diff --git a/spring-core/src/main/java/org/springframework/core/io/buffer/NettyDataBuffer.java b/spring-core/src/main/java/org/springframework/core/io/buffer/NettyDataBuffer.java
index b603b0d347f..dd5faf593bc 100644
--- a/spring-core/src/main/java/org/springframework/core/io/buffer/NettyDataBuffer.java
+++ b/spring-core/src/main/java/org/springframework/core/io/buffer/NettyDataBuffer.java
@@ -179,15 +179,18 @@ public class NettyDataBuffer implements PooledDataBuffer {
 
 		if (buffers.length > 0) {
 			if (hasNettyDataBuffers(buffers)) {
-				ByteBuf[] nativeBuffers = Arrays.stream(buffers)
-						.map(b -> ((NettyDataBuffer) b).getNativeBuffer())
-						.toArray(ByteBuf[]::new);
+				ByteBuf[] nativeBuffers = new ByteBuf[buffers.length];
+				for (int i = 0 ; i < buffers.length; i++) {
+					nativeBuffers[i] = ((NettyDataBuffer) buffers[i]).getNativeBuffer();
+				}
 				write(nativeBuffers);
 			}
 			else {
-				ByteBuffer[] byteBuffers =
-						Arrays.stream(buffers).map(DataBuffer::asByteBuffer)
-								.toArray(ByteBuffer[]::new);
+				ByteBuffer[] byteBuffers = new ByteBuffer[buffers.length];
+				for (int i = 0 ; i < buffers.length; i++) {
+					byteBuffers[i] = buffers[i].asByteBuffer();
+
+				}
 				write(byteBuffers);
 			}
 		}
diff --git a/spring-core/src/main/java/org/springframework/core/io/buffer/NettyDataBufferFactory.java b/spring-core/src/main/java/org/springframework/core/io/buffer/NettyDataBufferFactory.java
index c1236354446..f91be4eea93 100644
--- a/spring-core/src/main/java/org/springframework/core/io/buffer/NettyDataBufferFactory.java
+++ b/spring-core/src/main/java/org/springframework/core/io/buffer/NettyDataBufferFactory.java
@@ -82,6 +82,15 @@ public class NettyDataBufferFactory implements DataBufferFactory {
 		return new NettyDataBuffer(byteBuf, this);
 	}
 
+	/**
+	 * Wrap the given Netty {@link ByteBuf} in a {@code NettyDataBuffer}.
+	 * @param byteBuf the Netty byte buffer to wrap
+	 * @return the wrapped buffer
+	 */
+	public NettyDataBuffer wrap(ByteBuf byteBuf) {
+		return new NettyDataBuffer(byteBuf, this);
+	}
+
 	/**
 	 * {@inheritDoc}
 	 * <p>This implementation uses Netty's {@link CompositeByteBuf}.
@@ -97,15 +106,6 @@ public class NettyDataBufferFactory implements DataBufferFactory {
 		return new NettyDataBuffer(composite, this);
 	}
 
-	/**
-	 * Wrap the given Netty {@link ByteBuf} in a {@code NettyDataBuffer}.
-	 * @param byteBuf the Netty byte buffer to wrap
-	 * @return the wrapped buffer
-	 */
-	public NettyDataBuffer wrap(ByteBuf byteBuf) {
-		return new NettyDataBuffer(byteBuf, this);
-	}
-
 	/**
 	 * Return the given Netty {@link DataBuffer} as a {@link ByteBuf}. Returns the
 	 * {@linkplain NettyDataBuffer#getNativeBuffer() native buffer} if {@code buffer} is
diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/result/method/annotation/AbstractMessageReaderArgumentResolver.java b/spring-webflux/src/main/java/org/springframework/web/reactive/result/method/annotation/AbstractMessageReaderArgumentResolver.java
index 916b56f04b8..9e676ad784c 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/result/method/annotation/AbstractMessageReaderArgumentResolver.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/result/method/annotation/AbstractMessageReaderArgumentResolver.java
@@ -127,13 +127,13 @@ public abstract class AbstractMessageReaderArgumentResolver extends HandlerMetho
 
 	/**
 	 * Read the body from a method argument with {@link HttpMessageReader}.
-	 * @param bodyParam the {@link MethodParameter} to read
-	 * @param actualParam the actual {@link MethodParameter} to read; could be different
-	 * from {@code bodyParameter} when processing {@code HttpEntity} for example
+	 * @param bodyParam represents the element type for the body
+	 * @param actualParam the actual method argument type; possibly different
+	 * from {@code bodyParam}, e.g. for an {@code HttpEntity} argument
 	 * @param isBodyRequired true if the body is required
 	 * @param bindingContext the binding context to use
 	 * @param exchange the current exchange
-	 * @return the body
+	 * @return a Mono with the value to use for the method argument
 	 * @since 5.0.2
 	 */
 	protected Mono<Object> readBody(MethodParameter bodyParam, @Nullable MethodParameter actualParam,
@@ -151,6 +151,7 @@ public abstract class AbstractMessageReaderArgumentResolver extends HandlerMetho
 
 		MediaType contentType = request.getHeaders().getContentType();
 		MediaType mediaType = (contentType != null ? contentType : MediaType.APPLICATION_OCTET_STREAM);
+		Object[] hints = extractValidationHints(bodyParam);
 
 		if (logger.isDebugEnabled()) {
 			logger.debug(exchange.getLogPrefix() + (contentType != null ?
@@ -170,7 +171,6 @@ public abstract class AbstractMessageReaderArgumentResolver extends HandlerMetho
 					if (isBodyRequired) {
 						flux = flux.switchIfEmpty(Flux.error(() -> handleMissingBody(bodyParam)));
 					}
-					Object[] hints = extractValidationHints(bodyParam);
 					if (hints != null) {
 						flux = flux.doOnNext(target ->
 								validate(target, hints, bodyParam, bindingContext, exchange));
@@ -187,7 +187,6 @@ public abstract class AbstractMessageReaderArgumentResolver extends HandlerMetho
 					if (isBodyRequired) {
 						mono = mono.switchIfEmpty(Mono.error(() -> handleMissingBody(bodyParam)));
 					}
-					Object[] hints = extractValidationHints(bodyParam);
 					if (hints != null) {
 						mono = mono.doOnNext(target ->
 								validate(target, hints, bodyParam, bindingContext, exchange));