diff --git a/buffer/src/main/java/io/netty/buffer/AbstractByteBufAllocator.java b/buffer/src/main/java/io/netty/buffer/AbstractByteBufAllocator.java
index e8e0ee3b17..60be062d0e 100644
--- a/buffer/src/main/java/io/netty/buffer/AbstractByteBufAllocator.java
+++ b/buffer/src/main/java/io/netty/buffer/AbstractByteBufAllocator.java
@@ -22,6 +22,8 @@ import io.netty.util.internal.PlatformDependent;
  * Skeltal {@link ByteBufAllocator} implementation to extend.
  */
 public abstract class AbstractByteBufAllocator implements ByteBufAllocator {
+    private static final int DEFAULT_INITIAL_CAPACITY = 256;
+    private static final int DEFAULT_MAX_COMPONENTS = 16;
 
     private final boolean directByDefault;
     private final ByteBuf emptyBuf;
@@ -94,7 +96,7 @@ public abstract class AbstractByteBufAllocator implements ByteBufAllocator {
 
     @Override
     public ByteBuf heapBuffer() {
-        return heapBuffer(256, Integer.MAX_VALUE);
+        return heapBuffer(DEFAULT_INITIAL_CAPACITY, Integer.MAX_VALUE);
     }
 
     @Override
@@ -113,7 +115,7 @@ public abstract class AbstractByteBufAllocator implements ByteBufAllocator {
 
     @Override
     public ByteBuf directBuffer() {
-        return directBuffer(256, Integer.MAX_VALUE);
+        return directBuffer(DEFAULT_INITIAL_CAPACITY, Integer.MAX_VALUE);
     }
 
     @Override
@@ -148,7 +150,7 @@ public abstract class AbstractByteBufAllocator implements ByteBufAllocator {
 
     @Override
     public CompositeByteBuf compositeHeapBuffer() {
-        return compositeHeapBuffer(16);
+        return compositeHeapBuffer(DEFAULT_MAX_COMPONENTS);
     }
 
     @Override
@@ -158,7 +160,7 @@ public abstract class AbstractByteBufAllocator implements ByteBufAllocator {
 
     @Override
     public CompositeByteBuf compositeDirectBuffer() {
-        return compositeDirectBuffer(16);
+        return compositeDirectBuffer(DEFAULT_MAX_COMPONENTS);
     }
 
     @Override