"Unreachable catch block" when java code calls groovy code

[dr_j]

I have this annoying situation in my IDE (STS 2.6.0.RELEASE); we have a java class that invokes methods on a groovy class. My IDE indicates, on the catch block, that the catch is unreachable.

I've managed to recreate it easily enough with the following:

Groovy code:

import javax.mail.MessagingException

public interface CanThrowException {
  void thisCanThrowException() throws MessagingException
}

Java code:

import javax.mail.MessagingException;

class ShouldCatchException {
  private CanThrowException thing;
  
  public void doIt() {
    try {
      thing.thisCanThrowException();
    } catch( MessagingException e ) {
      System.out.println("Did we catch it?");
    }
  }
}

The interesting thing is that if the catch block is removed, the complain then becomes that the MessagingException isn't caught, so a catch block should be added. 'javap' shows the interface was, indeed, constructed saying that the exception is thrown.

Via the command line, the build succeeds just fine (no surprise), so it's definitely more of an annoyance than anything else.

Something is not quite right ...

Suggestions? Bug (where do I file it?)?

Thanks!

john

[Andrew Eisenberg]

Thanks for letting us know about this problem with a simple example. I was able to reproduce. I created http://jira.codehaus.org/browse/GRECLIPSE-1047 to track this issue.