Author: kkolinko
Date: Thu Feb  3 21:54:51 2011
New Revision: 1066996

URL: http://svn.apache.org/viewvc?rev=1066996&view=rev
Log:
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=50620
Exceptions calling session.endAccess should not prevent recycle() from 
completing normally

Added:
    
tomcat/tc5.5.x/trunk/connectors/util/java/org/apache/tomcat/util/ExceptionUtils.java
Modified:
    tomcat/tc5.5.x/trunk/STATUS.txt
    
tomcat/tc5.5.x/trunk/container/catalina/src/share/org/apache/catalina/connector/LocalStrings.properties
    
tomcat/tc5.5.x/trunk/container/catalina/src/share/org/apache/catalina/connector/Request.java
    tomcat/tc5.5.x/trunk/container/webapps/docs/changelog.xml

Modified: tomcat/tc5.5.x/trunk/STATUS.txt
URL: 
http://svn.apache.org/viewvc/tomcat/tc5.5.x/trunk/STATUS.txt?rev=1066996&r1=1066995&r2=1066996&view=diff
==============================================================================
--- tomcat/tc5.5.x/trunk/STATUS.txt (original)
+++ tomcat/tc5.5.x/trunk/STATUS.txt Thu Feb  3 21:54:51 2011
@@ -41,21 +41,6 @@ PATCHES PROPOSED TO BACKPORT:
   -O: jim
   -1:
 
-* Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=50620
-  Exceptions calling session.endAccess should not prevent recycle() from 
completing normally
-  1) copy o.a.tomcat.util.ExceptionUtils from trunk
-   svn copy ../../trunk/java/org/apache/tomcat/util/ExceptionUtils.java 
connectors/util/java/org/apache/tomcat/util/
-  2) patches:
-   http://svn.apache.org/viewvc?rev=1061442&view=rev
-   http://svn.apache.org/viewvc?rev=1061446&view=rev
-  (by markt)
-  +1: kkolinko, markt, rjung
-  -1:
-
-  (For convenience, here is patch that applies the above:
-   http://people.apache.org/~kkolinko/patches/2011-01-22_tc55_50620.patch
-  )
-
 * Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=50325
   Use JVM provided solutions to CVE-2009-3555 if available (i.e. RFC 5746
   support)

Added: 
tomcat/tc5.5.x/trunk/connectors/util/java/org/apache/tomcat/util/ExceptionUtils.java
URL: 
http://svn.apache.org/viewvc/tomcat/tc5.5.x/trunk/connectors/util/java/org/apache/tomcat/util/ExceptionUtils.java?rev=1066996&view=auto
==============================================================================
--- 
tomcat/tc5.5.x/trunk/connectors/util/java/org/apache/tomcat/util/ExceptionUtils.java
 (added)
+++ 
tomcat/tc5.5.x/trunk/connectors/util/java/org/apache/tomcat/util/ExceptionUtils.java
 Thu Feb  3 21:54:51 2011
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.tomcat.util;
+
+/**
+ * Utilities for handling Throwables and Exceptions.
+ */
+public class ExceptionUtils {
+    
+    /**
+     * Checks whether the supplied Throwable is one that needs to be 
+     * rethrown and swallows all others.
+     * @param t the Throwable to check
+     */
+    public static void handleThrowable(Throwable t) {
+        if (t instanceof ThreadDeath) {
+            throw (ThreadDeath) t;
+        }
+        if (t instanceof VirtualMachineError) {
+            throw (VirtualMachineError) t;
+        }
+        // All other instances of Throwable will be silently swallowed
+    }
+}

