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From "Dan Nimick (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GROOVY-7541) GroovyBugError in TypeTransformer.addTransformer
Date Thu, 06 Aug 2015 17:33:07 GMT

    [ https://issues.apache.org/jira/browse/GROOVY-7541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14660418#comment-14660418
] 

Dan Nimick commented on GROOVY-7541:
------------------------------------

Umm, yeah, it fails for me, or I wouldn't have opened the bug. :-)

Does it not fail for you? Remember that this IndyTest is a Java class that needs to be added
to the classpath prior to running a Groovy script that uses it. It's not a Groovy class...


> GroovyBugError in TypeTransformer.addTransformer
> ------------------------------------------------
>
>                 Key: GROOVY-7541
>                 URL: https://issues.apache.org/jira/browse/GROOVY-7541
>             Project: Groovy
>          Issue Type: Bug
>          Components: groovy-runtime
>    Affects Versions: 2.4.4
>         Environment: Java web app on either Apache on Linux or Windows,  or WebSphere
on AIX. Java 7.1. Groovy via ScriptEngineManager.getEngineByName("groovy")
>            Reporter: Dan Nimick
>             Fix For: 2.3.7
>
>
> Just updated from Groovy 2.3.6 to 2.4.4 and this code no longer works when dynamic invocation
is used (works fine when indy not used):
> d1.setIndexes(new HashMap<List<String>,DatasetIndex>());
> where d1 is one of the Java classes imported to the Groovy script. setIndexes is just
a plain setter of a field on the class. The error is
> BUG! Unknown transformation for argument <... stuff from toString of d1 here...>
at position 0 with class com.ibm.cayce.sdv.dataset.Dataset for parameter of type class org.codehaus.groovy.vmplugin.v7.IndyInterface
> It contains no stack trace, but by searching for sources of "Unknown transformation for
argument", I found it to be in TypeTransformer.addTransformer. If I put a breakpoint there,
this is the call stack:
> TypeTransformers.addTransformer(MethodHandle, int, Object, Class) line: 124	
> Selector$MethodSelector.correctCoerce() line: 793	
> Selector$MethodSelector.setCallSiteTarget() line: 958	
> IndyInterface.selectMethod(MutableCallSite, Class, String, int, Boolean, Boolean, Boolean,
Object, Object[]) line: 214	
> Script2.run() line: 2	
> GroovyScriptEngineImpl.eval(Class, ScriptContext) line: 323	
> GroovyScriptEngineImpl.eval(String, ScriptContext) line: 124	
> GroovyScriptEngineImpl(AbstractScriptEngine).eval(String) line: 276	
> Looks like TypeTransformer was introduced via org.codehaus.groovy.vmplugin.v7 in version
2.3.8, but I don't see anything in the 2.3.8 change log about it (at least not under an obvious
description).
> FWIW, we turn on dynamic invocation via:
>     CompilerConfiguration configuration = new CompilerConfiguration();     configuration.setTargetBytecode(System.getProperty("java.specification.version"));

>     configuration.getOptimizationOptions().put("indy", true); 
>     configuration.getOptimizationOptions().put("int", false); 
>    configuration.addCompilationCustomizers(importCustomizer,secureCustomizer); 
>     GroovyClassLoader gcl = new GroovyClassLoader(this.getClass().getClassLoader(), configuration);
>       ((GroovyScriptEngineImpl) engine).setClassLoader(gcl);
> Please let me know if any more info is needed, or if there is a work around (other than
not using indy).



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