Attached is an example that demonstrates the bug where the JTextField (used by DefaultCellEditor) does not lose focus in the case the user went into the editing mode and after editing - instead of hitting RETURN - just clicked on another node in the tree.
NOTE that if the user hit RETURN then the JTextField does loses focus on clicking on another node.
This causes a lot of problems on our application - JavaModeler. We are hosed since our menu actions get disabled because they rely on the currently focused component. this is a P1 on our currently Alpha mode application