Insert node into JTree with own TreeModel

Hi,
I use JTree in combination with my own TreeModel. When a node is removed I use this to inform all listeners:
actListener.treeStructureChanged(new TreeModelEvent(this, pathToRoot));The above works fine. Now if I insert a node and its' parent is already expanded nothing happens at all! I tried to call actListener.treeStructureChanged(new TreeModelEvent(this, pathToRoot)); and actListener.insertTreeNodes(new TreeModelEvent(this, pathToRoot)); without success!
As long as the parent is collapsed and a new node is inserted my getChildCount() method in my TreeModel gets called and the freshly added node will be display correctly but whan the node is already expanded nothing happens.
I've also checked the listeners of my model: one of them is JTree, so it is informed about the insertions but why won't it update its' view? It's especially funny since everything is fine when deleting a node.
Many thanks for any hints.
Regards,
Ren�

I am struggling with the same problem, and have yet to find a solution, maybe some more suggestions can be made? Here is the situation... I've got a JTree and a custom TreeModel. Now, if I do not expand a node, I can insert and delete from it at will using treeStructureChanged(new TreeModelEvent(this,path))and when I expand the node it will have the correct children. However, once I have expanded the node, all attempts to add or remove children are futile. Even if I un-expand the node, changes will not register in the JTree. I've tried out both suggestions already provided in this thread, but to no avail. Additionally, if I reset the root node, all my changes will appear correctly, however the trees "expanded" state is lost and this is not desireable.
Anybody have any advice?

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