[GROOVY-8645] ClassCastException after checking of instanceOf

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Information Provided
• Affects Version/s: 2.4.11
• Component/s: groovy-runtime
• Assignee: Unassigned
• Reporter: Aram Arabyan
• Created: 14/Jun/18 12:08
• Updated: 14/Nov/23 14:54
• Resolved: 14/Nov/23 14:54

Description

 Have grails (version 3.2.11) application (it includes groovy-2.4.11.jar). And following code

 @CompileStatic
    def removeAllErrors(DomainClass domainInstance) {
        newAssociationOperationRunnerBuilder(domainInstance)
        .setSkipChain({DomainObjectDetails<DomainObjectDataSingle> domainObjectDetails ->
            skipValidation(domainObjectDetails.currentDomain.domainObject, domainObjectDetails.associationProp?.name)})
        .build().run({DomainObjectDetails<DomainObjectDataSingle> domainObjectDetails ->
            DomainClass domain = domainObjectDetails.currentDomain.domainObject
            if (domain instanceof GormValidateable) {
                ((GormValidateable)domain).clearErrors()
            }
            if(domain instanceof WarningsHolder) {
                WarningsHolder warningsHolder = domain as WarningsHolder //<--line 120
                Warnings warnings = warningsHolder.getWarnings()
                warnings.clearWarnings(false, true)
            }
        })
    }

And I am getting following exception

java.lang.IllegalArgumentException: java.lang.ClassCastException@58798bfb
	at sun.reflect.GeneratedMethodAccessor5958.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1213)
	at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1125)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
	at org.codehaus.groovy.runtime.InvokerHelper.invokePogoMethod(InvokerHelper.java:925)
	at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:908)
	at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodN(ScriptBytecodeAdapter.java:168)
	at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.asType(ScriptBytecodeAdapter.java:591)
	at com.webbfontaine.grails.plugins.validation.rules.DocVerificationService$_removeAllErrors_closure5.doCall(DocVerificationService.groovy:120)
	at sun.reflect.GeneratedMethodAccessor2559.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)

Any idea what can be the reason ? Pay attention that I have @CompileStatic there also.

========================================================================= Previous version of this code was without @CompileStatic

 def removeAllErrors(def domainInstance) {
        newAssociationOperationRunnerBuilder(domainInstance)
        .setSkipChain({DomainObjectDetails<DomainObjectDataSingle> domainObjectDetails ->
            skipValidation(domainObjectDetails.currentDomain.domainObject, domainObjectDetails.associationProp?.name)})
        .build().run({DomainObjectDetails<DomainObjectDataSingle> domainObjectDetails ->
            domainObjectDetails.currentDomain.domainObject.clearErrors()
            if(domainObjectDetails.currentDomain.domainObject instanceof WarningsHolder) {
                Warnings warnings = domainObjectDetails.currentDomain.domainObject.getWarnings()
                warnings.clearWarnings(false, true)
            }
        })
    }

And I was getting this exception

com.webbfontaine.sw.sad.ci.Item cannot be cast to com.webbfontaine.sw.sad.ci.Item_$$_jvst840_3. Stacktrace follows: java.lang.ClassCastException: com.webbfontaine.sw.sad.ci.Item cannot be cast to com.webbfontaine.sw.sad.ci.Item_$$_jvst840_3 at com.webbfontaine.grails.plugins.validation.rules.DocVerificationService$_removeAllErrors_closure5.doCall(DocVerificationService.groovy:111)