protected Credentials getDefaultCredentials() {
            return defaultCreds;
        }

        @Override
        public boolean close() throws CIFSException {
            closeCalled = true;
            // Call super.close() to ensure the shutdown hook is removed
            return super.close();
        }

        public boolean isCloseCalled() {
            return closeCalled;
        }

        @Override

        TestIterator iterator = new TestIterator(null);
        iterator.close();

        verify(delegate).close();
    }

    @Test
    @DisplayName("Close propagates exception")
    void closeException() throws CIFSException {
        when(delegate.hasNext()).thenReturn(false);
        doThrow(new CIFSException("Close failed")).when(delegate).close();

        TestIterator iterator = new TestIterator(null);

    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);

                            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

    while (!toClose.isEmpty()) {
      toClose.pop().close()
    }
    taskFaker.close()

    (filesystem.delegate as? FakeFileSystem)?.checkNoOpenFiles()
  }

  @ParameterizedTest
  @ArgumentsSource(FileSystemParamProvider::class)
  fun emptyCache(parameters: Pair<FileSystem, Boolean>) {
    setUp(parameters.first, parameters.second)
    cache.close()
    assertJournalEquals()
  }

  }

  public void testNullCloseable() throws IOException {
    Closer closer = Closer.create();
    closer.register(null);
    closer.close();
  }

  /**
   * Asserts that an exception was thrown when trying to close each of the given throwables and that
   * each such exception was suppressed because of the given thrown exception.
   */
  private void assertSuppressed(Suppression... expected) {

 * * `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.
 *
 * For synchronous calls, the easiest way to make sure a response body is closed is with a `try`

import jcifs.internal.smb2.ServerMessageBlock2Request;
import jcifs.internal.smb2.Smb2Constants;
import jcifs.internal.util.SMBUtil;
import jcifs.util.Hexdump;

/**
 * SMB2 Close request message. This command is used to close a file or directory
 * that was previously opened.
 *
 * @author mbechler
 *
 */
public class Smb2CloseRequest extends ServerMessageBlock2Request<Smb2CloseResponse> implements RequestWithFileId {

    }

    // 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);

  private var receivedCloseCode = -1

  /** The close reason from the peer, or null if this web socket has not yet read a close frame. */
  private var receivedCloseReason: String? = null

  /** True if this web socket failed and the listener has been notified. */
  private var failed = false

  /** Total number of pings sent by this web socket. */