336220 - tmp directory is not set if you reload a webapp with jetty-maven-plugin

git-svn-id: svn+ssh://dev.eclipse.org/svnroot/rt/org.eclipse.jetty/jetty/trunk@3270 7e9141cc-0065-0410-87d8-b60c137991c4

VERSION.txt

@@ -1,4 +1,5 @@
 jetty-7.4.2-SNAPSHOT
+ + 336220 tmp directory is not set if you reload a webapp with jetty-maven-plugin
  + 338364 Fixed expires header for set cookies
  + 345729 binding for managing server and system classes globally
  + 345615 Enable SSL Session caching

jetty-webapp/src/main/java/org/eclipse/jetty/webapp/WebInfConfiguration.java

@@ -165,10 +165,13 @@ public class WebInfConfiguration extends AbstractConfiguration
         {
             IO.delete(context.getTempDirectory());
             context.setTempDirectory(null);
+            
+            //clear out the context attributes for the tmp dir only if we had to
+            //create the tmp dir
+            context.setAttribute(TEMPDIR_CONFIGURED, null);
+            context.setAttribute(context.TEMPDIR, null);
         }
-        
-        context.setAttribute(TEMPDIR_CONFIGURED, null);
-        context.setAttribute(context.TEMPDIR, null);
+
         
         //reset the base resource back to what it was before we did any unpacking of resources
         context.setBaseResource(_preUnpackBaseResource);