[GROOVY-3383] Problem with using .class in an interface def in Groovy 1.6

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6-beta-2, 1.6-rc-1, 1.6-rc-2, 1.6-rc-3, 1.6
• Fix Version/s: 1.6.1, 1.7-beta-1
• Assignee: Roshan Dawrani
• Reporter: Jason Dillon
• Created: 27/Feb/09 00:51
• Updated: 07/Apr/09 23:33
• Resolved: 27/Feb/09 21:45

Description

Looks like there is a problem using <CLASSNAME>.class to reference a class instance for CLASSNAME in an interface definition.

class A {
   static Class type = A.class
}

println A.type

interface B {
   Class type = B.class
}

println B.type

This prints out:

class A

And then pukes up:

java.lang.NoSuchMethodError: B$1.$get$$class$B()Ljava/lang/Class;
	at B.<clinit>(ConsoleScript13)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:164)
	at ConsoleScript13.class$(ConsoleScript13)
	at ConsoleScript13.$get$$class$B(ConsoleScript13)
	at ConsoleScript13.run(ConsoleScript13:11)
	at groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:256)
	at groovy.lang.GroovyShell.run(GroovyShell.java:471)
	at groovy.lang.GroovyShell.run(GroovyShell.java:451)
	at groovy.lang.GroovyShell.run(GroovyShell.java:160)
	at groovy.lang.GroovyShell$run$0.call(Unknown Source)
	at groovy.ui.Console$_runScriptImpl_closure13.doCall(Console.groovy:732)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)
	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:272)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:892)
	at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:66)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:150)
	at groovy.ui.Console$_runScriptImpl_closure13.doCall(Console.groovy)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:86)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)
	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:272)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:892)
	at groovy.lang.Closure.call(Closure.java:279)
	at groovy.lang.Closure.call(Closure.java:274)
	at groovy.lang.Closure.run(Closure.java:355)
	at java.lang.Thread.run(Thread.java:613)

I ran the same code in Groovy 1.5.7, and it prints:

class A
interface B

I've tried 1.6.0, 1.6-RC-2 and 1.6-beta-2, all behave the same as 1.6.0. Anyone know what broke and why?