[jboss-jira] [JBoss JIRA] Resolved: (JASSIST-67) Strange Exception: Register x contains wrong type

[Shigeru Chiba (JIRA)]

     [ https://jira.jboss.org/jira/browse/JASSIST-67?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shigeru Chiba resolved JASSIST-67.
----------------------------------

    Fix Version/s: 3.11.0.GA
       Resolution: Done


> Strange Exception: Register x contains wrong type
> -------------------------------------------------
>
>                 Key: JASSIST-67
>                 URL: https://jira.jboss.org/jira/browse/JASSIST-67
>             Project: Javassist
>          Issue Type: Bug
>    Affects Versions: 3.8.1.GA
>         Environment: windowsXP
>            Reporter: kobe valiant
>            Assignee: Shigeru Chiba
>            Priority: Blocker
>             Fix For: 3.11.0.GA
>
>
>         ClassPool pool = new ClassPool(true);
>         CtClass ctc = pool.makeClass("my.Clazz");
>         StringBuilder sb = new StringBuilder("public void test() {");
>         for (int i = 0; i < 1000; i++) {
>         sb.append("for(int i=0; i<10; i++) {}");                  // line 1
> //      sb.append("for(int i=0; i<10; i++) {int j=i;}");        // line 2
>         }
>         sb.append("}");
>         ctc.addMethod(CtNewMethod.make(sb.toString(), ctc));
>         ctc.toClass().newInstance();
> 	
> the code above will throw an exception:
> Exception in thread "main" java.lang.VerifyError: (class: my/Clazz, method: test signature: ()V) Register 0 contains wrong type
> But if you comment the line 1 and uncomment the line 2, there will no exception at all.

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