Modified: 
tomcat/tc5.5.x/trunk/container/catalina/src/share/org/apache/catalina/connector/LocalStrings.properties
URL: 
http://svn.apache.org/viewvc/tomcat/tc5.5.x/trunk/container/catalina/src/share/org/apache/catalina/connector/LocalStrings.properties?rev=1066996&r1=1066995&r2=1066996&view=diff
==============================================================================
--- 
tomcat/tc5.5.x/trunk/container/catalina/src/share/org/apache/catalina/connector/LocalStrings.properties
 (original)
+++ 
tomcat/tc5.5.x/trunk/container/catalina/src/share/org/apache/catalina/connector/LocalStrings.properties
 Thu Feb  3 21:54:51 2011
@@ -59,6 +59,7 @@ coyoteRequest.attributeEvent=Exception t
 coyoteRequest.parseParameters=Exception thrown whilst processing POSTed 
parameters
 coyoteRequest.postTooLarge=Parameters were not parsed because the size of the 
posted data was too big. Use the maxPostSize attribute of the connector to 
resolve this if the application should accept large POSTs.
 coyoteRequest.chunkedPostTooLarge=Parameters were not parsed because the size 
of the posted data was too big. Because this request was a chunked request, it 
could not be processed further. Use the maxPostSize attribute of the connector 
to resolve this if the application should accept large POSTs.
+coyoteRequest.sessionEndAccessFail=Exception triggered ending access to 
session while recycling request
 
 requestFacade.nullRequest=Null request object
 responseFacade.nullResponse=Null response object

Modified: 
tomcat/tc5.5.x/trunk/container/catalina/src/share/org/apache/catalina/connector/Request.java
URL: 
http://svn.apache.org/viewvc/tomcat/tc5.5.x/trunk/container/catalina/src/share/org/apache/catalina/connector/Request.java?rev=1066996&r1=1066995&r2=1066996&view=diff
==============================================================================
--- 
tomcat/tc5.5.x/trunk/container/catalina/src/share/org/apache/catalina/connector/Request.java
 (original)
+++ 
tomcat/tc5.5.x/trunk/container/catalina/src/share/org/apache/catalina/connector/Request.java
 Thu Feb  3 21:54:51 2011
@@ -45,6 +45,7 @@ import javax.servlet.http.Cookie;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpSession;
 
+import org.apache.tomcat.util.ExceptionUtils;
 import org.apache.tomcat.util.buf.B2CConverter;
 import org.apache.tomcat.util.buf.ByteChunk;
 import org.apache.tomcat.util.buf.MessageBytes;
@@ -55,6 +56,9 @@ import org.apache.tomcat.util.http.Param
 import org.apache.tomcat.util.http.ServerCookie;
 import org.apache.tomcat.util.http.mapper.MappingData;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
 import org.apache.coyote.ActionCode;
 
 import org.apache.catalina.Context;
@@ -86,6 +90,8 @@ public class Request
 
     private final static boolean ALLOW_EMPTY_QUERY_STRING;
 
+    private static final Log log = LogFactory.getLog(Request.class);
+
     static {
         // Ensure that classes are loaded for SM
         new StringCache.ByteEntry();
@@ -407,7 +413,12 @@ public class Request
         cookies = null;
 
         if (session != null) {
-            session.endAccess();
+            try {
+                session.endAccess();
+            } catch (Throwable t) {
+                ExceptionUtils.handleThrowable(t);
+                log.warn(sm.getString("coyoteRequest.sessionEndAccessFail"), 
t);
+            }
         }
         session = null;
         requestedSessionCookie = false;

Modified: tomcat/tc5.5.x/trunk/container/webapps/docs/changelog.xml
URL: 
http://svn.apache.org/viewvc/tomcat/tc5.5.x/trunk/container/webapps/docs/changelog.xml?rev=1066996&r1=1066995&r2=1066996&view=diff
==============================================================================
--- tomcat/tc5.5.x/trunk/container/webapps/docs/changelog.xml (original)
+++ tomcat/tc5.5.x/trunk/container/webapps/docs/changelog.xml Thu Feb  3 
21:54:51 2011
@@ -71,6 +71,11 @@
         Improve HTTP specification compliance in support of
         <code>Accept-Language</code> header. (kkolinko)
       </fix>
+      <fix>
+        <bug>50620</bug>: Stop exceptions that occur during
+        <code>Session.endAccess()</code> from preventing the normal completion
+        of <code>Request.recycle()</code>. (markt/kkolinko)
+      </fix>
     </changelog>
   </subsection>
 </section>



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