Question

I have a few problems with the cxf + WSClient in soap.

I am writing a small tool in grails that must make SOAP calls to an existing service.

WSClient (groovyws-0.5.3-20100521.062225-1.jar) seemed like the perfect solution to my problem.
However when i tried to implement a call to one of the actions i get two problems.

Problem #1 NullPointerException when making a call to some of the actions.

I have tracked down the code that is throwing the exception inside of

AbstractCXFWSClient.invokeMethod(String methodName, Object args)

     if (!operationToBeInvoked.isUnwrapped()){
                //Operation uses document literal wrapped style.
                inputMessageInfo = operationToBeInvoked.getWrappedOperation().getInput();
     } else {
                inputMessageInfo = operationToBeInvoked.getUnwrappedOperation().getInput();
            }

specifically operationToBeInvoked.getWrappedOperation() I have isolated the code in a unit test and find that both operationToBeInvoked.getWrappedOperation() and operationToBeInvoked.getWrappedOperation() result in null objects. I have tried to figure out what is causing it however i think i have gotten to the end of my knowledge.

Problem #2 WSClient.create(String classname) is eating a ClassNotFoundException (and then throwing a NullPointerException)

Basicly when I make the following call

def event = client.create("com.mypackage.MyBean");

Same bean that i can see by browsing the services from the browser.

<xs:complexType name="myBean">
<xs:sequence>
<xs:element minOccurs="0" name="id" type="xs:long"/>
<xs:element maxOccurs="unbounded" minOccurs="0" name="facets" nillable="true" type="tns:beanBean"/>
<xs:element minOccurs="0" name="sortId" type="xs:string"/>
<xs:element minOccurs="0" name="itemId" type="xs:string"/>
<xs:element minOccurs="0" name="preview" type="xs:boolean"/>
</xs:sequence>
</xs:complexType> 

I get a NPE. When i drill down to figure out why i get an NPE, I find that its because the classloader on the WSClient can’t find “com.mypackage.MyBean” eats the ClassNotFoundException and then inevitably throws an NPE.

Edit: Should I be using a different client the WSClient/cxf ? I really wanted to avoid having to roll my own…..

Answer 1

Basicly I didn’t find the answer. I basicly was forced to uninstall the two plugins and cxf and not using the groovy WSClient.

What i did was install the ws-client plugin for grails and that worked.

http://www.grails.org/plugin/ws-client