tree2 example: Encountered a node [0:0:0] + with an illogical state

[Erik Mellegård <er...@passagen.se>]

Hi,

I'm wondering how to solve the following issue with the server 
side tree2 in the example collections at http://www.irian.
at/myfaces/tree2.jsf. (The clinet side version works as expected)

To 
reproduce the problem:
1. Open http://www.irian.at/myfaces/tree2.jsf
2. 
Expand "Inbox" and "Frank Foo" folders
3. Click on the line that 
attaches Frank Foo with Requires Foo (where there would have been a 
plus if Requires Foo would have contained children)

This generates the 
following exception:

javax.servlet.ServletException: Encountered a 
node [0:0:0] + with an illogical state.  Node is expanded but it is 
also considered a leaf (a leaf cannot be considered expanded.
javax.
faces.webapp.FacesServlet.service(FacesServlet.java:109)
org.apache.
myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.
java:122)

root cause 
java.lang.IllegalStateException: Encountered a 
node [0:0:0] + with an illogical state.  Node is expanded but it is 
also considered a leaf (a leaf cannot be considered expanded. org.
apache.myfaces.custom.tree2.HtmlTreeRenderer.encodeNavigation
(HtmlTreeRenderer.java:463)
org.apache.myfaces.custom.tree2.
HtmlTreeRenderer.encodeCurrentNode(HtmlTreeRenderer.java:346)
org.
apache.myfaces.custom.tree2.HtmlTreeRenderer.encodeTree
(HtmlTreeRenderer.java:248)
org.apache.myfaces.custom.tree2.
HtmlTreeRenderer.encodeTree(HtmlTreeRenderer.java:276)
org.apache.
myfaces.custom.tree2.HtmlTreeRenderer.encodeTree(HtmlTreeRenderer.java:
276)
org.apache.myfaces.custom.tree2.HtmlTreeRenderer.encodeChildren
(HtmlTreeRenderer.java:200)
javax.faces.component.UIComponentBase.
encodeChildren(UIComponentBase.java:319)
javax.faces.webapp.
UIComponentTag.encodeChildren(UIComponentTag.java:343)
javax.faces.
webapp.UIComponentTag.doEndTag(UIComponentTag.java:251)
org.apache.jsp.
tree2_jsp._jspx_meth_t_tree2_1(org.apache.jsp.tree2_jsp:1050)
org.
apache.jsp.tree2_jsp._jspx_meth_h_form_0(org.apache.jsp.tree2_jsp:225)
org.apache.jsp.tree2_jsp._jspx_meth_f_view_0(org.apache.jsp.tree2_jsp:
182)
org.apache.jsp.tree2_jsp._jspService(org.apache.jsp.tree2_jsp:126)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.
jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:
291)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.
myfaces.context.servlet.ServletExternalContextImpl.dispatch
(ServletExternalContextImpl.java:415)
org.apache.myfaces.application.
jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
org.
apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:300)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:95)
org.
apache.myfaces.component.html.util.ExtensionsFilter.doFilter
(ExtensionsFilter.java:122)


Best Regards

Erik Mellegård