Exception wrapping loses information ------------------------------------ Key: FORGE-1969 URL: https://issues.jboss.org/browse/FORGE-1969 Project: Forge Issue Type: Bug Security Level: Public(Everyone can see) Components: Furnace (Container) Affects Versions: 2.7.2.Final Reporter: Ondrej Zizka Assignee: Lincoln Baxter III Fix For: 2.8.1.Final In Forge, exceptions are wrapped by Javassist to prevent CCEx when exceptions traverse the addon boundaries. But this wrapping is done in a way that the hierarchy of exceptions is not treated correctly - seems that it's only getting to the bottom of causes, dropping the important context and linked information (e.g. InvocationTargetException's target, JAXB's linkedException, ...). One example: Shown exception: org.javassist.tmp.java.lang.Exception_$$_javassist_3c6f95f1-dabc-4ae0-b23a-7fe4056dfdf3: null at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:197) at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:443) at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:431) at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:373) at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:118) at javax.xml.bind.ContextFinder.safeLoadClass(ContextFinder.java:563) at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:225) at javax.xml.bind.ContextFinder.find(ContextFinder.java:445) at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:637) at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:584) at org.jboss.windup.reporting.xslt.jaxb.FrameToJaxbTest.testFrameToJaxb(FrameToJaxbTest.java:80) Actual exception: javax.xml.bind.JAXBException - with linked exception: [java.lang.ClassNotFoundException: com.sun.xml.internal.bind.v2.ContextFactory from [Module "_DEFAULT_:259a118d-0dc2-4d39-bce5-46b4de8d118b_84602e04-6399-449b-89b8-874e07e9bcf9" from AddonModuleLoader]] Other example, not sure if the same problem, but similar symptoms: Thrown: java.lang.reflect.InvocationTargetException: null at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:197) at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:443) at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:431) at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:373) at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:118) at org.jboss.windup.reporting.xslt.jaxb.FrameToJaxbTest.testFrameToJaxb(FrameToJaxbTest.java:85) Actual exception: java.lang.reflect.InvocationTargetException target: java.lang.reflect.InvocationTargetException target: java.lang.NoClassDefFoundError: org/eclipse/persistence/jaxb/JAXBContextFactory cause: java.lang.ClassNotFoundException: org.eclipse.persistence.jaxb.JAXBContextFactory from [Module "_DEFAULT_:d6fe055f-7707-4e8e-ae01-3996910ddefe_3e63525b-91df-4f68-b300-a1166a74fa46" from AddonModuleLoader]