class SneakyThrower<T extends Throwable> {
      @SuppressWarnings("unchecked") // intentionally unsafe for test
      void throwIt(Throwable t) throws T {
        throw (T) t;
      }
    }
    new SneakyThrower<Error>().throwIt(t);
  }

    class SneakyThrower<T extends Throwable> {
      @SuppressWarnings("unchecked") // not really safe, but that's the point
      void throwIt(Throwable t) throws T {
        throw (T) t;
      }
    }
    new SneakyThrower<Error>().throwIt(t);
  }

    class SneakyThrower<T extends Throwable> {
      @SuppressWarnings("unchecked") // not really safe, but that's the point
      void throwIt(Throwable t) throws T {
        throw (T) t;
      }
    }
    new SneakyThrower<Error>().throwIt(t);
  }

    // make sure that no exception is thrown if 'swallowException' is true
    // when the mock does throw an exception.
    setupCloseable(true);
    doClose(mockCloseable, true);
  }

  public void testClose_closeableWithThrownException() throws IOException {
    // make sure that the exception is thrown if 'swallowException' is false
    // when the mock does throw an exception.

   * @throws UncheckedExecutionException if an unchecked exception was thrown while loading the
   *     value
   * @throws ExecutionError if an error was thrown while loading the value
   */
  @CanIgnoreReturnValue // TODO(b/27479612): consider removing this?
  V get(K key) throws ExecutionException;

  /**
   * Returns the value associated with {@code key} in this cache, first loading that value if

    // make sure that no exception is thrown if 'swallowException' is true
    // when the mock does throw an exception.
    setupCloseable(true);
    doClose(mockCloseable, true);
  }

  public void testClose_closeableWithThrownException() throws IOException {
    // make sure that the exception is thrown if 'swallowException' is false
    // when the mock does throw an exception.

  public void testFlush_flushableWithEatenException() throws IOException {
    // make sure that no exception is thrown if 'swallowException' is true
    // when the mock does throw an exception on flush.
    setupFlushable(true);
    doFlush(mockFlushable, true, false);
  }

  public void testFlush_flushableWithThrownException() throws IOException {
    // make sure that the exception is thrown if 'swallowException' is false

  public int read() throws IOException {
    throwIf(closed);
    throwIf(READ_THROWS);
    return in.read();
  }

  @Override
  public int read(byte[] b, int off, int len) throws IOException {
    throwIf(closed);
    throwIf(READ_THROWS);
    return in.read(b, off, len);
  }

  @Override
  public long skip(long n) throws IOException {
    throwIf(closed);
    throwIf(SKIP_THROWS);
    return in.skip(n);
  }

    throwIf(closed);
    throwIf(WRITE_THROWS);
    super.write(b, off, len);
  }

  @Override
  public void write(int b) throws IOException {
    throwIf(closed);
    throwIf(WRITE_THROWS);
    super.write(b);
  }

  @Override
  public void close() throws IOException {
    closed = true;
    super.close();
    throwIf(CLOSE_THROWS);
  }

   *     does nothing
   * @param swallowIOException if true, don't propagate IO exceptions thrown by the {@code close}
   *     methods
   * @throws IOException if {@code swallowIOException} is false and {@code close} throws an {@code
   *     IOException}.
   */
  public static void close(@CheckForNull Closeable closeable, boolean swallowIOException)
      throws IOException {
    if (closeable == null) {
      return;
    }
    try {