[jboss-jira] [JBoss JIRA] (JASSIST-125) Compilation fails with "javassist.bytecode.BadBytecode: jsr at 406" WebLogic 10.3 JTA data source class

Compilation fails with "javassist.bytecode.BadBytecode: jsr at 406" WebLogic 10.3 JTA data source class ------------------------------------------------------------------------------------------------------- Key: JASSIST-125 URL: https://issues.jboss.org/browse/JASSIST-125 Project: Javassist Issue Type: Bug Affects Versions: 3.12.0.GA Environment: Reproduced on Linux x86 and Windows XP (x86). Reporter: Mooky Grand Assignee: Shigeru Chiba Fix For: 3.13.0.GA Trying to add code at the beginning of the method getConnection in the class weblogic.jdbc.jta.DataSource I got the following error: Exception in thread "main" javassist.CannotCompileException: by javassist.bytecode.BadBytecode: jsr at 399 at javassist.CtBehavior.insertBefore(CtBehavior.java:728) at javassist.CtBehavior.insertBefore(CtBehavior.java:685) at Test.main(Test.java:26) Caused by: javassist.bytecode.BadBytecode: jsr at 399 at javassist.bytecode.stackmap.Tracer.throwBadBytecode(Tracer.java:144) at javassist.bytecode.stackmap.Tracer.visitJSR(Tracer.java:133) at javassist.bytecode.stackmap.Tracer.doOpcode148_201(Tracer.java:563) at javassist.bytecode.stackmap.Tracer.doOpcode(Tracer.java:101) at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:182) at javassist.bytecode.stackmap.MapMaker.traceException(MapMaker.java:213) at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:175) at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:192) at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:141) at javassist.bytecode.stackmap.MapMaker.make(MapMaker.java:96) at javassist.bytecode.MethodInfo.rebuildStackMap(MethodInfo.java:416) at javassist.bytecode.MethodInfo.rebuildStackMapIf6(MethodInfo.java:398) at javassist.CtBehavior.insertBefore(CtBehavior.java:719) ... 2 more I've created a small program that simulates this problem outside the Weblogic container. The class can be found inside <Weblogic home>\modules\com.bea.core.datasource6_1.4.0.0.jar. And additional dependency which is required in order to load this class (although it is not needed in order to modify the byte codes) is <Weblogic home>\modules\com.bea.core.transaction_2.5.0.0.jar. Both of these files are available when installing Weblogic 10.3. I suspect this might be some sort of collision with WebLogic's Diagnostic framework. I'm not sure how calls to WLDF are added, but it is possible they were added by some other tool for manipulating byte codes (at compile time), in which case this issue is a bit more interesting (could indicate collisions with certain other AOP tools). Just for the sake of pin pointing the source of the problem, I also used AspectJ to add code to the method. It worked fine with no errors.