[rules-users] Problem deploying Drools V5 as a webservice on Weblogic 10

Hello, I am trying to migrate an application of my company from Drools V4.0.7 to V5.1.1 (without actually using features brought by v5), and I am currently experiencing a problem. The application is called via an Axis web service deployed on a Weblogic 10 server, using JDK v1.5.0_14. I have two ways to test the application: - A simple java class that sets the facts and calls directly the implemented method of the web service - Using soapUI, after having deployed the .war file of my web service on my Weblogic server. While in V4, everything works fine, java test and web service test (with SoapUI) alike, I get the expected results. With V5, the Java test works as expected, but the web service test fails (I get a "java.lang.reflect.InvocationTargetException" without any StackTrace). I put the server in debug mode and tried to narrow down the problem in eclipse the best I could. The first difference I noticed, was that the classloader was different between the two test methods: - for the java test: Launcher$AppClassLoader - for the WS test: ChangeAwareClassLoader However, I don't really know how it affects the execution. After debugging deeper into the code, I found out the difference: at some point (see stack below) it seems to get the wrong "referent" from Reference.class. In the java test, the referent is an "ObjectStreamClass", whereas in the web service test, it becomes a "NoClassDefFoundError"... Where could that come from ? Does it have something to do with the ClassLoader (I admit this area is out of the bounds of my coding skills) ? For more details, here is the stack from my java test (some lines excluded) : ObjectStreamClass.lookup(Class, boolean) line: 261 ObjectStreamClass.initNonProxy(ObjectStreamClass, Class, ClassNotFoundException, ObjectStreamClass) line: 531 DroolsObjectInputStream(ObjectInputStream).readNonProxyDesc(boolean) line: 1552 DroolsObjectInputStream(ObjectInputStream).readClassDesc(boolean) line: 1466 DroolsObjectInputStream(ObjectInputStream).readOrdinaryObject(boolean) line: 1699 DroolsObjectInputStream(ObjectInputStream).readObject0(boolean) line: 1305 DroolsObjectInputStream(ObjectInputStream).readObject() line: 348 HashMap<K,V>.readObject(ObjectInputStream) line: 1067 NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method] NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39 DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25 Method.invoke(Object, Object...) line: 585 ObjectStreamClass.invokeReadObject(Object, ObjectInputStream) line: 946 DroolsObjectInputStream(ObjectInputStream).readSerialData(Object, ObjectStreamClass) line: 1809 DroolsObjectInputStream(ObjectInputStream).readOrdinaryObject(boolean) line: 1719 DroolsObjectInputStream(ObjectInputStream).readObject0(boolean) line: 1305 DroolsObjectInputStream(ObjectInputStream).readObject() line: 348 DialectRuntimeRegistry.readExternal(ObjectInput) line: 59 DroolsObjectInputStream(ObjectInputStream).readExternalData(Externalizable, ObjectStreamClass) line: 1755 DroolsObjectInputStream(ObjectInputStream).readOrdinaryObject(boolean) line: 1717 DroolsObjectInputStream(ObjectInputStream).readObject0(boolean) line: 1305 DroolsObjectInputStream(ObjectInputStream).readObject() line: 348 Package.readExternal(ObjectInput) line: 197 DroolsObjectInputStream(ObjectInputStream).readExternalData(Externalizable, ObjectStreamClass) line: 1755 DroolsObjectInputStream(ObjectInputStream).readOrdinaryObject(boolean) line: 1717 DroolsObjectInputStream(ObjectInputStream).readObject0(boolean) line: 1305 DroolsObjectInputStream(ObjectInputStream).readObject() line: 348 DroolsStreamUtils.streamIn(InputStream, ClassLoader, boolean) line: 205 DroolsStreamUtils.streamIn(InputStream) line: 174 FileScanner.readPackage(File) line: 147 FileScanner.getChangeSet() line: 97 FileScanner.loadPackageChanges() line: 72 DirectoryScanner.loadPackageChanges() line: 85 And here is the stack, at the same point, from my web service (difference in bold) : ObjectStreamClass.lookup(Class, boolean) line: 261 ObjectStreamClass.initNonProxy(ObjectStreamClass, Class, ClassNotFoundException, ObjectStreamClass) line: 531 DroolsObjectInputStream(ObjectInputStream).readNonProxyDesc(boolean) line: 1552 DroolsObjectInputStream(ObjectInputStream).readClassDesc(boolean) line: 1466 DroolsObjectInputStream(ObjectInputStream).readOrdinaryObject(boolean) line: 1699 DroolsObjectInputStream(ObjectInputStream).readObject0(boolean) line: 1305 DroolsObjectInputStream(ObjectInputStream).readObject() line: 348 HashMap<K,V>.readObject(ObjectInputStream) line: 1067 GeneratedMethodAccessor2.invoke(Object, Object[]) line: not available DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25 Method.invoke(Object, Object...) line: 585 ObjectStreamClass.invokeReadObject(Object, ObjectInputStream) line: 946 DroolsObjectInputStream(ObjectInputStream).readSerialData(Object, ObjectStreamClass) line: 1809 DroolsObjectInputStream(ObjectInputStream).readOrdinaryObject(boolean) line: 1719 DroolsObjectInputStream(ObjectInputStream).readObject0(boolean) line: 1305 DroolsObjectInputStream(ObjectInputStream).readObject() line: 348 DialectRuntimeRegistry.readExternal(ObjectInput) line: 59 DroolsObjectInputStream(ObjectInputStream).readExternalData(Externalizable, ObjectStreamClass) line: 1755 DroolsObjectInputStream(ObjectInputStream).readOrdinaryObject(boolean) line: 1717 DroolsObjectInputStream(ObjectInputStream).readObject0(boolean) line: 1305 DroolsObjectInputStream(ObjectInputStream).readObject() line: 348 Package.readExternal(ObjectInput) line: 197 DroolsObjectInputStream(ObjectInputStream).readExternalData(Externalizable, ObjectStreamClass) line: 1755 DroolsObjectInputStream(ObjectInputStream).readOrdinaryObject(boolean) line: 1717 DroolsObjectInputStream(ObjectInputStream).readObject0(boolean) line: 1305 DroolsObjectInputStream(ObjectInputStream).readObject() line: 348 DroolsStreamUtils.streamIn(InputStream, ClassLoader, boolean) line: 205 DroolsStreamUtils.streamIn(InputStream) line: 174 FileScanner.readPackage(File) line: 147 FileScanner.getChangeSet() line: 97 FileScanner.loadPackageChanges() line: 72 DirectoryScanner.loadPackageChanges() line: 85 I hope I made the situation as clear as I could. I'm available for further details, and obviously, any help would be very appreciated :) . -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Problem-deploying-Dro... Sent from the Drools - User mailing list archive at Nabble.com.