final ProgressMonitorDialog progressMonitor = new ProgressMonitorDialog(
				getShell());

		Display.getDefault().syncExec(new Runnable() {
			public void run() {
				progressMonitor.open();
				try {
					transaction.commit(progressMonitor.getProgressMonitor());
				} catch (CommitException e) {
					e.printStackTrace();
				}
				progressMonitor.close();
			}
		});