checkNotNull(sink);

    Closer closer = Closer.create();
    try {
      Reader reader = closer.register(openStream());
      Writer writer = closer.register(sink.openStream());
      return CharStreams.copy(reader, writer);
    } catch (Throwable e) {
      throw closer.rethrow(e);
    } finally {
      closer.close();
    }
  }

  /**

    checkNotNull(sink);

    Closer closer = Closer.create();
    try {
      Reader reader = closer.register(openStream());
      Writer writer = closer.register(sink.openStream());
      return CharStreams.copy(reader, writer);
    } catch (Throwable e) {
      throw closer.rethrow(e);
    } finally {
      closer.close();
    }
  }

  /**

	r.mutex.Lock()
	r.refs++
	r.mutex.Unlock()
}

// Close - this closer implements a special closer
// closes the underlying fd only when the refs
// reach zero.
func (r *RLockedFile) Close() (err error) {
	r.mutex.Lock()
	defer r.mutex.Unlock()

	if r.refs == 0 {
		return os.ErrInvalid
	}

	r.refs--
	if r.refs == 0 {
		err = r.File.Close()
	}

	return err
}

            lenient().doNothing().when((DcerpcHandle) handle).close();

            // Setup close to call real method which will then call our mocked components
            doCallRealMethod().when(handle).close();

            handle.close();

            verify(mockSmbPipeHandleInternal).close();
            verify(mockSmbNamedPipe).close();
        }

        @Test

          val source = Buffer().writeUtf8("hello")
          return object : ForwardingSource(source) {
            override fun close() {
              closed = true
              super.close()
            }
          }.buffer()
        }
      }
    body.source().close()
    assertThat(closed).isTrue()
  }

  @Test
  fun throwingUnderlyingSourceClosesQuietly() {
    val body: ResponseBody =

        assertEquals("working", result);

        // Close it
        cbToClose.close();

        // Should not throw exception (close should be idempotent)
        cbToClose.close();
    }

    @Test
    public void testEnhancedMetricsTracking() throws Exception {
        SmbCircuitBreaker cbWithEnhanced = new SmbCircuitBreaker("enhanced-test");

        try {

    }

    // close() should close underlying handle with 0L when valid
    @Test
    @DisplayName("close() closes underlying handle when valid")
    void close_validHandle_invokesClose() throws Exception {
        when(handle.isValid()).thenReturn(true);
        SmbWatchHandleImpl sut = new SmbWatchHandleImpl(handle, 0, false);

        sut.close();

        verify(handle, times(1)).close(0L);

 * must close this body by calling any of the following methods:
 *
 * * `Response.close()`
 * * `Response.body().close()`
 * * `Response.body().source().close()`
 * * `Response.body().charStream().close()`
 * * `Response.body().byteStream().close()`
 * * `Response.body().bytes()`
 * * `Response.body().string()`
 *
 * There is no benefit to invoking multiple `close()` methods for the same response body.
 *

		w.wLimit -= int64(n1)
		return n, err
	}
	n1, err = w.Writer.Write(p)
	w.wLimit -= int64(n1)
	return n, err
}

// Close closes the LimitWriter. It behaves like io.Closer.
func (w *LimitWriter) Close() error {
	if closer, ok := w.Writer.(io.Closer); ok {
		return closer.Close()
	}
	return nil
}

// LimitedWriter takes an io.Writer and returns an ioutil.LimitWriter.

    Closeables.closeQuietly(in);
    assertTrue(in.closed());
  }

  public void testCloseQuietly_readerWithEatenException() throws IOException {
    TestReader in = new TestReader(TestOption.CLOSE_THROWS);
    Closeables.closeQuietly(in);
    assertTrue(in.closed());
  }

  public void testCloseNull() throws IOException {
    Closeables.close(null, true);
    Closeables.close(null, false);
  }