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https://issues.apache.org/jira/browse/GROOVY-7820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Paul King resolved GROOVY-7820.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 2.4.7

merged proposed PR

> CachedMethod.compareToCachedMethod throws "Should never happen"
> ---------------------------------------------------------------
>
>                 Key: GROOVY-7820
>                 URL: https://issues.apache.org/jira/browse/GROOVY-7820
>             Project: Groovy
>          Issue Type: Bug
>          Components: groovy-jdk, groovy-runtime
>    Affects Versions: 2.4.6
>         Environment: Groovy Version: 2.4.6 JVM: 1.8.0_72 Vendor: Oracle 
> Corporation OS: Linux
>            Reporter: Felipe Mamud
>            Assignee: Paul King
>             Fix For: 2.4.7
>
>
> When running the code below:
> {code:java}
> String.metaClass.methods.unique()
> {code}
> The exception occurs:
> {noformat}
> Exception in thread "main" java.lang.RuntimeException: Should never happen
>       at 
> org.codehaus.groovy.reflection.CachedMethod.compareToCachedMethod(CachedMethod.java:171)
>       at 
> org.codehaus.groovy.reflection.CachedMethod.compareTo(CachedMethod.java:140)
>       at 
> org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.compareToWithEqualityCheck(DefaultTypeTransformation.java:588)
>       at 
> org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.compareTo(DefaultTypeTransformation.java:543)
>       at 
> org.codehaus.groovy.runtime.NumberAwareComparator.compare(NumberAwareComparator.java:34)
>       at 
> org.codehaus.groovy.runtime.DefaultGroovyMethods.numberAwareCompareTo(DefaultGroovyMethods.java:1119)
>       at 
> org.codehaus.groovy.runtime.DefaultGroovyMethods.coercedEquals(DefaultGroovyMethods.java:11493)
>       at 
> org.codehaus.groovy.runtime.DefaultGroovyMethods.unique(DefaultGroovyMethods.java:1071)
>       at 
> org.codehaus.groovy.runtime.DefaultGroovyMethods.unique(DefaultGroovyMethods.java:1044)
>       at org.codehaus.groovy.runtime.dgm$739.invoke(Unknown Source)
>       at 
> org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:274)
>       at 
> org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:56)
>       at 
> org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
>       at 
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
>       at 
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
>       at com.study.Main.run(Main.groovy:3)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>       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:1212)
>       at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1021)
>       at 
> org.codehaus.groovy.runtime.InvokerHelper.invokePogoMethod(InvokerHelper.java:923)
>       at 
> org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:906)
>       at 
> org.codehaus.groovy.runtime.InvokerHelper.runScript(InvokerHelper.java:410)
>       at org.codehaus.groovy.runtime.InvokerHelper$runScript.call(Unknown 
> Source)
>       at 
> org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
>       at 
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
>       at 
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133)
>       at com.study.Main.main(Main.groovy)
> {noformat}
> It is seen that is being compared to the same cached method with distinct 
> instances. It should be treated as a cached method?
> {code:java}
> self.toString()
> (Java.lang.String) public boolean java.lang.String.equals (java.lang.Object)
> other.toString()
> (Java.lang.String) public boolean java.lang.Object.equals (java.lang.Object)
> {code}
> Thanks!



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