How to handle code coverage for catch blocks?

I am trying to improve code coverage of our enterprise application.
Is there an approved way to handle catch blocks?
How do i increase code coverage by running tests that lets the control go to catch block?

I hope my query is clear enough.

Thanks,
Giriraj.

Giriraj,
What tool are you using for code coverage? Different tools handle catch blocks differently.

I am using Clover.
Testing each and every catch block is exhaustive and seems improbable to me.
But there has to be way to handle most of the error conditions.

Thanks,
Giriraj.

One way is to have less catch blocks. Can a filter or superclass handle the common ones?

That would require refactoring which unfortunately isn't an option for me right now.
I simply have to improve the coverage for existing code base.
What else could you suggest?

Thanks a ton for replying...

Giriraj.