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From "Rick Curtis (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (OPENJPA-640) ClassNotFoundException for InstrumentationFactory upon startup
Date Fri, 16 Jul 2010 18:27:49 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-640?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rick Curtis reassigned OPENJPA-640:
-----------------------------------

    Assignee: Rick Curtis

> ClassNotFoundException for InstrumentationFactory upon startup
> --------------------------------------------------------------
>
>                 Key: OPENJPA-640
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-640
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 1.0.2, 1.1.0, 1.2.0
>         Environment: JDK6, 1.2.0-trunk
>            Reporter: Mingfai Ma
>            Assignee: Rick Curtis
>            Priority: Minor
>
> This problem exists for a long time and it affects more than other people as well. Refer
to an old thread in the mail list.
> http://mail-archives.apache.org/mod_mbox/openjpa-users/200801.mbox/%3C478963D8.209@gmail.com%3E
> java.lang.ClassNotFoundException: org.apache.openjpa.enhance.InstrumentationFactory
> 	at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> 	at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:280)
> 	at sun.instrument.InstrumentationImpl.loadClassAndCallAgentmain(InstrumentationImpl.java:348)
> Previously, I had an old trick to patch the org.apache.openjpa.enhance.InstrumentationFactory.jar
to include the InstrumentationFactory but it doesn't work now. 
> Remarks: the problem is merely about displaying a piece of stacktrace but there is no
actual impact to the OpenJPA function. (that's why I marked the priority as minor.)

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