[jboss-jira] [JBoss JIRA] (JASSIST-152) instrumentation fails when building stackmap for local var of array type : bad array type for AALOAD: null

[Yanic Inghelbrecht (JIRA)]

Yanic Inghelbrecht created JASSIST-152:
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             Summary: instrumentation fails when building stackmap for local var of array type : bad array type for AALOAD: null
                 Key: JASSIST-152
                 URL: https://issues.jboss.org/browse/JASSIST-152
             Project: Javassist
          Issue Type: Bug
    Affects Versions: 3.15.0-GA
         Environment: Any
            Reporter: Yanic Inghelbrecht
            Assignee: Shigeru Chiba


When trying to instrument the attached org.hibernate.cfg.AbstractPropertyHolder (copied from the hibernate 4.0.1 final distribution), instrumentation fails with the following exception :

java.lang.RuntimeException: fatal error: 
	at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:177)
	at javassist.bytecode.stackmap.MapMaker.fillStackMap(MapMaker.java:410)
	at javassist.bytecode.stackmap.MapMaker.toStackMapBody(MapMaker.java:393)
	at javassist.bytecode.stackmap.MapMaker.toStackMap(MapMaker.java:323)
	at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:98)
	at javassist.bytecode.MethodInfo.rebuildStackMap(MethodInfo.java:417)
	at javassist.bytecode.MethodInfo.rebuildStackMapIf6(MethodInfo.java:399)
	at javassist.expr.ExprEditor.doit(ExprEditor.java:113)
	at javassist.CtBehavior.instrument(CtBehavior.java:672)
	at test_abstractpropertyholder.SimpleTranslator.modify(SimpleTranslator.java:25)
	at test_abstractpropertyholder.SimpleTranslator.onLoad(SimpleTranslator.java:19)
	at test_abstractpropertyholder.JavassistInstrumenter.getInstrumentedClass(JavassistInstrumenter.java:21)
	at test_abstractpropertyholder.Main.main(Main.java:32)transforming org.hibernate.cfg.AbstractPropertyHolder

Caused by: javassist.bytecode.BadBytecode: bad array type for AALOAD: null
	at javassist.bytecode.stackmap.TypeData$ArrayElement.getName(TypeData.java:422)
	at javassist.bytecode.stackmap.TypeData$TypeName.getExpected(TypeData.java:292)
	at javassist.bytecode.stackmap.TypeData$TypeName.getTypeData(TypeData.java:175)
	... 12 more


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