I'm creating a cli tool to manage an existing application. Both the application and the tests build fine and run fine but despite that I receive a javassist failure when running my cli tool that exists within the jar:
INFO: Bytecode provider name : javassist
...
INFO: Hibernate EntityManager 3.5.1-Final
Exception in thread "main" javax.persistence.PersistenceException: Unable to configure EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:371)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:55)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:32)
...
at com.sophware.flexipol.admin.AdminTool.<init>(AdminTool.java:40)
at com.sophware.flexipol.admin.AdminTool.main(AdminTool.java:69)
Caused by: java.lang.RuntimeException: Error while reading file:flexipol-jar-with-dependencies.jar
at org.hibernate.ejb.packaging.NativeScanner.getClassesInJar(NativeScanner.java:131)
at org.hibernate.ejb.Ejb3Configuration.addScannedEntries(Ejb3Configuration.java:467)
at org.hibernate.ejb.Ejb3Configuration.addMetadataFromScan(Ejb3Configuration.java:457)
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:347)
... 11 more
Caused by: java.io.IOException: invalid constant type: 60
at javassist.bytecode.ConstPool.readOne(ConstPool.java:1027)
at javassist.bytecode.ConstPool.read(ConstPool.java:970)
at javassist.bytecode.ConstPool.<init>(ConstPool.java:127)
at javassist.bytecode.ClassFile.read(ClassFile.java:693)
at javassist.bytecode.ClassFile.<init>(ClassFile.java:85)
at org.hibernate.ejb.packaging.AbstractJarVisitor.checkAnnotationMatching(AbstractJarVisitor.java:243)
at org.hibernate.ejb.packaging.AbstractJarVisitor.executeJavaElementFilter(AbstractJarVisitor.java:209)
at org.hibernate.ejb.packaging.AbstractJarVisitor.addElement(AbstractJarVisitor.java:170)
at org.hibernate.ejb.packaging.FileZippedJarVisitor.doProcessElements(FileZippedJarVisitor.java:119)
at org.hibernate.ejb.packaging.AbstractJarVisitor.getMatchingEntries(AbstractJarVisitor.java:146)
at org.hibernate.ejb.packaging.NativeScanner.getClassesInJar(NativeScanner.java:128)
... 14 more
Since I know the jar is fine as the unit and integration tests run against it, I thought it might be a problem with javassist, so I tried cglib. The bytecode provider then shows as cglib but I still get the exact same stack trace with javassist present in it.
cglib is definitely in the classpath:
$ unzip -l flexipol-jar-with-dependencies.jar | grep cglib | wc -l
383
I've tried with both hibernate 3.4 and 3.5 and get the exact same error. Is this a problem with javassist?
UPDATE: I can run the application successfully within Eclipse (Right click->Run As->Java Application), but using the maven-generated jar-with-dependencies fails. I presume the difference is that with Eclipse javassist isn't inspecting the containing jar, rather, it's inspecting all of the class files (and perhaps a few dependent 3rd-party jars).