A DESCRIPTION OF THE REQUEST :
A natural extension of multicatch added in Java7 is the ability to switch() on Class instances. For example:

try
{
  future.get();
}
catch (InterruptedException | ExecutionException e)
{
  // Handle exception wrapped by ExecutionException
  switch (e.getCause().getClass())
  {
    case IOException.class:
    {
    }
    case IllegalArgumentException.class:
    {
    }
    // etc
  }
}

JUSTIFICATION :
Improved readability. The alternative is a long list of if/else "instanceof" statements.