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java.lang.NullPointerException: 	at javax.faces.component.UIComponentBase.getRenderer(UIComponentBase.java:741)	at javax.faces.component.UIComponentBase.getClientId(UIComponentBase.java:226)	at com.icesoft.faces.component.panelseries.UISeries.restoreChild(UISeries.java:505)	at com.icesoft.faces.component.ext.HtmlDataTable.restoreChild(HtmlDataTable.java:443)	at com.icesoft.faces.component.panelseries.UISeries.restoreChildState(UISeries.java:464)	at com.icesoft.faces.component.panelseries.UISeries.restoreChildState(UISeries.java:467)	at com.icesoft.faces.component.ext.HtmlDataTable.restoreChildrenState(HtmlDataTable.java:313)	at com.icesoft.faces.component.panelseries.UISeries.setRowIndex(UISeries.java:138)	at javax.faces.component.UIData.broadcast(UIData.java:517)	at com.icesoft.faces.component.panelseries.UISeries.broadcast(UISeries.java:270)	at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:94)	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:168)	at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:343)	at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)	at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:18)	at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.renderCycle(ReceiveSendUpdates.java:122)	at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.service(ReceiveSendUpdates.java:73)	at com.icesoft.faces.webapp.http.core.RequestVerifier.service(RequestVerifier.java:28)	at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:24)	at com.icesoft.faces.webapp.http.servlet.MainSessionBoundServlet.service(MainSessionBoundServlet.java:160)	at com.icesoft.faces.webapp.http.servlet.SessionDispatcher$1.service(SessionDispatcher.java:42)	at com.icesoft.faces.webapp.http.servlet.ThreadBlockingAdaptingServlet.service(ThreadBlockingAdaptingServlet.java:19)	at com.icesoft.faces.webapp.http.servlet.EnvironmentAdaptingServlet.service(EnvironmentAdaptingServlet.java:63)	at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:62)	at com.icesoft.faces.webapp.http.servlet.SessionVerifier.service(SessionVerifier.java:22)	at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23)	at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:153)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)	at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:56)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)	at java.lang.Thread.run(Unknown Source)