[GROOVY-566] throwing exception within each() closure gets changed to InvokerInvocationException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0-beta-10
• Environment: mac os x 10.3.4
• Assignee: Jochen Theodorou
• Reporter: John Stump
• Created: 08/Jul/04 12:10
• Updated: 20/Feb/05 11:25
• Resolved: 20/Feb/05 11:25

Description

In an effort to create a construct to allow breaking from a closure-based iterator, I ran into this problem. Here is the code:

class MyException extends Exception {}

break_closure =

{ throw new MyException() }

breakable = {
try

{ it() }

catch(MyException e)

{ println "got my exception!" }

}

list = [1,2,-1,3]

breakable {
list.each

{ if(it == -1) break_closure() else println it }

}

This bombs with an InvokerInvocationException. I would have assumed that the exception I threw would get propogated upward, but instead it gets transformed into a different exception along the way.