scala debugger doesn't show variable in pattern match?

I didn't check if this is true for all pattern matches, but it is true that when I set a break point in a catch block as shown below

try {

   throw new Exception("test")

} catch {

   case e => {

      println(e)  // <--- break point here

   }

}

I don't see the variable e in the variables tools window as the program stops at the break point.    Is this a known problem?  I am running JDK1.6.0_24, IC-123.72 and scala plugin 0.6.371