in src/org/pushingpixels/lightbeam/panels/TreePanel.java [71:78]
private void expandAll(JTree tree, TreePath path) {
TreeNode node = (TreeNode) path.getLastPathComponent();
for (int i = 0; i < node.getChildCount(); i++) {
TreeNode child = node.getChildAt(i);
expandAll(tree, path.pathByAddingChild(child));
}
tree.expandPath(path);
}