Index: src/protocol/http/org/apache/jmeter/protocol/http/sampler/HTTPSamplerBase.java
===================================================================
--- src/protocol/http/org/apache/jmeter/protocol/http/sampler/HTTPSamplerBase.java	(revision 1177932)
+++ src/protocol/http/org/apache/jmeter/protocol/http/sampler/HTTPSamplerBase.java	(working copy)
@@ -1548,7 +1548,7 @@
      */
     public byte[] readResponse(SampleResult sampleResult, InputStream in, int length) throws IOException {
 
-        byte[] readBuffer = getThreadContext().getReadBuffer();
+        byte[] readBuffer = new byte[8192];
         int bufferSize=32;// Enough for MD5
 
         MessageDigest md=null;
Index: src/core/org/apache/jmeter/threads/JMeterContext.java
===================================================================
--- src/core/org/apache/jmeter/threads/JMeterContext.java	(revision 1177932)
+++ src/core/org/apache/jmeter/threads/JMeterContext.java	(working copy)
@@ -47,8 +47,6 @@
 
     private int threadNum;
 
-    private byte[] readBuffer = null;
-
     private boolean isReinitSubControllers = false;
 
     JMeterContext() {
@@ -66,7 +64,6 @@
         previousSampler = null;
         samplingStarted = false;
         threadNum = 0;
-        readBuffer = null;
         thread = null;
         isReinitSubControllers = false;
     }
@@ -80,18 +77,6 @@
         return variables;
     }
 
-    /**
-     * A temporary buffer that can be shared between samplers in a thread.
-     * 
-     * @return the shared read buffer
-     */
-    public byte[] getReadBuffer() {
-        if (readBuffer == null) {
-            readBuffer = new byte[8192];
-        }
-        return readBuffer;
-    }
-
     public void setVariables(JMeterVariables vars) {
         this.variables = vars;
     }