How to handle the JNI Exception

[0xLJCCC6BDDCz/0xLJD1D0BEBFD4BAB7FECEF1C6F7D1D0BEBFCAD2z/0xLJC1AACFEBz]

We using JNI in servlet.
The JNI throws a exception, and the servlet handle the exception.
But now, when we throws the Exception which define in JDK, all of thing ok.
When we throws the exception which we define, the tomcat think there is no
method to handle that exception

etc: MyException extend Exception.

We think there should be some configure is not ok.
Can any body give us advice about tomcat configuration which related to
exception handle.

                    Thanks


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