diff --git a/spring-core/src/main/java/org/springframework/core/io/buffer/JettyDataBuffer.java b/spring-core/src/main/java/org/springframework/core/io/buffer/JettyDataBuffer.java
index 470be904fa1..5b2f30e0f6a 100644
--- a/spring-core/src/main/java/org/springframework/core/io/buffer/JettyDataBuffer.java
+++ b/spring-core/src/main/java/org/springframework/core/io/buffer/JettyDataBuffer.java
@@ -54,7 +54,6 @@ public final class JettyDataBuffer implements PooledDataBuffer {
 		this.bufferFactory = bufferFactory;
 		this.delegate = delegate;
 		this.chunk = chunk;
-		this.chunk.retain();
 	}
 
 	JettyDataBuffer(JettyDataBufferFactory bufferFactory, DefaultDataBuffer delegate) {
diff --git a/spring-core/src/test/java/org/springframework/core/io/buffer/JettyDataBufferTests.java b/spring-core/src/test/java/org/springframework/core/io/buffer/JettyDataBufferTests.java
index fd6d4e15fdc..2b14ba46279 100644
--- a/spring-core/src/test/java/org/springframework/core/io/buffer/JettyDataBufferTests.java
+++ b/spring-core/src/test/java/org/springframework/core/io/buffer/JettyDataBufferTests.java
@@ -18,33 +18,34 @@ package org.springframework.core.io.buffer;
 
 import java.nio.ByteBuffer;
 
+import org.eclipse.jetty.io.ArrayByteBufferPool;
 import org.eclipse.jetty.io.Content;
+import org.eclipse.jetty.io.RetainableByteBuffer;
+import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Test;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
-import static org.mockito.BDDMockito.given;
-import static org.mockito.BDDMockito.then;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.times;
 
 /**
+ * Tests for {@link JettyDataBuffer}
  * @author Arjen Poutsma
+ * @author Brian Clozel
  */
 public class JettyDataBufferTests {
 
 	private final JettyDataBufferFactory dataBufferFactory = new JettyDataBufferFactory();
 
+	private ArrayByteBufferPool.Tracking byteBufferPool = new ArrayByteBufferPool.Tracking();
+
 	@Test
 	void releaseRetainChunk() {
-		ByteBuffer buffer = ByteBuffer.allocate(3);
-		Content.Chunk mockChunk = mock();
-		given(mockChunk.getByteBuffer()).willReturn(buffer);
-		given(mockChunk.release()).willReturn(false, false, true);
+		RetainableByteBuffer retainableBuffer = byteBufferPool.acquire(3, false);
+		ByteBuffer buffer = retainableBuffer.getByteBuffer();
+		buffer.position(0).limit(1);
+		Content.Chunk chunk = Content.Chunk.asChunk(buffer, false, retainableBuffer);
 
-
-
-		JettyDataBuffer dataBuffer = this.dataBufferFactory.wrap(mockChunk);
+		JettyDataBuffer dataBuffer = this.dataBufferFactory.wrap(chunk);
 		dataBuffer.retain();
 		dataBuffer.retain();
 		assertThat(dataBuffer.release()).isFalse();
@@ -52,8 +53,12 @@ public class JettyDataBufferTests {
 		assertThat(dataBuffer.release()).isTrue();
 
 		assertThatIllegalStateException().isThrownBy(dataBuffer::release);
+		assertThat(retainableBuffer.isRetained()).isFalse();
+		assertThat(byteBufferPool.getLeaks()).isEmpty();
+	}
 
-		then(mockChunk).should(times(3)).retain();
-		then(mockChunk).should(times(3)).release();
+	@AfterEach
+	public void tearDown() throws Exception {
+		this.byteBufferPool.clear();
 	}
 }
diff --git a/spring-web/src/main/java/org/springframework/http/server/reactive/JettyCoreServerHttpRequest.java b/spring-web/src/main/java/org/springframework/http/server/reactive/JettyCoreServerHttpRequest.java
index 26f39f3064f..3d8cd0c0dec 100644
--- a/spring-web/src/main/java/org/springframework/http/server/reactive/JettyCoreServerHttpRequest.java
+++ b/spring-web/src/main/java/org/springframework/http/server/reactive/JettyCoreServerHttpRequest.java
@@ -112,7 +112,10 @@ class JettyCoreServerHttpRequest extends AbstractServerHttpRequest {
 		// We access the request body as a Flow.Publisher, which is wrapped as an org.reactivestreams.Publisher and
 		// then wrapped as a Flux.
 		return Flux.from(FlowAdapters.toPublisher(Content.Source.asPublisher(this.request)))
-				.map(this.dataBufferFactory::wrap);
+				.map(chunk -> {
+					chunk.retain();
+					return this.dataBufferFactory.wrap(chunk);
+				});
 	}
 
 }