Use channelId for ReactorNettyWebSocketSession's id

Closes gh-35883

spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/NettyWebSocketSessionSupport.java

@@ -61,9 +61,20 @@ public abstract class NettyWebSocketSessionSupport<T> extends AbstractWebSocketS
 		messageTypes.put(PongWebSocketFrame.class, WebSocketMessage.Type.PONG);
 	}
 
-
+	/**
+	 * Constructor that uses the hashcode of the delegate as the session id.
+	 */
 	protected NettyWebSocketSessionSupport(T delegate, HandshakeInfo info, NettyDataBufferFactory factory) {
-		super(delegate, ObjectUtils.getIdentityHexString(delegate), info, factory);
+		this(delegate, ObjectUtils.getIdentityHexString(delegate), info, factory);
+	}
+
+	/**
+	 * Variant of {@link #NettyWebSocketSessionSupport(Object, HandshakeInfo, NettyDataBufferFactory)}
+	 * with a given WebSocket session id.
+	 * @since 6.2.15
+	 */
+	protected NettyWebSocketSessionSupport(T delegate, String id, HandshakeInfo info, NettyDataBufferFactory factory) {
+		super(delegate, id, info, factory);
 	}
 
 

spring-webflux/src/main/java/org/springframework/web/reactive/socket/adapter/ReactorNettyWebSocketSession.java

@@ -64,14 +64,18 @@ public class ReactorNettyWebSocketSession
 	 * Constructor with an additional maxFramePayloadLength argument.
 	 * @since 5.1
 	 */
-	@SuppressWarnings("rawtypes")
 	public ReactorNettyWebSocketSession(WebsocketInbound inbound, WebsocketOutbound outbound,
 			HandshakeInfo info, NettyDataBufferFactory bufferFactory,
 			int maxFramePayloadLength) {
 
-		super(new WebSocketConnection(inbound, outbound), info, bufferFactory);
+		super(new WebSocketConnection(inbound, outbound), getChannelId(inbound).asLongText(), info, bufferFactory);
 		this.maxFramePayloadLength = maxFramePayloadLength;
-		this.channelId = ((ChannelOperations) inbound).channel().id();
+		this.channelId = getChannelId(inbound);
+	}
+
+	@SuppressWarnings("rawtypes")
+	private static ChannelId getChannelId(WebsocketInbound inbound) {
+		return ((ChannelOperations) inbound).channel().id();
 	}