RolesTreeNode parent = (RolesTreeNode) RolesTopNode.getChildAt(i);
for (int j=0;j<parent.getChildCount();j++){
MutableTreeNode child = (MutableTreeNode) parent.getChildAt(j);
if(child.toString().equals(nodeToDelete.toString())){
child.removeFromParent();
RolesTree.updateUI();
}
}
}
for (int i=0;i < GroupsTopNode.getChildCount();i++){