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diff --git a/simple/simple-common/src/main/java/org/simpleframework/common/buffer/ArrayAllocator.java b/simple/simple-common/src/main/java/org/simpleframework/common/buffer/ArrayAllocator.java
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+++ b/simple/simple-common/src/main/java/org/simpleframework/common/buffer/ArrayAllocator.java
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+/*
+ * ArrayAllocator.java February 2001
+ *
+ * Copyright (C) 2001, Niall Gallagher <niallg@users.sf.net>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 
+ * implied. See the License for the specific language governing 
+ * permissions and limitations under the License.
+ */
+
+package org.simpleframework.common.buffer;
+
+import java.io.IOException;
+
+/**
+ * The <code>ArrayAllocator</code> object is used to provide a means 
+ * to allocate buffers using a single byte array. This essentially uses 
+ * the heap to allocate all buffers. As a result the performance of the
+ * resulting buffers is good, however for very large buffers this will
+ * use quote allot of the usable heap space. For very large buffers a
+ * mapped region of shared memory of a file should be considered.
+ *
+ * @author Niall Gallagher
+ */ 
+public class ArrayAllocator implements Allocator {
+
+   /**
+    * This represents the largest portion of memory that is allowed.
+    */         
+   private int limit;
+
+   /**
+    * This represents the default capacity of all allocated buffers.
+    */ 
+   private int size;
+
+   /**
+    * Constructor for the <code>ArrayAllocator</code> object. This is
+    * used to instantiate the allocator with a default buffer size of
+    * half a kilobyte. This ensures that it can be used for general 
+    * purpose byte storage and for minor I/O tasks.
+    */ 
+   public ArrayAllocator() {
+      this(512);
+   }
+
+   /**
+    * Constructor for the <code>ArrayAllocator</code> object. This is
+    * used to instantiate the allocator with a specified buffer size.
+    * This is typically used when a very specific buffer capacity is
+    * required, for example a request body with a known length.
+    *
+    * @param size the initial capacity of the allocated buffers
+    */ 
+   public ArrayAllocator(int size) {
+      this(size, 1048576);
+   }
+
+   /**
+    * Constructor for the <code>ArrayAllocator</code> object. This is
+    * used to instantiate the allocator with a specified buffer size.
+    * This is typically used when a very specific buffer capacity is
+    * required, for example a request body with a known length.
+    *
+    * @param size the initial capacity of the allocated buffers
+    * @param limit this is the maximum buffer size created by this
+    */
+   public ArrayAllocator(int size, int limit) {      
+      this.limit = Math.max(size, limit);
+      this.size = size;
+   }
+
+   /**
+    * This method is used to allocate a default buffer. This will 
+    * allocate a buffer of predetermined size, allowing it to grow 
+    * to an upper limit to accommodate extra data. If the buffer
+    * requested is larger than the limit an exception is thrown.
+    *
+    * @return this returns an allocated buffer with a default size
+    */      
+   public Buffer allocate() throws IOException {
+      return allocate(size);
+   }
+
+   /**
+    * This method is used to allocate a default buffer. This will 
+    * allocate a buffer of predetermined size, allowing it to grow 
+    * to an upper limit to accommodate extra data. If the buffer
+    * requested is larger than the limit an exception is thrown.
+    *
+    * @param size the initial capacity of the allocated buffer
+    *
+    * @return this returns an allocated buffer with a default size
+    */   
+   public Buffer allocate(long size) throws IOException {
+      int required = (int)size;
+      
+      if(size > limit) {
+         throw new BufferException("Specified size %s beyond limit", size);
+      }
+      return new ArrayBuffer(required, limit);
+   }
+}