java.lang.ArrayIndexOutOfBoundsException: node has no children

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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 com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:99)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:268)
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 java.security.AccessController.doPrivileged(Native Method)
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 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.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)

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