*   <li><b>Convenience methods:</b> These are implementations of common operations that are
 *       typically implemented by opening a writer using one of the methods in the first category,
 *       doing something and finally closing the writer that was opened.
 * </ul>
 *
 * <p>Any {@link ByteSink} may be viewed as a {@code CharSink} with a specific {@linkplain Charset

        String str = response.toString();

        // Should start with the class name
        assertTrue(str.startsWith("Trans2SetFileInformationResponse["));

        // Should end with closing bracket
        assertTrue(str.endsWith("]"));

        // Should contain parent toString content
        // Note: The parent toString might include various fields
        assertNotNull(str);

        final SmbTreeHandleImpl t = this.tree;
        try {
            if (t != null && isValid()) {
                if (log.isDebugEnabled()) {
                    log.debug("Closing file handle " + this);
                }

                if (t.isSMB2()) {
                    final Smb2CloseRequest req = new Smb2CloseRequest(this.cfg, this.fileId);

           * place as Closeables logs.
           */
          Closeables.logger.log(
              Level.WARNING, "Suppressing exception thrown when closing " + closeable, suppressed);
        }
      };

                if (channel != null) {
                    try {
                        channel.close();
                    } catch (IOException e) {
                        getLogger().debug("Error closing FileChannel for resolution tracking file: " + touchfile, e);
                    }
                }
            }
        }
    }

    Date readLastUpdated(File touchfile, String key) {

    // TODO(cgdecker): Add CharSource.slice?
    StringBuilder builder = new StringBuilder();
    Reader reader = concatenated.openStream(); // no need to worry about closing
    for (int i = 0; i < 8; i++) {
      builder.append((char) reader.read());
    }
    assertEquals(expected, builder.toString());
  }

The connection lock is never held while doing I/O (even closing a socket) to prevent contention.

    // TODO(cgdecker): Add CharSource.slice?
    StringBuilder builder = new StringBuilder();
    Reader reader = concatenated.openStream(); // no need to worry about closing
    for (int i = 0; i < 8; i++) {
      builder.append((char) reader.read());
    }
    assertEquals(expected, builder.toString());
  }

        assertTrue(target.isStale());
    }

    @Test
    @DisplayName("getInput and getOutput throw after close")
    void testGetInputOutputAndClosed() throws CIFSException {
        // After closing the handle, further calls throw
        target.close();
        CIFSException e1 = assertThrows(SmbException.class, target::getInput);
        assertTrue(e1.getMessage().contains("Already closed"));

        }

        @Test
        @DisplayName("read after close throws 'Bad file descriptor'")
        void readAfterCloseThrows() throws Exception {
            SmbFileInputStream in = newStream();
            // closing should null tmp; subsequent readDirect should fail
            in.close();
            IOException ex = assertThrows(IOException.class, () -> in.readDirect(new byte[8], 0, 4));