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From "John" <>
Subject Re: Using Cayenne withTomcat gives ClassCastException
Date Thu, 02 Nov 2006 09:43:10 GMT
Hello Cris,
No you misunderstood me.
I develop with Eclipse and I have or (HAD) a Cayenne.jar under my 
"ThierdpartyJars". And another Cayenne.jar for "./tomcat/shared/lib/" and 
when i start the application using Tomcat and Tomcat uses the shared jars.

however, NOW: i use the same Jars under "./tomcat/shared/lib/" and I still 
have the same problem.
as soon as I change any part from Home.jave I have to restart TomCat 

Thanks for your answers in advance. I still need help :)


----- Original Message ----- 
From: "Cris Daniluk" <>
To: <>
Sent: Thursday, November 02, 2006 1:18 AM
Subject: Re: Using Cayenne withTomcat gives ClassCastException

>> > This seems like some kind of classloader issue. John need to make
>> > sure that cayenne.jar is loaded by the same classloader as the app
>> > code. In most simple case this means putting it in the war. But there
>> > are more weird cases such as this one:
>> >
>> Hi thanks for answering,
>> You are right, i use diffrent Cayenne.jarS.
> You mean, you have more than one cayenne.jar on the classpath? That
> would be your problem... because Tomcat uses nested classloaders, you
> can run into problems like this:
> java.lang.ClassCastException
>     de.model.MenuObject cannot be cast to de.model.MenuObject
> .. very easily.
> Cris

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