Calling a service from within another service causes NPE
--------------------------------------------------------
Key: AXIS2-679
URL: http://issues.apache.org/jira/browse/AXIS2-679
Project: Apache Axis 2.0 (Axis2)
Type: Bug
Components: core
Versions: 1.0
Environment: WinXP Pro, JDK 1.4, Tomcat 5.5
Reporter: Ali Sadik Kumlali
Here is my scenario:
1) I have serviceA.wsdl and serviceB.wsdl.
2) I generate skeletons and stubs with WSDL2Java
3) I have serviceA.aar which has serviceB.wsdl's stub
4) When I call serviceB's stub from a class found in serviceA.aar I get the
following error:
----------------------------------------------------------------
java.lang.NullPointerException
at
org.apache.axis2.context.ServiceGroupContext.getServiceContext(ServiceGroupContext.java:59)
at org.apache.axis2.client.ServiceClient.<init>(ServiceClient.java:101)
at
com.mycompany.service.test.account.AccountServicesStub.<init>(AccountServicesStub.java:79)
----------------------------------------------------------------
I founded that "unassinged parent" caused the NPE. If the service is already
registered in axisConfig it doesn't enter in the code that assings a parent to
the service. Also, it doesn't uses the parent of the registered service.
The code causes NPE is here:
----------------------------------------------------------------
// org.apache.axis2.client.ServiceClient
public ServiceClient(ConfigurationContext configContext,
AxisService axisService) throws AxisFault {
...
// If the service is already registered, it doesn't enter
// here so there will be no parent.
if (this.axisConfig.getService(this.axisService.getName()) == null) {
this.axisConfig.addService(this.axisService);
}
ServiceGroupContext sgc = new ServiceGroupContext(this.configContext,
(AxisServiceGroup) this.axisService.getParent());
this.serviceContext = sgc.getServiceContext(this.axisService);
}
----------------------------------------------------------------
I made the following change and it worked:
----------------------------------------------------------------
// org.apache.axis2.client.ServiceClient
public ServiceClient(ConfigurationContext configContext,
AxisService axisService) throws AxisFault {
...
AxisService service = null;
AxisService registeredService =
this.axisConfig.getService(this.axisService.getName());
if (registeredService != null) {
service = registeredService;
} else {
this.axisConfig.addService(this.axisService);
service = this.axisService;
}
ServiceGroupContext sgc = new ServiceGroupContext(this.configContext,
(AxisServiceGroup) service.getParent());
this.serviceContext = sgc.getServiceContext(service);
}
----------------------------------------------------------------
But this time, there was no addressing and security headers in the soap
message. Then I tried to manually engage the modules as following:
----------------------------------------------------------------
stubB._getServiceClient().engageModule(new QName("addressing"));
stubB._getServiceClient().engageModule(new QName("rampart"));
----------------------------------------------------------------
It didn't work either.
P.S.: I tried both 1.0 RC5 and 1.0 releases.
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