groovy

Problem with using .class in an interface def in Groovy 1.6

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Major 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
  • Component/s: None
  • Labels:
    None
  • Number of attachments :
    0

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?

Activity

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blackdrag blackdrag made changes -
Field Original Value New Value
Assignee Roshan Dawrani [ roshandawrani ]
blackdrag blackdrag made changes -
Fix Version/s 1.6.1 [ 14852 ]
Priority Critical [ 2 ] Major [ 3 ]
Fix Version/s 1.7-beta-1 [ 14014 ]
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Chanwit Kaewkasi added a comment -

I've tried to groovyc the following B.groovy (same as the testcase):

interface B {
   Class type = B.class
}

The result are 2 classes, B.class and another B$1.class, which seems to be an inner class of B caused by the above declaration.

Show
Chanwit Kaewkasi added a comment - I've tried to groovyc the following B.groovy (same as the testcase): interface B { Class type = B.class } The result are 2 classes, B.class and another B$1.class, which seems to be an inner class of B caused by the above declaration.
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Permalink
Roshan Dawrani added a comment -

Class expressions used in interface(ClassNode) were being stored in its helper inner class (InnerClassNode) as synthetic fields but were being accessed as synthetic getters. Resolved by accessing them as fields instead.

Fixed on 1.6.1 and trunk.

Show
Roshan Dawrani added a comment - Class expressions used in interface(ClassNode) were being stored in its helper inner class (InnerClassNode) as synthetic fields but were being accessed as synthetic getters. Resolved by accessing them as fields instead. Fixed on 1.6.1 and trunk.
Roshan Dawrani made changes -
Resolution Fixed [ 1 ]
Status Open [ 1 ] Resolved [ 5 ]
Paul King made changes -
Status Resolved [ 5 ] Closed [ 6 ]

People

  • Assignee:
    Roshan Dawrani
    Reporter:
    Jason Dillon
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Dates

  • Created:
    Updated:
    Resolved: