NullPointerException in WebServiceProxy.getServiceAt

Question

Hi,
I've created a .jsp file with the following code to access a
WSDL file:
WebServiceProxy ServiceProxy = WebServiceProxy.getServiceAt(new URL("http://myurl"));
When running it under BEA WebLogic 6.1 SP1, I get this exception:
java.lang.NullPointerException at weblogic.soap.wsdl.binding.Operation.getOutputName
(Operation.java:39) at
weblogic.soap.wsdl.binding.BindingOperation.populate(BindingOperation.java:50)
at weblogic.soap.wsdl.binding.Binding.populate(Binding.java:48)
at weblogic.soap.wsdl.binding.Definition.populate(Definition.java:116)
at weblogic.soap.WebServiceProxy.getServiceAt(WebServiceProxy.java:176)
at weblogic.soap.http.SoapContext.lookup(SoapContext.java:76)
at javax.naming.InitialContext.lookup(InitialContext.java:350)
at jsp_servlet._soap.__createservice._jspService(__createservice.java:97)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2456)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2039)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
I tried a sample code found on the BEA web site, and I still got the same issue.
Can anyone help me?
Thanks,
Miguel

Answer 1

Miguel,
I don't know what "http://myurl" points to, but I'm assuming whatever it is, it
is running WebLogic Server 6.1. If this is true, your code should looks something
like:
<%
CodecFactory factory = CodecFactory.newInstance();
factory.register(new SoapEncodingCodec());
factory.register(new LiteralCodec());
WebServiceProxy webserviceproxy = WebServiceProxy.getServiceAt(wsdlURL, factory,
true);
// use webserviceproxy to "do yo' thang!"
%>
Notice that I didn't do the "JNDI lookup hat dance" here. Also, I used the getServiceAt(URL,
CodecFactory, boolean) call, not getServiceAt(URL), which blows up because it
calls getServiceAt(URL, CodecFactory, boolean) method with (URL,null,false).
If this is what you have, and it doesn't work, you probably have to do the "JNDI
lookup hat dance", from inside your JSP :-)
The code should look like:
<%
CodecFactory factory = CodecFactory.newInstance();
factory.register(new SoapEncodingCodec());
factory.register(new LiteralCodec());
Properties h = new Properties();
h.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.soap.http.SoapInitialContextFactory");
h.put(Context.URL_PKG_PREFIXES, "");
h.put("weblogic.soap.encoding.factory", factory);
h.put("weblogic.soap.verbose", true);
Context context = new InitialContext(h);
WebServiceProxy webserviceproxy = (WebServiceProxy)context.lookup(wsdlURLString);
// use webserviceproxy to "do yo' thang!"
%>
HTH,
Mike Wooten
"Miguel Juston" <[email protected]> wrote:
>
Hi,
I've created a .jsp file with the following code to access a
WSDL file:
WebServiceProxy ServiceProxy = WebServiceProxy.getServiceAt(new URL("http://myurl"));
When running it under BEA WebLogic 6.1 SP1, I get this exception:
java.lang.NullPointerException at weblogic.soap.wsdl.binding.Operation.getOutputName
(Operation.java:39) at
weblogic.soap.wsdl.binding.BindingOperation.populate(BindingOperation.java:50)
at weblogic.soap.wsdl.binding.Binding.populate(Binding.java:48)
at weblogic.soap.wsdl.binding.Definition.populate(Definition.java:116)
at weblogic.soap.WebServiceProxy.getServiceAt(WebServiceProxy.java:176)
at weblogic.soap.http.SoapContext.lookup(SoapContext.java:76)
at javax.naming.InitialContext.lookup(InitialContext.java:350)
at jsp_servlet._soap.__createservice._jspService(__createservice.java:97)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2456)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2039)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
I tried a sample code found on the BEA web site, and I still got the
same issue.
Can anyone help me?
Thanks,
Miguel