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Date: Fri, 19 May 2017 23:51:04 +0000 (UTC)
From: "Bruno P. Kinoshita (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (BCEL-289) Crash when parsing constructor of
 inner classes with parameters annotated
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archived-at: Fri, 19 May 2017 23:51:10 -0000


    [ https://issues.apache.org/jira/browse/BCEL-289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16018180#comment-16018180 ] 

Bruno P. Kinoshita commented on BCEL-289:
-----------------------------------------

+1 that would be great :-)

> Crash when parsing constructor of inner classes with parameters annotated
> -------------------------------------------------------------------------
>
>                 Key: BCEL-289
>                 URL: https://issues.apache.org/jira/browse/BCEL-289
>             Project: Commons BCEL
>          Issue Type: Bug
>          Components: Parser
>    Affects Versions: 6.0
>            Reporter: Pietro Ferrara
>            Assignee: Bruno P. Kinoshita
>            Priority: Critical
>             Fix For: 6.1
>
>
> BCEL crashes when parsing the constructor of an inner class whose parameters are annotated. For instance, when parsing the jar obtained from the following classes:
> {code:java}
> public @interface A {}
> public @interface B {}
> public class Test {
>     public class Inner {
> 	public Inner(@A Object a, @B Object b) {}
>     }
> }
> {code}
> In particular:
> {code:java}
> 		ClassParser cp = new ClassParser(args[0]);
> 		ClassGen cg = new ClassGen(cp.parse());
> 		MethodGen mg = new MethodGen(cg.getMethodAt(0), cg.getClassName(), cg.getConstantPool());
> 		mg.getAnnotationsOnParameter(0);
> {code}
> (where args\[0\] points to Test$Inner.class)
> you get
> {noformat}
> Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2
> 	at org.apache.bcel.generic.MethodGen.ensureExistingParameterAnnotationsUnpacked(MethodGen.java:1120)
> 	at org.apache.bcel.generic.MethodGen.getAnnotationsOnParameter(MethodGen.java:1073)
> {noformat}


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