From bb2c669c81f14102afd13eddaada62306170552f Mon Sep 17 00:00:00 2001
From: markt <markt@13f79535-47bb-0310-9956-ffa450edef68>
Date: Mon, 3 Nov 2008 18:53:37 +0000
Subject: [PATCH] As per Remy's review comment, make sure we continue to reset
 the writer/stream flags before forwarding to a custom error page.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@710125 13f79535-47bb-0310-9956-ffa450edef68
---
 java/org/apache/catalina/connector/Response.java   | 24 +++++++++++++++++++++-
 .../apache/catalina/core/StandardHostValve.java    |  2 +-
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/java/org/apache/catalina/connector/Response.java b/java/org/apache/catalina/connector/Response.java
index fa4213529..e4cc50c78 100644
--- a/java/org/apache/catalina/connector/Response.java
+++ b/java/org/apache/catalina/connector/Response.java
@@ -670,16 +670,38 @@ public class Response
      *  been committed
      */
     public void resetBuffer() {
+        resetBuffer(false);
+    }
+
+    
+    /**
+     * Reset the data buffer and the using Writer/Stream flags but not any
+     * status or header information.
+     *
+     * @param resetWriterStreamFlags <code>true</code> if the internal
+     *        <code>usingWriter</code>, <code>usingOutputStream</code>,
+     *        <code>isCharacterEncodingSet</code> flags should also be reset
+     * 
+     * @exception IllegalStateException if the response has already
+     *  been committed
+     */
+    public void resetBuffer(boolean resetWriterStreamFlags) {
 
         if (isCommitted())
             throw new IllegalStateException
                 (sm.getString("coyoteResponse.resetBuffer.ise"));
 
         outputBuffer.reset();
+        
+        if(resetWriterStreamFlags) {
+            usingOutputStream = false;
+            usingWriter = false;
+            isCharacterEncodingSet = false;
+        }
 
     }
 
-
+    
     /**
      * Set the buffer size to be used for this Response.
      *
diff --git a/java/org/apache/catalina/core/StandardHostValve.java b/java/org/apache/catalina/core/StandardHostValve.java
index 79b920c19..6229511b8 100644
--- a/java/org/apache/catalina/core/StandardHostValve.java
+++ b/java/org/apache/catalina/core/StandardHostValve.java
@@ -406,7 +406,7 @@ final class StandardHostValve
 
         try {
             // Reset the response (keeping the real error code and message)
-            response.resetBuffer();
+            response.resetBuffer(true);
 
             // Forward control to the specified location
             ServletContext servletContext =
-- 
2.11.0