[Building Sakai] Strange Samigo behaviour

[DAVID ROLDAN MARTINEZ]

Hi Earle,

At the beginning I thought two possible causes:

a)      The one you are suggesting, that is, a deployment issue because it seems not to have a jar where it should. But this is not the case: Sakai kernel util jar is present and not duplicate. I also have checked, file by file, the jar present in our production instance comparing them with our pre-production instance (where the error is not happening): they are the same.

b)      A mismatching between the  JVM used on compile time and the one used on run time (in our case, machines are different). But, once again, this is not the case: they have the same JVM version.

The problem is that it's random. If I reboot the server, sometimes is fixed, sometimes not.

Thanks very much for your help. Any other clue/suggestions? I will appreciate magic receipts and also a stone to hide me. :D

Cheers,
                David

De: Earle Nietzel [mailto:earle.nietzel at gmail.com]
Enviado el: lunes, 12 de septiembre de 2011 17:57
Para: DAVID ROLDAN MARTINEZ
CC: sakai-dev at collab.sakaiproject.org
Asunto: Re: [Building Sakai] Strange Samigo behaviour

Hi David,

It sounds like something didn't get deployed correctly.

You should check and make sure all the libs are in the correct places.

i.e. shared, components and of course the webapp.

Exception java.lang.NoClassDefFoundError occurs because a library that was available during compile time was not found at runtime.

Earle
On Mon, Sep 12, 2011 at 4:02 AM, DAVID ROLDAN MARTINEZ <darolmar at upvnet.upv.es<mailto:darolmar at upvnet.upv.es>> wrote:

        Hi all,

        We have a very strange behaviour on Samigo on our 2.8.0 production environment. Curiouslly, it's described at https://jira.sakaiproject.org/browse/SAM-1048 and what happens is that Samigo is launching the following exception when you enter in the main page:

org.sakaiproject.portal.api.PortalHandlerException: org.sakaiproject.tool.api.ToolException: La ejecución del Servlet lanzó una excepción
   at org.sakaiproject.portal.charon.SkinnableCharonPortal.doGet(SkinnableCharonPortal.java:863)
caused by: org.sakaiproject.tool.api.ToolException: La ejecución del Servlet lanzó una excepción
   at org.sakaiproject.portal.charon.SkinnableCharonPortal.forwardTool(SkinnableCharonPortal.java:1437)
caused by: javax.servlet.ServletException: La ejecución del Servlet lanzó una excepción
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
caused by: java.lang.NoClassDefFoundError: org/sakaiproject/util/Web
   at org.sakaiproject.jsf.util.SamigoJsfTool.dispatch(SamigoJsfTool.java:182)
   at org.sakaiproject.jsf.util.JsfTool.doGet(JsfTool.java:241)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)

         However, org.sakaiproject.util.Web, which is in sakai-kernel-util, is present at samigo-app/WEB-INF/lib. Thus, the ClassLoader must find the class because it is present.

         Any clue?

         Thank you very much in advance.

         Cheers,
            David
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