Hi,
Yes of course you can, keep in mind that you can wrap any piece of code that could throw an exception with a "try...catch" block ... even if that was inside "catch" block.
Catch block could contain a piece of code that throw an exception so you should catch it to prevent a crash :)
here is a thread talking about this :
exception-handling-try-catch-inside-catch[
^]
Best Reagards.
EL GAABEB.