* rbd: default image format to v2 instead of deprecated v1 ([#51574](https://github.com/kubernetes/kubernetes/pull/51574), [@dillaman](https://github.com/dillaman))
* Surface reasonable error when client detects connection closed. ([#51381](https://github.com/kubernetes/kubernetes/pull/51381), [@mengqiy](https://github.com/mengqiy))

            executor.shutdown();
        }
    }

    /**
     * Test close() method
     */
    @Test
    void testClose() throws CIFSException {
        // Execute
        watchHandle.close();

        // Verify close was called
        verify(watchHandle, times(1)).close();
    }

    /**
     * Test close() method throwing CIFSException
     */
    @Test

            return invocation.getArgument(1);
        });

        // When: Create iterator and close multiple times
        NetServerEnumIterator iterator = new NetServerEnumIterator(parent, treeHandle, "*", 0, null);

        iterator.close();
        iterator.close(); // Second close should be safe

        // Then: Tree handle should be released only once
        verify(treeHandle, times(1)).release();

        return this.ntHash;
    }

    @Override
    public NtlmPasswordAuthenticator clone() {
        final NtlmNtHashAuthenticator cloned = new NtlmNtHashAuthenticator(this.ntHash.clone());
        cloneInternal(cloned, this);
        return cloned;
    }

            return null;
        }).when(mockDcerpcHandle).sendrecv(any(MsrpcLsarClose.class));

        // Close once
        handle.close();

        // Act
        // Try to close again
        handle.close();

        // Assert
        // Verify sendrecv was called once for open and only once for close
        verify(mockDcerpcHandle, times(1)).sendrecv(any(MsrpcLsarOpenPolicy2.class));

                            timingRatio, TIMING_TOLERANCE, timeStart, timeMiddle, timeEnd));
        } finally {
            // Clean up resources
            baseAuth.close();
            startAuth.close();
            middleAuth.close();
            endAuth.close();
        }
    }

    /**
     * Test constant-time comparison with various password lengths.
     */
    @Test

    void testClose_True() throws CIFSException {
        // Test close() method when true
        when(mockDelegate.close()).thenReturn(true);
        assertTrue(cifsContextWrapper.close());
        verify(mockDelegate).close();
    }

    @Test
    void testClose_False() throws CIFSException {
        // Test close() method when false
        when(mockDelegate.close()).thenReturn(false);

    socketAdapters.find { it.matchesSocket(sslSocket) }?.getSelectedProtocol(sslSocket)

  override fun getStackTraceForCloseable(closer: String): Any? =
    if (Build.VERSION.SDK_INT >= 30) {
      CloseGuard().apply { open(closer) }
    } else {
      super.getStackTraceForCloseable(closer)
    }

  override fun logCloseableLeak(
    message: String,
    stackTrace: Any?,
  ) {
    if (Build.VERSION.SDK_INT >= 30) {

}

type pooledFlateWriter struct {
	mu sync.Mutex // guards Close and Write
	fw *flate.Writer
}

func (w *pooledFlateWriter) Write(p []byte) (n int, err error) {
	w.mu.Lock()
	defer w.mu.Unlock()
	if w.fw == nil {
		return 0, errors.New("Write after Close")
	}
	return w.fw.Write(p)
}

func (w *pooledFlateWriter) Close() error {
	w.mu.Lock()
	defer w.mu.Unlock()
	var err error
	if w.fw != nil {

	if err != nil && err != ErrWriteTooLong {
		tw.err = err
	}
	return n, err
}

// Close closes the tar archive by flushing the padding, and writing the footer.
// If the current file (from a prior call to [Writer.WriteHeader]) is not fully written,
// then this returns an error.
func (tw *Writer) Close() error {
	if tw.err == ErrWriteAfterClose {
		return nil
	}
	if tw.err != nil {
		return tw.err
	}