JAX-WS: A NullPointerException may occur when calling an async method
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Key: AXIS2-4758
URL: https://issues.apache.org/jira/browse/AXIS2-4758
Project: Axis2
Issue Type: Bug
Reporter: Rich Scheuerle
Assignee: Rich Scheuerle
The following NullPointerException may occur when invoking a JAX-WS async method
java.lang.NullPointerException
at
org.apache.axis2.jaxws.marshaller.factory.MethodMarshallerFactory.
getMarshaller(MethodMarshallerFactory.java:106) at
org.apache.axis2.jaxws.client.proxy.JAXWSProxyHandler.
getFaultResponse(JAXWSProxyHandler.java:473) at
org.apache.axis2.jaxws.client.proxy.ProxyAsyncListener.
getFaultResponse(ProxyAsyncListener.java:70) at
org.apache.axis2.jaxws.client.async.AsyncResponse.
processFaultResponse(AsyncResponse.java:431) at
org.apache.axis2.jaxws.client.async.AsyncResponse.onError
(AsyncResponse.java:129)
...
The problem occurs because the JAX-WS runtime must find and inspect the JAX-WS
synchronous method in some cases.
For example, the synchronous method contains the checked exceptions and must be
examined when the web service
returns a fault.
If the synchronous method has a name that is different than the wsdl operation
name, the search may fail.
This triggers the NullPointerException.
Proposed Solutoin:
I have a small change to the search algorithm which will guarantee that the
synchronous method is found.
Kudos to Paul Mariduena for providing a test and testing this fix.
I will be committing the change later today.
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