Bugs item #993105, was opened at 2004-07-18 10:49 Message generated for change (Comment added) made by chiba You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=376685&aid=993105&group_id=22866
Category: Javassist Group: CVS HEAD Status: Open Resolution: None Priority: 5 Submitted By: Brett Randall (brett_s_r) Assigned to: Shigeru Chiba (chiba) Summary: Reflection#makeReflective could reject some reflections Initial Comment: In application code using javassist.reflect.Loader and Reflection, attempts to reflect some Class types will result in uncatchable VerifyError-s and other bytecode level errors at runtime. Two examples are an attempt to reflect a Class that is an interface, and an attempt to reflect a subclass of either ClassMetaobject or Metaobject. Reflecting a subclass of the meta classes seems to result in recursive reflection and a bytecode error. I would prefer these easy-to-detect cases to be caught at the higher-level API through a checked Exception, rather that resulting in JVM errors. A solution that I arrived at is to create an Exception subclass of CannotCompileException called CannotReflectException, which is thrown by Reflection#makeReflective, whenever an attempt is made to reflect a Class as described above. No change to the method signature is required. I found that this improves runtime robustness by reducing the chance of uncatchable JVM errors caused by illegal bytecode enhancements. Attached are: * new Exception class CannotReflectException * patch to Reflection which throws the new Exception * two unit tests ---------------------------------------------------------------------- >Comment By: Shigeru Chiba (chiba) Date: 2004-07-19 22:58 Message: Logged In: YES user_id=388745 Thanks, I'll check your patches. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=376685&aid=993105&group_id=22866 ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=4721&alloc_id=10040&op=click _______________________________________________ JBoss-Development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
