[CXF-6070] NPE while calling a webservice using a clientproxy

• Type: Test
• Status: Closed
• Priority: Major
• Resolution: Done
• Affects Version/s: 2.7.12, 3.0.1, 2.7.13, 2.6.16
• Fix Version/s: 3.0.3, 2.7.14
• Component/s: Simple Frontend
• Estimated Complexity: Unknown
• Assignee: Daniel Kulp
• Reporter: Varun
• Created: 29/Oct/14 16:30
• Updated: 16/Feb/15 16:08
• Resolved: 29/Oct/14 18:41

Description

We have implemented a webservice client using apache-cxf .
When calling a webservice through a ClientProxy, for some reason there is an exception

[main] INFO org.apache.cxf.service.factory.ReflectionServiceFactoryBean - Creating Service
[main] WARN org.apache.cxf.phase.PhaseInterceptorChain - Interceptor for has thrown exception, unwinding now
java.lang.NullPointerException: NullPointerException invoking
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.mapException(HTTPConduit.java:1347)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1336)
at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56)
at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:632)
at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272)
at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:570)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:479)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:382)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:335)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:355)
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:341)
Caused by: java.lang.NullPointerException
at org.apache.cxf.endpoint.ClientImpl.onMessage(ClientImpl.java:764)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1626)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1515)
at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1318)
... 12 more
Exception in thread "main" java.lang.NullPointerException
at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:339)

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1. Testing using a standalone java program.
2. This doesn’t happen when apache cxf version 2.4 is used .
3. When upgraded the version to 2.6 and above ,we are facing this issue.

Code used to invoke the webservice is :

TestService service=new TestService();
Client client = ClientProxy.getClient(service.get*);
Map<String, Object> requestContext = client.getRequestContext();
requestContext.put(org.apache.cxf.message.Message.MAINTAIN_SESSION, Boolean.TRUE);
requestContext.put(ENDPOINT_ADDRESS_PROPERTY,faxUrl);
Object[] logOnResp= client.invoke(“webservice”,param1,param2,param3,param4);