329602 only clear ServletContext attributes on doStop

git-svn-id: svn+ssh://dev.eclipse.org/svnroot/rt/org.eclipse.jetty/jetty/trunk@2478 7e9141cc-0065-0410-87d8-b60c137991c4

VERSION.txt

@@ -12,6 +12,7 @@ jetty-7.2.1-SNAPSHOT
  + 328988 Idle saving of session values
  + 329180 Spin check for Selector to stop
  + 329410 Enforce XmlConfiguration properties as Map<String,String>
+ + 329602 only clear ServletContext attributes on doStop
  + 329642 Concurrent modification exception in Deployment Manager
  + 329643 Improved deployment of resource collections
  + JETTY-748 Prevent race close of socket by old acceptor threads

jetty-server/src/main/java/org/eclipse/jetty/server/handler/ContextHandler.java

@@ -554,7 +554,6 @@ public class ContextHandler extends ScopedHandler implements Attributes, Server.
         Thread current_thread=null;
         Context old_context=null;
 
-        _contextAttributes.clearAttributes();
         try
         {
             // Set the classloader