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

[kobe valiant (JIRA)]

Strange Exception: Register x contains wrong type
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                 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


        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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