:865)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.webmethods.caf.faces.portlet.PortletLifecycle.phase(PortletLifecycle.java:322)
at com.webmethods.caf.faces.portlet.PortletLifecycle.render(PortletLifecycle.java:264)
at com.webmethods.caf.faces.portlet.FacesPortlet.render(FacesPortlet.java:464)
at com.webmethods.portal.framework.portletcontainer.impl.PortletApplicationHandler.process(PortletApplicationHandler.java:611)
at com.webmethods.portal.framework.portletcontainer.servlet.PortletServlet.service(PortletServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:595)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.Dispatcher.include(Dispatcher.java:115)
at com.webmethods.portal.framework.portletcontainer.impl.PortletContainer.dispatch(PortletContainer.java:295)
at com.webmethods.portal.framework.portletcontainer.impl.PortletContainer.process(PortletContainer.java:203)
at com.webmethods.portal.framework.portletcontainer.impl.PortletContainer.renderPortlet(PortletContainer.java:175)
at com.webmethods.portal.framework.portletcontainer.beans.PortletBean.processRequest(PortletBean.java:204)
at com.webmethods.portal.framework.portletcontainer.beans.PortletBean.getContentInternal(PortletBean.java:90)
at com.webmethods.portal.framework.portlet.beans.BasicPortletBean.getContent(BasicPortletBean.java:158)
at com.webmethods.portal.mech.portlet.impl.PortletMechanics.getPortletContent(PortletMechanics.java:139)
at com.webmethods.portal.bizPolicy.command.portlet.GetPortletContent.getPortletContent(GetPortletContent.java:99)
at com.webmethods.portal.framework.portletcontainer.impl.PortletApplicationHandler$PortletProviderImpl.renderPortlet(PortletApplicationHandler.java:293)
at com.webmethods.caf.faces.render.html.output.PortletIncludeRenderer.encodeEnd(PortletIncludeRenderer.java:54)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:919)
at com.webmethods.caf.faces.component.util.ComponentUtils.renderComponent(ComponentUtils.java:111)
at com.webmethods.caf.faces.render.BaseRenderer.renderComponent(BaseRenderer.java:305)
at com.webmethods.caf.faces.render.BaseRenderer.encodeChildren(BaseRenderer.java:45)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:889)
at com.webmethods.caf.faces.component.panel.BaseHideablePanel.encodeChildren(BaseHideablePanel.java:192)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
at com.webmethods.caf.faces.view.CafViewDeclarationLanguage.renderView(CafViewDeclarationLanguage.java:217)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:133)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
at com.webmethods.caf.faces.portlet.PortletLifecycle$RenderResponsePhase.execute(PortletLifecycle.java:865)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.webmethods.caf.faces.portlet.PortletLifecycle.phase(PortletLifecycle.java:322)
at com.webmethods.caf.faces.portlet.PortletLifecycle.render(PortletLifecycle.java:264)
at com.webmethods.caf.faces.portlet.FacesPortlet.render(FacesPortlet.java:464)
at com.webmethods.portal.framework.portletcontainer.impl.PortletApplicationHandler.process(PortletApplicationHandler.java:611)
at com.webmethods.portal.framework.portletcontainer.servlet.PortletServlet.service(PortletServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:595)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.Dispatcher.include(Dispatcher.java:115)
at com.webmethods.portal.framework.portletcontainer.impl.PortletContainer.dispatch(PortletContainer.java:295)
at com.webmethods.portal.framework.portletcontainer.impl.PortletContainer.process(PortletContainer.java:203)
at com.webmethods.portal.framework.portletcontainer.impl.PortletContainer.renderPortlet(PortletContainer.java:175)
at com.webmethods.portal.framework.portletcontainer.beans.PortletBean.processRequest(PortletBean.java:204)
at com.webmethods.portal.framework.portletcontainer.beans.PortletBean.getContentInternal(PortletBean.java:90)
at com.webmethods.portal.framework.portlet.beans.BasicPortletBean.getContent(BasicPortletBean.java:158)
at com.webmethods.portal.mech.portlet.impl.PortletMechanics.getPortletContent(PortletMechanics.java:139)
at com.webmethods.portal.mech.storage.page.PortletHelper.renderContent(PortletHelper.java:430)
at com.webmethods.portal.mech.storage.page.PortletHelper.renderContent(PortletHelper.java:402)
at com.webmethods.portal.framework.presentation.renderers.PortalPageSubRenderer.renderPortlet(PortalPageSubRenderer.java:660)
at com.webmethods.portal.framework.presentation.renderers.PortalPageSubRenderer.renderColumn(PortalPageSubRenderer.java:491)
at com.webmethods.portal.framework.presentation.renderers.PortalPageSubRenderer.renderRow(PortalPageSubRenderer.java:330)
at com.webmethods.portal.framework.presentation.renderers.PortalPageSubRenderer.renderContent(PortalPageSubRenderer.java:173)
at com.webmethods.portal.framework.presentation.renderers.PortalPageSubRenderer.subrender(PortalPageSubRenderer.java:151)
at com.webmethods.portal.framework.presentation.renderers.NoodleRenderer.renderPageContent(NoodleRenderer.java:96)
at com.webmethods.portal.framework.presentation.renderers.DefaultRenderer.render(DefaultRenderer.java:316)
at com.webmethods.portal.framework.presentation.impl.PresentationManager.handlePres(PresentationManager.java:991)
at com.webmethods.portal.framework.dispatch.impl.DispatchManager.pres(DispatchManager.java:1074)
at com.webmethods.portal.framework.dispatch.impl.DispatchManager.handle(DispatchManager.java:902)
at com.webmethods.portal.framework.dispatch.impl.DispatchManager.handleDispatch(DispatchManager.java:776)
at com.webmethods.portal.framework.impl.PortalServlet.service(PortalServlet.java:328)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669)
at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:83)
at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:364)
at com.webmethods.caf.faces.servlet.GZIPFilter.doFilter(GZIPFilter.java:49)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at com.webmethods.portal.framework.impl.NTLMV2Filter.doFilter(NTLMV2Filter.java:57)
at com.webmethods.portal.framework.impl.NTLMFilter.doFilter(NTLMFilter.java:30)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at com.webmethods.portal.framework.impl.RequestFilter.doFilter(RequestFilter.java:63)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at com.webmethods.portal.framework.impl.JsfPartialAjaxRequestFilter.doFilter(JsfPartialAjaxRequestFilter.java:81)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at com.webmethods.portal.framework.impl.SpnegoFilterWrapper.doFilter(SpnegoFilterWrapper.java:75)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
at com.webmethods.portal.webapp.jetty7.MwsServer.handle(MwsServer.java:129)
at org.eclipse.jetty.server.Server.handle(Server.java:497)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Thread.java:785)

Regards,
Mohan Nataraj