>[EMAIL PROTECTED] wrote:
>
>> I am trying to run T4m4 with my webapp and I am receiving a
>>
>> java.lang.SecurityException : sealing exception
>>
>> This is because my servlet is trying to instantiate a singleton object
>> in the webapp that reads its config info from a file on the classpath
>> using a mildy modified version of the XML mapper from Tomcat (just
>> renamed the package so I can use it).
>>
>> I was under the assumption that the security stuff didn't run if you
>> just ran bin/startup.sh. Is that still the case?
>>
>
> "Sealing violation" problems just started showing up in m4. The only
> thing I can think of that's different is I compiled with optimization
> on, but it's still under investigation. As I understand it, a sealing
> violation means you're trying to load a class in a particular package
> from a different JAR file than other classes of that same package were
> found.
>
> One issue you might run into with the "modified XML mapper" is that, if
> the mapper classes themselves are on the system class path, they won't
> be able to see classes in WEB-INF/classes or WEB-INF/lib/*.jar -- class
> loader delegation goes up the hierarchy, but not down. You might need
> to ensure that all your classes are under WEB-INF (or all your classes
> are on the classpath) to make this work.
>
> I ran into exactly this situation with the Digester module in Struts
> <http://jakarta.apache.org/struts>, which is pretty similar in
> principle to XmlMapper, and it is one of the reasons for the
> restriction that struts.jar *must* be in your WEB-INF/lib directory.
Thanks, Craig. All of my code is in either WEB-INF/classes or WEB-
INF/lib. One thing I have noted to do in ALL of my java development is to
NEVER specify a classpath in my environment. I always make the program
invoke using its needed classpath. Less ambiguity that way ;-)
I'll keep looking ;-)
Scott Sanders
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