Hello, I am currently experiencing a perplexing error in attempting to run a straight Axis1.1 client on JBoss3.2.8. I have scoured the web for 2 days to productive end. Here is my stack trace caught in createCall() in my soapbindingstub when invoked: java.lang.NoClassDefFoundError: org/jboss/axis/encoding/ser/BaseSerializerFactory | at java.lang.ClassLoader.defineClass0(Native Method) | at java.lang.ClassLoader.defineClass(ClassLoader.java:539) | at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123) | at java.net.URLClassLoader.defineClass(URLClassLoader.java:251) | at java.net.URLClassLoader.access$100(URLClassLoader.java:55) | at java.net.URLClassLoader$1.run(URLClassLoader.java:194) | at java.security.AccessController.doPrivileged(Native Method) | at java.net.URLClassLoader.findClass(URLClassLoader.java:187) | at java.lang.ClassLoader.loadClass(ClassLoader.java:289) | at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274) | at java.lang.ClassLoader.loadClass(ClassLoader.java:235) | at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) | at java.lang.Class.forName0(Native Method) | at java.lang.Class.forName(Class.java:219) | at org.apache.axis.utils.ClassUtils$2.run(ClassUtils.java:200) | at java.security.AccessController.doPrivileged(Native Method) | at org.apache.axis.utils.ClassUtils.loadClass(ClassUtils.java:179) | at org.apache.axis.utils.ClassUtils.forName(ClassUtils.java:120) | at org.apache.axis.deployment.wsdd.WSDDTypeMapping.getSerializer(WSDDTypeMapping.java:2 | at org.apache.axis.deployment.wsdd.WSDDDeployment.deployMapping(WSDDDeployment.java:372 | at org.apache.axis.deployment.wsdd.WSDDDeployment.getTypeMappingRegistry(WSDDDeployment | at org.apache.axis.configuration.FileProvider.getTypeMappingRegistry(FileProvider.java: | at org.apache.axis.AxisEngine.getTypeMappingRegistry(AxisEngine.java:325) | at org.apache.axis.MessageContext.getTypeMappingRegistry(MessageContext.java:479) | at org.apache.axis.client.Call.getTypeMapping(Call.java:2399) | at org.apache.axis.client.Call.registerTypeMapping(Call.java:2436) | at org.apache.axis.client.Call.registerTypeMapping(Call.java:2465) | at com.amd.mte.axis.service.MTEWSSoapBindingStub.createCall(MTEWSSoapBindingStub.java:2 | at com.amd.mte.axis.service.MTEWSSoapBindingStub.get(MTEWSSoapBindingStub.java:303) | at com.amd.catalyst.fdc.MTEInterface.retrieveData(MTEInterface.java:139) | at com.amd.catalyst.fdc.MTEInterface.<init>(MTEInterface.java:54) | at com.amd.catalyst.jacl.JCatalyst.FDCMTEInterface.test(FDCMTEInterface.java:52) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25 | at java.lang.reflect.Method.invoke(Method.java:324) | at tcl.lang.reflect.PkgInvoker.invokeMethod(PkgInvoker.java:128) | at tcl.lang.JavaInvoke.call(JavaInvoke.java:304) | at tcl.lang.JavaInvoke.callMethod(JavaInvoke.java:161) | at tcl.lang.ReflectObject.cmdProc(ReflectObject.java:916) | at tcl.lang.Interp.callCommand(Interp.java:1266) I have noted that: org.jboss.axis.encoding.ser.BaseSerializerFactory is present in the JBoss 4.0.2+ soap stack, but I am NOT using 4.0.2+ I have reviewed: http://www.jboss.org/?module=bb&op=viewtopic&p=3876437 http://wiki.jboss.org/wiki/Wiki.jsp?page=WebServiceStacks MY QUESTION: Where is the reference coming from in my 3.2.8 deployment to: org.jboss.axis.encoding.ser.BaseSerializerFactory ?? There are no references to the org.jboss.axis package in any of the Axis code. This is has perplexed me (and colleagues) for the last 48+ hours (almost straight). I would greatly appreciate any knowledge shared. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3995797#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...