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To: commons-dev@jakarta.apache.org
Subject: DO NOT REPLY [Bug 37034]  New:  -
    Loading of resources causes webapp to fail redeploy under Tomcat 5.5.x
Message-Id: <20051012000628.81A96515@ajax.apache.org>
Date: Wed, 12 Oct 2005 02:06:28 +0200 (CEST)

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http://issues.apache.org/bugzilla/show_bug.cgi?id=37034

           Summary: Loading of resources causes webapp to fail redeploy
                    under Tomcat 5.5.x
           Product: Commons
           Version: 1.5 Final
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: major
          Priority: P2
         Component: Digester
        AssignedTo: commons-dev@jakarta.apache.org
        ReportedBy: rich@apache.org


This was originally filed against Beehive as
http://issues.apache.org/jira/browse/BEEHIVE-960 , but I've narrowed it down to
either a Digester issue or a Tomcat issue.  Tomcat seems to suggest that this is
an issue related to getting resources out of a JAR:
    - http://issues.apache.org/bugzilla/show_bug.cgi?id=33830
    - http://jakarta.apache.org/tomcat/faq/windows.html#lock

Specifically, Tomcat turned off the behavior that prevents locking of JARs under
Windows.  They did this to improve startup time.  I don't necessarily agree with
this choice as a default, but if you believe their bug comments and FAQ, this
actually just exposes Windows-specific bugs in the way resources are read out of
JARs.

To reproduce this:
    - Run 'ant build war' in the attached directory.
    - Copy strutsRedeploy.war into $CATALINA_HOME/webapps.
    - Verify that there is a fully-extracted webapp under
$CATALINA_HOME/webapps/strutsRedeploy.
    - Copy strutsRedeploy.war (again) into $CATALINA_HOME/webapps.

Now look in $CATALINA_HOME/webapps/strutsRedeploy -- it failed to redeploy, and
the only file left in there is WEB-INF/lib/struts.jar.

I'm attaching a Digester patch that fixes the issue.

Note: the fix for this issue belongs in one of three places:
    - Tomcat (which has rejected working around it since it impacts startup time)
    - Digester
    - XML support in the JDK

Hopefully you'll choose Digester.  :)

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