*/
private void handleTreeViewerRootChange(String pathName) {
pathName = pathName.trim();
File newRoot = new File(pathName);
if (newRoot.exists() && newRoot.isDirectory()) {
contentProvider = new GenericAssetTreeContentProvider(newRoot);
treeViewer.setContentProvider(contentProvider);
treeViewer.setInput(contentProvider.getRoot());
updateButtons();
} else {
if (contentProvider != null) {