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Why is javax.servlet.error.exception_type sometimes empty when an exception is thrown?

Rob Dennett
Ranch Hand

Joined: Dec 07, 2010
Posts: 79
I am debugging a problem that I think may have been thrown by a JSP. Our error handler retrieves the throwable from javax.servlet.error.exception_type, but sometimes, like in this case, it's null. What causes this?

Thanks,
Rob
 
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subject: Why is javax.servlet.error.exception_type sometimes empty when an exception is thrown?