[GROOVY-5385] StackOverflow Exception when calling super.method, which returns an instance of the corresponding class.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.10, 2.0-beta-2, 1.8.6
• Fix Version/s: 2.2.1
• Component/s: groovy-jdk
• Environment: Windows 7, IntelliJ IDEA
• Assignee: Jochen Theodorou
• Reporter: Stefan Leonhartsberger
• Created: 29/Mar/12 05:51
• Updated: 15/Oct/15 18:19
• Resolved: 20/Nov/13 08:09

Description

You get a StackOverflow Exception when running following code:

A.groovy

abstract class A {
    A attach(){
        System.out.println( "A does something else");
        return this;
    }
}

B.groovy

class B extends A {
    @Override
    B attach(){
        System.out.println("B does something else");
        return (B) super.attach();
    }
}

C.groovy

class C extends B {
    @Override
    C attach(){
        System.out.println("C does something else");
        return (C) super.attach();
    }
}

Test.groovy

C c = new C(); c.attach();

This bug only occurs when the depth of the class hierarchy exceeds two classes.
Moreover this bug seems depend on the method name! If you try attachMe() as method name the Stackoverflow Exception won't be raised.
The whole ErrorOutput can be found attached.

Error.output

C does something else
C does something else
C does something else
C does something else
Exception in thread "main" java.lang.StackOverflowError
	at groovy.lang.MetaClassImpl.getMetaProperty(MetaClassImpl.java:2441)
	at groovy.lang.MetaClassImpl.getMetaProperty(MetaClassImpl.java:2415)
	at groovy.lang.MetaClassImpl.getProperty(MetaClassImpl.java:1510)
	at groovy.lang.MetaClassImpl.getProperty(MetaClassImpl.java:3308)
	at org.codehaus.groovy.runtime.callsite.ClassMetaClassGetPropertySite.getProperty(ClassMetaClassGetPropertySite.java:48)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:227)
	at C.attach(C.groovy:20)
	at C.attach(C.groovy)
	at B.attach(B.groovy)
	at C.super$3$attach(C.groovy)
	at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1047)
	at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:128)
	at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:148)