I do remember having some difficulty with NoClassDefFoundErrors on Weblogic 7, but not sure if it will help resolve your problem.
Anyway, the following works for me on WLS7. EAR file contains WAR file. WAR file contains Axis jars in WEB-INF/lib folder. All my "application" classes are in WEB-INF/classes. I think at some stage I had these in WEB-INF/lib as a Jar file but that's when I had the error. If my recollection is right, then that does sound like a classloader bug (though not necessarily an Axis one), but I didn't investigate thoroughly enough to be sure. Hope this helps Keith -----Original Message----- From: J.P. Leibundguth [mailto:[EMAIL PROTECTED] Sent: 13 February 2004 21:08 To: [EMAIL PROTECTED] Subject: Axis + Weblogic 8.1sp2: Custom Deserialization Problem I have a set of set of custom ser/deser/factory classes configured against an EJB that work so far in this scenerio: MyObject getObject(String guid); As long as Axis executes the serializer on the server and the deserializer in my standalone test program it works fine. As a note, my deserializers are using MethodTarget to handle the conventional fields and I have a subclass that handles array-to-collection transforms to meet my interface, which is mostly java collections-based. When I go the other direction, executing the deserializer on the server [truncated]: setObject(MyObject); I get the following exception: java.lang.NoClassDefFoundError: org.apache.axis.encoding.Target at java.lang.ClassLoader.defineClass(Ljava.lang.String;[BIILjava.security.ProtectionDomain;)Ljav a.lang.Class;(Unknown Source) at java.security.SecureClassLoader.defineClass(Ljava.lang.String;[BIILjava.security.CodeSource;) Ljava.lang.Class;(SecureClassLoader.java:123) at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(Ljava.lang.String;)Ljava.lang.C lass;(GenericClassLoader.java:476) at weblogic.utils.classloaders.GenericClassLoader.findClass(Ljava.lang.String;)Ljava.lang.Class; (GenericClassLoader.java:181) I'm running this as a webapp on WLS 8.1. The webapp (WAR) is embedded in a .ear file, which contains all fo the Axis JARs too. I reference them in a META-INF classpath, which usually works OK. Since this problem, I've also tried copying them to /WEB-INF/lib, extracting them to WEB-INF/classes, adding axis.jar to the WLS classpath, putting axis.jar in the JRE /ext directory and lots of combinations of the above. I also tried removing all of the META-INF directories and files in the axis-related JARs as suggested for deployment on the 6.1 platform for good measure. You name it, I've tried it. I suspect the problem has to do with class visibility/resolution between Axis and Weblogic classloaders, but those details are pretty opaque to me at this stage and I don't know the proper init hooks to intercept the problem, and say, tie together or redirect the classloader chain or something. Has anyone experienced a similar problem? Thanks! J.P. Leibundguth Houston Associates, Inc.
