debug-groovy-bug

Steps to reproduce:

1. Set a breakpoint on the first line of foo.bar.JMain#main
2. Debug foo.bar.JMain (⌃⇧D)
3. Step into foo.bar.JMain#tryStuff
4. Step into constructor.newInstance() and method.invoke(o) inside #tryStuff

Last step works for both both foo.bar.JC and foo.bar.SGC, while fails for foo.bar.GC. The same behaviour persists when running foo.bar.GMain and stepping into methods inside its #main.

This issue is reproducible with plain raw jdb:

$ ./gradlew clean classes
$ jdb -classpath build/classes/groovy/main:<path to groovy-2.5.6.jar>

Inside jdb prompt:

> sourcepath src/main/groovy
> exclude java.*,sun.*,com.sun.*,groovy.*,org.codehaus.groovy.*,org.apache.groovy.*
> stop in foo.bar.GMain.main
> run foo.bar.GMain

Then step until the end and observe the behaviour.