[jira] Created: (WICKET-1010) Contract of Session.attach() and Session.detach()

[Martin Funk (JIRA)]

Contract of Session.attach() and Session.detach()
-------------------------------------------------

                 Key: WICKET-1010
                 URL: https://issues.apache.org/jira/browse/WICKET-1010
             Project: Wicket
          Issue Type: Bug
            Reporter: Martin Funk


What is the contract of Session.attach() and Session.detach() ?

Especially, is it intended that after a call to attach() that there will
be at least one call to detach() before the request goes back to the client?
If that's the case, then there might be a bug in Session and I propose
the following patch on org.apache.wicket.Session 

Index: .
===================================================================
--- .    (revision 579354)
+++ .    (working copy)
@@ -305,6 +305,11 @@
     */
    public static void unset()
    {
+        Session session = (Session)current.get();
+        if (session != null)
+    {
+        session.detach();
+    }
        current.set(null);
    }



In my current project well fell over this looking at:

WicketFilter.getLastModified(final HttpServletRequest servletRequest)
where cachable resources lead over Session.findOrCreate to Session.set(Session) 
to Session.attach()

but the Session.unset() doesn't lead to a Session.detach()

Martin 

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