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javax.swing.tree.DefaultTreeModel
java.lang.ClassCastException: javax.swing.tree.DefaultTreeModel	at org.richfaces.component.UITree.createDataModel(UITree.java:516)	at org.richfaces.component.UITree.resetDataModel(UITree.java:292)	at org.ajax4jsf.component.UIDataAdaptor.encodeBegin(UIDataAdaptor.java:1058)	at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:280)	at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)	at org.richfaces.renderkit.html.SimpleToggleControlTemplate.doEncodeChildren(SimpleToggleControlTemplate.java:318)	at org.richfaces.renderkit.html.SimpleToggleControlTemplate.doEncodeChildren(SimpleToggleControlTemplate.java:313)	at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:121)	at org.richfaces.renderkit.html.SimpleTogglePanelRenderer.encodeChildren(SimpleTogglePanelRenderer.java:185)	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:809)	at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:271)	at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:242)	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:809)	at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)	at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)	at org.richfaces.renderkit.TabRendererBase.encodeChildren(TabRendererBase.java:113)	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:809)	at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)	at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)	at org.richfaces.renderkit.html.TabPanelRenderer.doEncodeChildren(TabPanelRenderer.java:266)	at org.richfaces.renderkit.html.TabPanelRenderer.doEncodeChildren(TabPanelRenderer.java:261)	at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:121)	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:809)	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)	at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)	at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:809)	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)	at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)	at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)	at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)	at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:226)	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:124)	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:283)	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)	at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)	at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:26)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3393)	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)	at weblogic.security.service.SecurityManager.runAs(Unknown Source)	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2140)	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2046)	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1366)	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:200)	at weblogic.work.ExecuteThread.run(ExecuteThread.java:172)