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From "Shapira, Yoav" <>
Subject RE: [REPOST]Tomcat with security manager + NoClassDefFoundError
Date Mon, 23 Jun 2003 18:56:55 GMT

The curious part about the stack trace is the doPrivileged throwing the exception.  Are you
using JAAS or a custom realm to do your authentication?  If so, are you sure this realm is
properly configured?

Yoav Shapira
Millennium ChemInformatics

>-----Original Message-----
>From: Jason Bainbridge []
>Sent: Monday, June 23, 2003 2:53 PM
>To: Tomcat Users List
>Subject: Re: [REPOST]Tomcat with security manager + NoClassDefFoundError
>What other struts.jar files have you got laying around? Have you maybe got
>in common/lib? I'm not sure why setting a grant like that would make a
>NoClassDefFoundError go away, maybe it tricks the classloader into looking
>a specific class somehow.
>Either way I don't think you have fixed the problem it just appears you
>Jason Bainbridge
>On Tue, 24 Jun 2003 02:46, Phillip Qin wrote:
>> Typo, it is WEB-INF/lib.
>> When there is no grant entry for this jar, tomcat throws
>> "NoClassDefFoundError".
>> -----Original Message-----
>> From: Jason Bainbridge []
>> Sent: June 23, 2003 2:44 PM
>> To: Tomcat Users List
>> Subject: Re: [REPOST]Tomcat with security manager + NoClassDefFoundError
>> On Tue, 24 Jun 2003 02:41, Phillip Qin wrote:
>> > I solved this problem by including a grant entry
>> >
>> > grant codeBase "file:${catalina.home}/webapps/myapp/WEB-INF/struts.jar"
>> >   permission;
>> > };
>> Why isn't it in WEB-INF/lib ? That is probably why you had to add that
>> grant
>> entry as it isn't the usual place to store jar files.
>> Regards,
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