Ant 1.6

I was using a copy task to copy a particular file using <fileset file="${bea-xbean-jar}"/>, but the file consistently failed to be copied.  The problem was that the variable bea-xbean-jar was defined in an external build.properties file, but the line contained a trailing space.

Axis

Using Apache Axis, if you invoke a web service and pass the wrong number of arguments, you will see the error 'no such operation', which can be misleading.

WebLogic 9.1 Web Services

On the topic of null pointer exceptions, I tried to create a JWS web service that accepted a POJO argument that had a SOAPElement property.  It compiled and deployed fine, but when I invoked the web service, I got the dreaded NPE:

java.lang.NullPointerException at test.TestServiceImpl.operation1(TestServiceImpl.java:17) 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:585) at
        weblogic.wsee.component.pojo.JavaClassComponent.invoke(JavaClassComponent.java:91) at
        weblogic.wsee.ws.dispatch.server.ComponentHandler.handleRequest(ComponentHandler.java:68) at
        weblogic.wsee.handler.HandlerIterator.handleRequest(HandlerIterator.java:127) at
        weblogic.wsee.ws.dispatch.server.ServerDispatcher.dispatch(ServerDispatcher.java:84) at
        weblogic.wsee.ws.WsSkel.invoke(WsSkel.java:60) at
        weblogic.wsee.server.servlet.SoapProcessor.handlePost(SoapProcessor.java:66) at
        weblogic.wsee.server.servlet.SoapProcessor.process(SoapProcessor.java:44) at
        weblogic.wsee.server.servlet.BaseWSServlet$AuthorizedInvoke.run(BaseWSServlet.java:124) at
        weblogic.wsee.server.servlet.BaseWSServlet.service(BaseWSServlet.java:53) at
        javax.servlet.http.HttpServlet.service(HttpServlet.java:856)

If I declare the service with a SOAPElement as a direct parameter, it works as advertised.

XFire

I struggled with the sample web service provided with the XFire distribution.  The problem was that I placed the XFire services configuration XML in the WAR's META-INF directory instead of within classes/META-INF.  Incidentally, I discovered that in a servlet context getClass().getClassLoader().getResource() does not search the root context directory for resources -- it only searches the classes and lib subdirectories.  To get a resource from the root, you must use getServletContext().getResource().  After this short detour, the XFire service worked.

I was unable to get the XFire test framework run the service.  It throws a null pointer exception:

java.lang.NullPointerException
	at org.codehaus.xfire.handler.LocateBindingHandler.invoke(LocateBindingHandler.java:41)
	at org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:97)
	at org.codehaus.xfire.transport.DefaultEndpoint.onReceive(DefaultEndpoint.java:57)
	at org.codehaus.xfire.transport.AbstractChannel.receive(AbstractChannel.java:38)
	at org.codehaus.xfire.test.AbstractXFireTest.invokeService(AbstractXFireTest.java:116)
	at org.codehaus.xfire.test.AbstractXFireTest.invokeService(AbstractXFireTest.java:91)
	at mm_test.BookService_Test.testBookService(BookService_Test.java:18)