assertTrue(stopwatch.isRunning());
  }

  public void testStop() {
    stopwatch.start();
    assertSame(stopwatch, stopwatch.stop());
    assertFalse(stopwatch.isRunning());
  }

  public void testStop_new() {
    try {
      stopwatch.stop();
      fail();
    } catch (IllegalStateException expected) {
    }
    assertFalse(stopwatch.isRunning());
  }

  public void testStop_alreadyStopped() {

    assertTrue(stopwatch.isRunning());
  }

  public void testStop() {
    stopwatch.start();
    assertSame(stopwatch, stopwatch.stop());
    assertFalse(stopwatch.isRunning());
  }

  public void testStop_new() {
    try {
      stopwatch.stop();
      fail();
    } catch (IllegalStateException expected) {
    }
    assertFalse(stopwatch.isRunning());
  }

  public void testStop_alreadyStopped() {

  enum ReadStrategy {
    TO_BYTE_ARRAY_NEW_STRING {
      @Override
      String read(ByteSource byteSource, Charset cs) throws IOException {
        return new String(byteSource.read(), cs);
      }
    },
    USING_CHARSTREAMS_COPY {
      @Override
      String read(ByteSource byteSource, Charset cs) throws IOException {
        StringBuilder sb = new StringBuilder();

  enum ReadStrategy {
    TO_BYTE_ARRAY_NEW_STRING {
      @Override
      String read(ByteSource byteSource, Charset cs) throws IOException {
        return new String(byteSource.read(), cs);
      }
    },
    USING_CHARSTREAMS_COPY {
      @Override
      String read(ByteSource byteSource, Charset cs) throws IOException {
        StringBuilder sb = new StringBuilder();

    // create disposition

    /* Creates a new file or supersedes the existing one
     */

    static final int FILE_SUPERSEDE    = 0x0;

    /* Open the file or fail if it does not exist
     * aka OPEN_EXISTING
     */

    static final int FILE_OPEN         = 0x1;

    /* Create the file or fail if it does not exist
     * aka CREATE_NEW
     */

    static final int FILE_CREATE       = 0x2;

    // create disposition

    /*
     * Creates a new file or supersedes the existing one
     */

    static final int FILE_SUPERSEDE = 0x0;

    /*
     * Open the file or fail if it does not exist
     * aka OPEN_EXISTING
     */

    static final int FILE_OPEN = 0x1;

    /*
     * Create the file or fail if it does not exist
     * aka CREATE_NEW
     */

    static final int FILE_CREATE = 0x2;

        final Map<String, Object> requestBody = new HashMap<>();
        final String keyProp = NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        return requestBody;
    }

    private static final String NEW_SUFFIX = "_new";

    @Override
    protected Map<String, Object> getUpdateMap() {
        final Map<String, Object> requestBody = new HashMap<>();

    testRotate(new byte[] {1, 2}, -1, new byte[] {2, 1});
    testRotate(new byte[] {1, 2}, -2, new byte[] {1, 2});
    testRotate(new byte[] {1, 2}, 0, new byte[] {1, 2});
    testRotate(new byte[] {1, 2}, 1, new byte[] {2, 1});
    testRotate(new byte[] {1, 2}, 2, new byte[] {1, 2});
    testRotate(new byte[] {1, 2}, 3, new byte[] {2, 1});

    testRotate(new byte[] {1, 2, 3}, -5, new byte[] {3, 1, 2});

    // ? extends T
    assertAssignable(new TypeToken<List<N11>>() {}, new TypeToken<List<? extends N1>>() {});
    assertNotAssignable(new TypeToken<List<N1>>() {}, new TypeToken<List<? extends N11>>() {});
    assertNotAssignable(new TypeToken<List<Number>>() {}, new TypeToken<List<? extends N11>>() {});

    // ? extends Number
    assertAssignable(new TypeToken<List<N1>>() {}, new TypeToken<List<? extends Number>>() {});

  }

  public void testFailStart() throws Exception {
    Service a = new NoOpService();
    Service b = new FailStartService();
    Service c = new NoOpService();
    Service d = new FailStartService();
    Service e = new NoOpService();
    ServiceManager manager = new ServiceManager(asList(a, b, c, d, e));
    RecordingListener listener = new RecordingListener();
    manager.addListener(listener, directExecutor());