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java.lang.RuntimeException: wrapped Exception: java.lang.NullPointerException at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:211) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:55) at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:427) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:315) at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:287) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:218) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94) at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:291) at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:670) at com.sun.enterprise.web.connector.grizzly.comet.CometEngine.executeServlet(CometEngine.java:664) at com.sun.enterprise.web.connector.grizzly.comet.CometEngine.handle(CometEngine.java:409) at com.sun.enterprise.web.connector.grizzly.comet.CometAsyncFilter.doFilter(CometAsyncFilter.java:86) at com.sun.enterprise.web.connector.grizzly.async.DefaultAsyncExecutor.invokeFilters(DefaultAsyncExecutor.java:196) at com.sun.enterprise.web.connector.grizzly.async.DefaultAsyncExecutor.interrupt(DefaultAsyncExecutor.java:171) at com.sun.enterprise.web.connector.grizzly.async.AsyncProcessorTask.doTask(AsyncProcessorTask.java:96) at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:269) at com.sun.enterprise.web.connector.grizzly.WorkerThreadImpl.run(WorkerThreadImpl.java:122)Caused by: java.lang.NullPointerException at com.icesoft.faces.util.DOMUtils.compareNodes(DOMUtils.java:271) at com.icesoft.faces.util.DOMUtils.compareNodes(DOMUtils.java:305) at com.icesoft.faces.util.DOMUtils.compareNodes(DOMUtils.java:305) at com.icesoft.faces.util.DOMUtils.domDiff(DOMUtils.java:255) at com.icesoft.faces.context.PushModeSerializer.serialize(PushModeSerializer.java:69) at com.icesoft.faces.context.BridgeFacesContext$SaveCurrentDocument.serialize(BridgeFacesContext.java:950) at com.icesoft.faces.context.DOMResponseWriter.endDocument(DOMResponseWriter.java:190) at com.icesoft.faces.facelets.D2DFaceletViewHandler.renderResponse(D2DFaceletViewHandler.java:284) at com.icesoft.faces.application.D2DViewHandler.renderView(D2DViewHandler.java:158) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:51) at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.renderCycle(ReceiveSendUpdates.java:171) at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.service(ReceiveSendUpdates.java:112) at com.icesoft.faces.webapp.http.core.RequestVerifier.service(RequestVerifier.java:65) at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:55) at com.icesoft.faces.webapp.http.servlet.BasicAdaptingServlet.service(BasicAdaptingServlet.java:48) at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:55) at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:96) at com.icesoft.faces.webapp.http.servlet.SessionVerifier.service(SessionVerifier.java:58) at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:55) at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:186) ... 30 more