[GROOVY-6996] Anonymous class field initialized with an enclosing argument results in MissingPropertyException

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.3, 2.3.4, 2.3.5, 2.3.6, 2.4.1
• Fix Version/s: 2.5.9, 3.0.0-rc-1
• Environment: Oracle JDK 1.7.0_60 @ Mavericks
• Assignee: Eric Milles
• Reporter: Bastian Helfert
• Created: 01/Aug/14 04:10
• Updated: 24/Nov/19 02:45
• Resolved: 18/Oct/19 14:08

Description

Since Groovy 2.3.3 initializing a field of an anonymous class with an enclosing argument results in a MissingPropertyException:

Code:

class MissingPropertyExceptionBug {

    interface SomeType {
    }

    static main(args) {
        new SomeType() {
            def arguments = args
        }
    }
}

...results in:

Exception in thread "main" groovy.lang.MissingPropertyException: No such property: args for class: MissingPropertyExceptionBug
	at groovy.lang.MetaClassImpl.invokeStaticMissingProperty(MetaClassImpl.java:996)
	at groovy.lang.MetaClassImpl.getProperty(MetaClassImpl.java:1851)
	at groovy.lang.MetaClassImpl.getProperty(MetaClassImpl.java:1827)
	at groovy.lang.MetaClassImpl.getProperty(MetaClassImpl.java:3690)
	at org.codehaus.groovy.runtime.InvokerHelper.getProperty(InvokerHelper.java:171)
	at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.getProperty(ScriptBytecodeAdapter.java:452)
	at MissingPropertyExceptionBug$1.propertyMissing(MissingPropertyExceptionBug.groovy)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
	at groovy.lang.MetaClassImpl.invokeMissingProperty(MetaClassImpl.java:874)
	at groovy.lang.MetaClassImpl$12.getProperty(MetaClassImpl.java:2018)
	at org.codehaus.groovy.runtime.callsite.GetEffectivePogoPropertySite.getProperty(GetEffectivePogoPropertySite.java:82)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:231)
	at MissingPropertyExceptionBug$1.<init>(MissingPropertyExceptionBug.groovy)
	at MissingPropertyExceptionBug.main(MissingPropertyExceptionBug.groovy:7)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)

Workaround:
Use a top-level class instead.

Issue Links

• links to: GitHub Pull Request #1032