Remove ineffective JettyByteBufferIterator from WebSocket adapter

In JettyWebSocketHandlerAdapter, JettyByteBufferIterator does not actually add extra behavior (in contrast to JettyClientHttpConnector).

spring-web/src/main/java/org/springframework/http/client/reactive/JettyClientHttpConnector.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -153,7 +153,6 @@ private static final class JettyDataBuffer implements PooledDataBuffer {
 
 		private final AtomicInteger refCount = new AtomicInteger(1);
 
-
 		public JettyDataBuffer(DataBuffer delegate, Content.Chunk chunk) {
 			Assert.notNull(delegate, "Delegate must not be null");
 			Assert.notNull(chunk, "Chunk must not be null");
@@ -390,7 +389,6 @@ private static final class JettyByteBufferIterator implements ByteBufferIterator
 
 			private final Content.Chunk chunk;
 
-
 			public JettyByteBufferIterator(ByteBufferIterator delegate, Content.Chunk chunk) {
 				Assert.notNull(delegate, "Delegate must not be null");
 				Assert.notNull(chunk, "Chunk must not be null");
@@ -400,7 +398,6 @@ public JettyByteBufferIterator(ByteBufferIterator delegate, Content.Chunk chunk)
 				this.chunk.retain();
 			}
 
-
 			@Override
 			public void close() {
 				this.delegate.close();

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

@@ -306,48 +306,18 @@ public void toByteBuffer(int srcPos, ByteBuffer dest, int destPos, int length) {
 
 		@Override
 		public ByteBufferIterator readableByteBuffers() {
-			ByteBufferIterator delegateIterator = this.delegate.readableByteBuffers();
-			return new JettyByteBufferIterator(delegateIterator);
+			return this.delegate.readableByteBuffers();
 		}
 
 		@Override
 		public ByteBufferIterator writableByteBuffers() {
-			ByteBufferIterator delegateIterator = this.delegate.writableByteBuffers();
-			return new JettyByteBufferIterator(delegateIterator);
+			return this.delegate.writableByteBuffers();
 		}
 
 		@Override
 		public String toString(int index, int length, Charset charset) {
 			return this.delegate.toString(index, length, charset);
 		}
-
-
-		private static class JettyByteBufferIterator implements ByteBufferIterator {
-
-			private final ByteBufferIterator delegate;
-
-
-			JettyByteBufferIterator(ByteBufferIterator delegate) {
-				Assert.notNull(delegate, "Delegate must not be null");
-
-				this.delegate = delegate;
-			}
-
-			@Override
-			public void close() {
-				this.delegate.close();
-			}
-
-			@Override
-			public boolean hasNext() {
-				return this.delegate.hasNext();
-			}
-
-			@Override
-			public ByteBuffer next() {
-				return this.delegate.next();
-			}
-		}
 	}
 
 }