[jira] [Created] (GROOVY-7757) Malformed class names for closures in inner classes

["Pascal Schumacher (JIRA)" <ji...@apache.org>]

Pascal Schumacher created GROOVY-7757:
-----------------------------------------

             Summary: Malformed class names for closures in inner classes
                 Key: GROOVY-7757
                 URL: https://issues.apache.org/jira/browse/GROOVY-7757
             Project: Groovy
          Issue Type: Sub-task
          Components: class generator
    Affects Versions: 1.8.4, 1.8.6
         Environment: OS X, Groovy 1.8.4, Java version 1.6.0_29
            Reporter: Sam Corbett
            Assignee: Jochen Theodorou
             Fix For: 2.4.0-beta-4


The class names generated for closures in inner classes break Class.getSimpleName()

For example, the closure passed to .each in this example has name Example$_Inner_closure1.class:

{code}
public class Example {
    private class Inner {
        def _ = [1, 2, 3].each {}
    }
}
{code}

Calling getSimpleName() on this class (e.g. as done by [Weld|http://seamframework.org/Weld] on startup) throws a java.lang.InternalError:
{code}
Caused by: java.lang.InternalError: Malformed class name
	at java.lang.Class.getSimpleName(Class.java:1133) [:1.6.0_29]
	at java.lang.Class.isAnonymousClass(Class.java:1188) [:1.6.0_29]
{code}

I believe the class name is expected to be in the format Example$Inner$closure1.

I've attached a test case to demonstrate the problem - extract the archive, cd to groovy-closure-classname-test and run mvn test.  The test uses Weld to inject a ClosureClassNameTest instance, but fails when Weld calls getSimpleName() on the class for the closure on line 10.




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