Try/Catch Errors

I'm not sure how active the list is, but I'll give it a shot.  I'm 
having trouble adding bytecode to methods wtih try/catch blocks.  I've 
been able to modify them correctly without try/catch blocks, but as soon 
as I uncomment them, I get the following error:

Exception in thread "main" java.lang.VerifyError: (class: Test, method: 
main signature: ([Ljava/lang/String;)V) Inconsistent stack height 0 != 2

I am calling setMaxStack() on the MethodGen instance.  I assume there is 
some simple trick that i'm missing?

Thanks in advance for any help.

--vince