protected void shutDown() throws Exception {}

  /**
   * Invoked to request the service to stop.
   *
   * <p>By default this method does nothing.
   *
   * <p>Currently, this method is invoked while holding a lock. If an implementation of this method
   * blocks, it can prevent this service from changing state. If you need to performing a blocking
   * operation in order to trigger shutdown, consider instead registering a listener and

                        }

                        if ( dfd == null || !dfd.isValid() ) {
                            // don't reopen the file for every round if it's not necessary, keep the lock
                            dfd = openCopyTargetFile(dest, src.getAttributes(), !write);
                        }

      return Longs.fromBytes(
          bytes[15], bytes[14], bytes[13], bytes[12], bytes[11], bytes[10], bytes[9], bytes[8]);
    }
  };

  /**
   * Models a lock-free array of bits.
   *
   * <p>We use this instead of java.util.BitSet because we need access to the array of longs and we
   * need compare-and-swap.
   */
  static final class LockFreeBitArray {

     *
     * <ol>
     *   <li>Update the {@link #servicesByState()}
     *   <li>Update the {@link #startupTimers}
     *   <li>Based on the new state queue listeners to run
     *   <li>Run the listeners (outside of the lock)
     * </ol>
     */
    void transitionService(final Service service, State from, State to) {
      checkNotNull(service);
      checkArgument(from != to);
      monitor.enter();
      try {

    service.addListener(new RecordingListener(service), directExecutor());
    Thread thread =
        new Thread() {
          @Override
          public void run() {
            // Internally stopAsync() grabs a lock, this could be any such method on
            // AbstractService.
            service.stopAsync();
          }
        };
    thread.start();
    thread.join(LONG_TIMEOUT_MILLIS);

        Exception ex0 = null;

        try {
            /*
             * We cannot synchronize (run_thread) here or the caller's
             * thread.wait( timeout ) cannot reaquire the lock and
             * return which would render the timeout effectively useless.
             */
            if ( this.state != 5 && this.state != 6 ) {
                doConnect();
            }
        }

            @Override
            public void close() throws IOException {
                if (delegate != null) {
                    delegate.close();
                }
            }
        };
        this.lock = this.in;
    }

    private Reader transform(Reader in) throws IOException {
        if (jqueryFiles == null || releaseNotesJavascript == null || baseCss == null || releaseNotesCss == null) {

    service.addListener(new RecordingListener(service), directExecutor());
    Thread thread =
        new Thread() {
          @Override
          public void run() {
            // Internally stopAsync() grabs a lock, this could be any such method on
            // AbstractService.
            service.stopAsync();
          }
        };
    thread.start();
    thread.join(LONG_TIMEOUT_MILLIS);

// This file is currently unlocked (change this line if you lock the file)
//
// $Log: MD4.java,v $
// Revision 1.2  1998/01/05 03:41:19  iang
// Added references only.
//
// Revision 1.1.1.1  1997/11/03 22:36:56  hopwood
// + Imported to CVS (tagged as 'start').
//
// Revision 0.1.0.0  1997/07/14  R. Naffah
// + original version
//
// $Endlog$
/*
 * Copyright (c) 1997 Systemics Ltd

   * value, you should always choose it explicitly.
   *
   * <p>The current implementation uses the concurrency level to create a fixed number of hashtable
   * segments, each governed by its own write lock. The segment lock is taken once for each explicit
   * write, and twice for each cache loading computation (once prior to loading the new value, and
   * once after loading completes). Much internal cache management is performed at the segment