code: protected void writeLine(final String line) {
  		getContainer().getShell().getDisplay().syncExec(
  			new Runnable() {
  				public void run() {
  					if (statusTextArea != null) {
  						statusTextArea.setText(line + '\n' + statusTextArea.getText()); 
  					}
  				}
  			}
  		);
  	}
docs: Writes a line to the status-text-area in the GUI-thread
  
  @param line