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From "Shawn Jiang (JIRA)" <>
Subject [jira] Assigned: (GERONIMO-4777) WADI clustering does not work with Jetty7
Date Thu, 03 Sep 2009 04:50:33 GMT


Shawn Jiang reassigned GERONIMO-4777:

    Assignee: Shawn Jiang

> WADI clustering does not work with Jetty7
> -----------------------------------------
>                 Key: GERONIMO-4777
>                 URL:
>             Project: Geronimo
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: Jetty
>    Affects Versions: 2.2
>         Environment: Tested on OS X 10.5 and Ubuntu 8.10, both running 64-bit Java 1.6
>            Reporter: Trygve Hardersen
>            Assignee: Shawn Jiang
>         Attachments: jgs.tar.gz, WADIJettyClusteringBuilder.patch
> I've been trying to get WADI clustering to work with Jetty7, but I've found numerous
> The first problem is that a Geronimo plugin that uses WADI clustering and Jetty7 cannot
be built. The WADIJettyClusteringBuilder is unable to locate the web module in the deployment,
so the build fails with the following error:
> org.apache.maven.lifecycle.LifecycleExecutionException: could not package plugin
> Caused by: org.apache.maven.plugin.MojoExecutionException: could not package plugin
> Caused by: org.apache.geronimo.common.DeploymentException: Could not locate web module
gbean in web app configuration
> I was able to resolve this by copying the code that creates the webModuleQuery from the
equivalent Jetty6 module into the Jetty7 module, see WADIJettyClusteringBuilder.patch. With
this the build succeeds, and I'm able to deploy the plugin. I don't know if it breaks anything
else, but I've not seen issues with it.
> AFAICT normal session replication works fine with this. However it does not work when
combined with form based security for the web application. The first problem is that$SessionAuthentication
and are not serializable,
so they can not be sent across the network. I made these classes serializable, and then login
works as long as there is only one member in the cluster (well, not really a cluster...).
When there are multiple members in the cluster, login fails because there is no valid constructor
I tried to add a default constructor, but it's an inner class, and it seems to me like theAuthenticator
and UserIdentity properties are required for it to work so I did not try to extract the class.
> As I said login works as long as there's only one member in the cluster, but logout does
not. Calling javax.servlet.http.HttpSession#invalidate() throws an exception, because the
curent session can not be found:
> java.lang.AssertionError: Session [org.apache.geronimo.clustering.wadi.WADISessionAdaptor@7f488ddb]
is undefined
> org.codehaus.wadi.replication.manager.ReplicationKeyNotFoundException: Key [ccge2q2w9dz2]
does not exist
> I am attaching the patch for the WADIJettyClusteringBuilder (WADIJettyClusteringBuilder.patch)
and a sample project JGS (jgs.tar.gz) that demonstrates the security problems I'm experiencing.
The web-formlogin-clustering-plugin of the JGS project uses form based security and WADI clustering.
The /customer page is protected, and to access it one must login with any username and password,
as long as they are the same. Use test/test for instance. To test session invalidation, manually
enter the URL /logout.
> It would be very helpful if someone can comment on the usability of WADI clustering in
combination with Jetty7. To me it seems like it has not been tested much, and I think going
back to Jetty6 again is the best option for us, unless the issues described above can be easily
> Thanks for your help!

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