JTree: How to remove rootHandles from all nodes in SOME trees in an application

The UI properties should only apply to any trees created *after* you change the property.

Thanks for the replies (the one for connecting lines as well).
The connecting lines job works fine, using UIManager.put("Tree.paintLines", Boolean.FALSE);
However, I can't get rid of rootHandles on all nodes using UIManager.put("Tree.showsRootHandles", Boolean.FALSE);

Is this the correct default string? and Where on earth (Switzerland at the moment) do I find definitions of
the strings for the default UI stuff?
By the way, it's beer'oclock.
Thanks.

What L&F are you using?

Several look and feels,
Windows, EclipseL&F,  Metal, most are Jidesoft things.
Perhaps I have to set the UIDefault for showsRootHandles before
creating a node?

I would have thought the follwoing would work:

 tree.setShowsRootHandles(false);

Let me check and get back to you.

try setting UImanager properties "Tree.expandedIcon" and "Tree.collapsedIcon" to null.

Tried  the following:

      UIManager.put("Tree.expandedIcon", null);
      UIManager.put("Tree.collapsedIcon", null);

No change, little  boxed + or  -  icon still there.

What L&F did u test it on?

I have tried 6 different LAFs: Windows, eclipse metal, xerto (all from JideSoft inc)
They all still show the doobries.
Code is:
    UIManager.put("Tree.paintLines", Boolean.FALSE);
    UIManager.put("Tree.showsRootHandles", Boolean.FALSE);
    UIManager.put("Tree.expandedIcon", null);
    UIManager.put("Tree.collapsedIcon", null);

and:
    tree.putClientProperty("JTree.lineStyle", "None");
    renderer.putClientProperty("JTree.lineStyle", "None");

    tree.setShowsRootHandles(false);
    tree.setRootVisible(false);

The lines dont show.

OmiGawd
I forgot this trick! Works fine.

How to I find out about these resources like  "Tree.expandedIcon" ?