import org.eclipse.jetty.util.MultiException; //导入依赖的package包/类
private void startServer(final Server server, final URL stopURL) throws Exception {
	try {
		server.start();
	} catch (final MultiException e) {
		final long bindExceptions = e.getThrowables().stream().filter(t -> t instanceof BindException).count();

		if (bindExceptions > 0) {
			LOGGER.log(Level.WARNING, "Port already used, trying to shutdown other instance");
			// We assume it is already running?
			// Kill the old one
			this.stopOtherInstance(stopURL);

			// One more try
			LOGGER.log(Level.WARNING, "Re-trying to start server.");
			server.start();
		} else {
			LOGGER.log(Level.SEVERE, "Could not start server.", e);
			return;
		}
	}
	LOGGER.info(String.format("%s is ready to serve. URL is \"%s\".", CommonStarter.META_DATA.getAppName(), server.getURI()));
}
 

import org.eclipse.jetty.util.MultiException; //导入依赖的package包/类
/**
 * @see org.mulgara.server.HttpServices#start()
 */
@SuppressWarnings("unchecked")
public void start() throws ExceptionList, Exception {
  try {
    if (httpServer != null) httpServer.start();
    if (httpPublicServer != null) httpPublicServer.start();
  } catch (MultiException e) {
    throw new ExceptionList(e.getThrowables());
  }
}