protected void newFolderButtonPressed() { Object createdFolder = createFolder(fSelectedContainer); if (createdFolder != null) { CheckboxTreeViewer treeViewer = fViewer; treeViewer.refresh(fSelectedContainer); treeViewer.reveal(createdFolder); treeViewer.setChecked(createdFolder, true); treeViewer.setSelection(new StructuredSelection(createdFolder)); updateOKStatus(); } }