ESTABLISHED(3),      // Ready for use
    BINDING(4),         // Channel binding in progress
    ACTIVE(5),          // Actively transferring data
    FAILED(6),          // Connection failed
    CLOSING(7);         // Closing connection
    
    private final int value;
    
    ChannelState(int value) {
        this.value = value;
    }
}
```

### 3.2 Channel Capabilities
```java

/// info

Da es sich um einen WebSocket handelt, macht es keinen Sinn, eine `HTTPException` auszulösen, stattdessen lösen wir eine `WebSocketException` aus.

Sie können einen „Closing“-Code verwenden, aus den <a href="https://tools.ietf.org/html/rfc6455#section-7.4.1" class="external-link" target="_blank">gültigen Codes, die in der Spezifikation definiert sind</a>.

///

        assertTrue(s.contains(",flags=0x00"), "toString should include flags in hex");
        assertTrue(s.endsWith("]"), "toString should end with closing bracket");
    }

        MsrpcSamrCloseHandle capturedRpc = closeHandleCaptor.getValue();
        assertNotNull(capturedRpc);
        assertEquals(handle, capturedRpc.handle); // Ensure the handle itself is passed for closing
    }

    @Test
    void close_shouldDoNothingIfAlreadyClosed() throws IOException {
        // Arrange
        int access = 0x01;
        // Simulate successful open
        doAnswer(invocation -> {

 *   <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

    @Override
    public String toString() {
      return "CharStreams.nullWriter()";
    }
  }

  /**
   * Returns a Writer that sends all output to the given {@link Appendable} target. Closing the
   * writer will close the target if it is {@link Closeable}, and flushing the writer will flush the
   * target if it is {@link java.io.Flushable}.
   *
   * @param target the object to which output will be sent

                AutoCloseable resource = holder.resourceRef.get();
                if (resource != null) {
                    try {
                        log.warn("Auto-closing abandoned resource: {} ({}, age: {} ms)", holder.resourceId, holder.resourceType,
                                holder.getAge());
                        resource.close();
                        holder.closed = true;

            if (rdmaConnection != null) {
                try {
                    rdmaConnection.close();
                } catch (Exception e) {
                    log.warn("Error closing RDMA connection: {}", e.getMessage());
                }
                rdmaConnection = null;
            }
        }
        return delegate.disconnect(hard, inuse);
    }

    @Override

            throw new IOException("TCP RDMA write failed", e);
        }
    }

    @Override
    public void close() throws IOException {
        state = RdmaConnectionState.CLOSING;

        try {
            if (socketChannel != null) {
                socketChannel.close();
            }
        } finally {
            state = RdmaConnectionState.CLOSED;
        }

{* ../../docs_src/websockets/tutorial002_an_py310.py hl[68:69,82] *}

/// info

As this is a WebSocket it doesn't really make sense to raise an `HTTPException`, instead we raise a `WebSocketException`.

You can use a closing code from the <a href="https://tools.ietf.org/html/rfc6455#section-7.4.1" class="external-link" target="_blank">valid codes defined in the specification</a>.

///