Java SE (Java Platform, Standard Edition)

I'm trying to programmatically select nodes within my JTreeTable, with zero-success...

I imagined the following would be fine for rendering the selection.

JTree tree = treeTable.getTree();
tree.setExpandsSelectedPaths(true);
// ...
treePath = treePath.pathByAddingChild(someObject);
tree.setSelectionPath(treePath);

The parent node is properly expanded and the new child becomes visible, however, there is no selection.

Any help very welcome.

thanks,
ian