diff --git a/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/DataBufferAllocator.java b/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/DataBufferAllocator.java
index e4586100f6..881de92684 100644
--- a/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/DataBufferAllocator.java
+++ b/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/DataBufferAllocator.java
@@ -42,20 +42,6 @@ public interface DataBufferAllocator {
 	 */
 	DataBuffer allocateBuffer(int initialCapacity);
 
-	/**
-	 * Allocates a data buffer of the given initial capacity on the heap.
-	 * @param initialCapacity the initial capacity of the buffer to allocate
-	 * @return the allocated buffer
-	 */
-	DataBuffer allocateHeapBuffer(int initialCapacity);
-
-	/**
-	 * Allocates a direct data buffer of the given initial capacity.
-	 * @param initialCapacity the initial capacity of the buffer to allocate
-	 * @return the allocated buffer
-	 */
-	DataBuffer allocateDirectBuffer(int initialCapacity);
-
 	/**
 	 * Wraps the given {@link ByteBuffer} in a {@code DataBuffer}.
 	 * @param byteBuffer the NIO byte buffer to wrap
diff --git a/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/DefaultDataBufferAllocator.java b/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/DefaultDataBufferAllocator.java
index 0f311978f5..fe320c995f 100644
--- a/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/DefaultDataBufferAllocator.java
+++ b/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/DefaultDataBufferAllocator.java
@@ -57,18 +57,9 @@ public class DefaultDataBufferAllocator implements DataBufferAllocator {
 
 	@Override
 	public DefaultDataBuffer allocateBuffer(int initialCapacity) {
-		return preferDirect ? allocateDirectBuffer(initialCapacity) :
-				allocateHeapBuffer(initialCapacity);
-	}
-
-	@Override
-	public DefaultDataBuffer allocateHeapBuffer(int initialCapacity) {
-		return new DefaultDataBuffer(ByteBuffer.allocate(initialCapacity));
-	}
-
-	@Override
-	public DefaultDataBuffer allocateDirectBuffer(int initialCapacity) {
-		return new DefaultDataBuffer(ByteBuffer.allocateDirect(initialCapacity));
+		return this.preferDirect ?
+				new DefaultDataBuffer(ByteBuffer.allocateDirect(initialCapacity)) :
+				new DefaultDataBuffer(ByteBuffer.allocate(initialCapacity));
 	}
 
 	@Override
diff --git a/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/NettyDataBufferAllocator.java b/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/NettyDataBufferAllocator.java
index 6eea0f3298..c77db97911 100644
--- a/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/NettyDataBufferAllocator.java
+++ b/spring-web-reactive/src/main/java/org/springframework/core/io/buffer/NettyDataBufferAllocator.java
@@ -60,18 +60,6 @@ public class NettyDataBufferAllocator implements DataBufferAllocator {
 		return new NettyDataBuffer(byteBuf);
 	}
 
-	@Override
-	public NettyDataBuffer allocateHeapBuffer(int initialCapacity) {
-		ByteBuf byteBuf = this.byteBufAllocator.heapBuffer(initialCapacity);
-		return new NettyDataBuffer(byteBuf);
-	}
-
-	@Override
-	public NettyDataBuffer allocateDirectBuffer(int initialCapacity) {
-		ByteBuf byteBuf = this.byteBufAllocator.directBuffer(initialCapacity);
-		return new NettyDataBuffer(byteBuf);
-	}
-
 	@Override
 	public NettyDataBuffer wrap(ByteBuffer byteBuffer) {
 		ByteBuf byteBuf = Unpooled.wrappedBuffer(byteBuffer);
diff --git a/spring-web-reactive/src/test/java/org/springframework/core/io/buffer/DataBufferTests.java b/spring-web-reactive/src/test/java/org/springframework/core/io/buffer/DataBufferTests.java
index 8c104a6069..da27d1194b 100644
--- a/spring-web-reactive/src/test/java/org/springframework/core/io/buffer/DataBufferTests.java
+++ b/spring-web-reactive/src/test/java/org/springframework/core/io/buffer/DataBufferTests.java
@@ -37,28 +37,23 @@ import static org.junit.Assert.assertEquals;
 @RunWith(Parameterized.class)
 public class DataBufferTests {
 
-	@Parameterized.Parameter(0)
+	@Parameterized.Parameter
 	public DataBufferAllocator allocator;
 
-	@Parameterized.Parameter(1)
-	public boolean direct;
-
-	@Parameterized.Parameters(name = "{0} - direct: {1}")
+	@Parameterized.Parameters(name = "{0}")
 	public static Object[][] buffers() {
 
 		return new Object[][]{
-				{new NettyDataBufferAllocator(new UnpooledByteBufAllocator(false)), true},
-				{new NettyDataBufferAllocator(new UnpooledByteBufAllocator(false)),
-						false},
-				{new NettyDataBufferAllocator(new PooledByteBufAllocator(false)), true},
-				{new NettyDataBufferAllocator(new PooledByteBufAllocator(false)), false},
+				{new NettyDataBufferAllocator(new UnpooledByteBufAllocator(true))},
+				{new NettyDataBufferAllocator(new UnpooledByteBufAllocator(false))},
+				{new NettyDataBufferAllocator(new PooledByteBufAllocator(true))},
+				{new NettyDataBufferAllocator(new PooledByteBufAllocator(false))},
 				{new DefaultDataBufferAllocator(), true},
 				{new DefaultDataBufferAllocator(), false}};
 	}
 
 	private DataBuffer createDataBuffer(int capacity) {
-		return direct ? allocator.allocateDirectBuffer(capacity) :
-				allocator.allocateHeapBuffer(capacity);
+		return allocator.allocateBuffer(capacity);
 	}
 
 	@Test
@@ -183,8 +178,7 @@ public class DataBufferTests {
 	}
 
 	private ByteBuffer createByteBuffer(int capacity) {
-		return direct ? ByteBuffer.allocateDirect(capacity) :
-				ByteBuffer.allocate(capacity);
+		return ByteBuffer.allocate(capacity);
 	}
 
 	@Test