Cause:
at javax.faces.model.ListDataModel.getRowData(ListDataModel.java:150)
at org.apache.myfaces.trinidad.model.SortableModel.getRowData(SortableModel.java:127)
at org.apache.myfaces.trinidad.model.ChildPropertyTreeModel.getRowData(ChildPropertyTreeModel.java:216)
at org.apache.myfaces.trinidad.model.ChildPropertyTreeModel.isContainer(ChildPropertyTreeModel.java:228)
Solution:
tree.getDisclosedRowKeys().removeAll()
I think need to clear the disclosed row keys before you rebuild the Tree model.
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