code: @Override
  	public void loadFromXML(final InputStream in) throws IOException {
  		lock.writeLock().lock();
  		try {
  			properties.loadFromXML(in);
  		} finally {
  			lock.writeLock().unlock();
  		}
  	}
docs: /*
  (non-Javadoc)
  
  @see java.util.Properties#loadFromXML(java.io.InputStream)