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java.lang.ArrayIndexOutOfBoundsException: node has no children	at javax.swing.tree.DefaultMutableTreeNode.getChildAt(DefaultMutableTreeNode.java:228)	at com.icesoft.faces.component.tree.Tree.getNodeAtPathsEnd(Tree.java:193)	at com.icesoft.faces.component.tree.TreeRenderer.decode(TreeRenderer.java:68)	at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:685)	at com.icesoft.faces.component.tree.Tree.processDecodes(Tree.java:646)	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:900)	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:900)	at javax.faces.component.UIForm.processDecodes(UIForm.java:164)	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:900)	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:900)	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:900)	at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:326)	at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:99)	at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:268)	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:110)	at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.renderCycle(BlockingServlet.java:293)	at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.receiveUpdates(BlockingServlet.java:281)	at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:187)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:860)	at sun.reflect.GeneratedMethodAccessor236.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:585)	at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)	at java.security.AccessController.doPrivileged(Native Method)	at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:257)	at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55)	at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161)	at java.security.AccessController.doPrivileged(Native Method)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:263)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:225)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:132)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933)	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:189)	at com.sun.enterprise.web.connector.grizzly.ProcessorTask.doProcess(ProcessorTask.java:604)	at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:475)	at com.sun.enterprise.web.connector.grizzly.ReadTask.executeProcessorTask(ReadTask.java:371)	at com.sun.enterprise.web.connector.grizzly.ReadTask.doTask(ReadTask.java:264)	at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:281)	at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:83)