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

IllegalAccessError for an instrumented client that uses StringBuilder#charAt(int) --------------------------------------------------------------------------------- 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 Fix For: 3.11.0.GA Attachments: stringbuilder_problem.zip 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