[jboss-jira] [JBoss JIRA] Created: (JASSIST-76) IllegalAccessError for an instrumented client that uses StringBuilder#charAt(int)

[Yanic Inghelbrecht (JIRA)]

IllegalAccessError for an instrumented client that uses StringBuilder#charAt(int)
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                 Key: JASSIST-76
                 URL: https://jira.jboss.org/jira/browse/JASSIST-76
             Project: Javassist
          Issue Type: Bug
    Affects Versions: 3.10.0.GA
         Environment: Javassist 3.10 (latest from cvs HEAD)
Version: 3.4.1, Build id: M20080911-1700, compiler compliance setting is 1.5
executing the code on Sun's JRE build 1.5.0_16-b02
platform is Win XP

            Reporter: Yanic Inghelbrecht
            Assignee: Shigeru Chiba
            Priority: Blocker


Hi Chiba,

I'm getting an IllegalAccessError after instrumenting a client that calls StringBuilder#charAt(int). Since I don't control what code gets instrumented by my users and this is pretty common usage, it is a high priority for me.

Exception in thread "main" java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at test_stringbuilder_problem.Main.main(Main.java:34)

Caused by: java.lang.IllegalAccessError: tried to access class java.lang.AbstractStringBuilder from class test_stringbuilder_problem.Client
	at test_stringbuilder_problem.Client.test(Client.java:6)
	... 5 more

I see that in a couple of days javassist's 10th birthday is coming up, congratulations! I hope you'll find the time to celebrate!

As always, hoping for a quick fix.  ;o)

Thanks in advance.

Best regards,
Yanic


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