ioe.initCause(root);
        }
        return ioe;
    }

    /**
     * Closes this input stream and releases any system resources associated with the stream.
     *
     * @throws IOException
     *             if a network error occurs
     */

    @Override
    public void close() throws IOException {
        try {
            final SmbFileHandleImpl h = this.handle;

            }
        }
    }

    /**
     * Destroys the client and closes connections.
     */
    @PreDestroy
    public void destroy() {
        if (client != null) {
            try {
                client.close();
            } catch (final OpenSearchException e) {
                logger.warn("Failed to close OpenSearch client: address={}", address, e);
            }

    charBuffer = CharBuffer.allocate(bufferSize);
    Java8Compatibility.flip(charBuffer);

    byteBuffer = ByteBuffer.allocate(bufferSize);
  }

  @Override
  public void close() throws IOException {
    reader.close();
  }

  @Override
  public int read() throws IOException {
    return (read(singleByte) == 1) ? toUnsignedInt(singleByte[0]) : -1;
  }

@SuppressSignatureCheck
sealed class CallEvent {
  abstract val timestampNs: Long
  abstract val call: Call

  val name: String
    get() = javaClass.simpleName

  /** Returns if the event closes this event, or null if this is no open event. */
  open fun closes(event: CallEvent): Boolean? = null

  data class DispatcherQueueStart(
    override val timestampNs: Long,
    override val call: Call,
    val dispatcher: Dispatcher,
  ) : CallEvent()

     */
    @Test
    void testClose_multipleTimes() {
        doNothing().when(smbTree).close();

        smbTree.close();
        smbTree.close();
        smbTree.close();

        verify(smbTree, times(3)).close();
    }

    /**
     * Test for close() method throwing exception.
     * Verifies behavior when close throws an exception.
     */
    @Test
    void testClose_throwsException() {

        org.junit.platform.commons.JUnitException: Failed to close extension context
	        at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	        at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
        Caused by: java.io.IOException: Failed to delete temp directory /var/folders/_2/vxp7qn2x7qzd0zqqm8p128lh0000gq/T/junit-4205933054320696172.

    void testReadWriteMethodsReturnValues() {
        SmbComClose close = new SmbComClose(10, 5000L);
        assertEquals(0, close.readParameterWordsWireFormat(new byte[10], 0));
        assertEquals(0, close.readBytesWireFormat(new byte[10], 0));
        assertEquals(0, close.writeBytesWireFormat(new byte[10], 0));
        assertEquals(6, close.writeParameterWordsWireFormat(new byte[10], 0));
    }

    /**

        cos.write(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }); // exceeds threshold

        // ## Act & Assert ##
        // Multiple close() calls should be safe
        cos.close();
        cos.close();
        cos.close();
    }

        doThrow(new CIFSException("Failed to close")).when(smbFileHandle).close(lastWriteTime);
        assertThrows(CIFSException.class, () -> smbFileHandle.close(lastWriteTime),
                "close(long) should throw CIFSException when closing fails.");
        verify(smbFileHandle, times(1)).close(lastWriteTime);
    }

    /**
     * Test close() successfully.
     *
     * @throws CIFSException
     */

        Kerb5Authenticator cloned = auth.clone();

        assertNotSame(auth, cloned);
        assertEquals(subj, cloned.getSubject());
        assertEquals("alice", cloned.getUser());
        assertEquals("EXAMPLE.COM", cloned.getRealm());
        assertEquals("cifs", cloned.getService());
        assertEquals(123, cloned.getUserLifeTime());
        assertEquals(456, cloned.getLifeTime());