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From "Steve Park (JIRA)" <j...@apache.org>
Subject [jira] Created: (AXIS2-4044) NullPointerException on web method with array return value and List parameter
Date Tue, 23 Sep 2008 23:31:44 GMT
NullPointerException on web method with array return value and List parameter
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                 Key: AXIS2-4044
                 URL: https://issues.apache.org/jira/browse/AXIS2-4044
             Project: Axis 2.0 (Axis2)
          Issue Type: Bug
          Components: jaxws
    Affects Versions: 1.4.1
         Environment: Windows 2003 server 64 bit, Tomcat 5.5.26, JDK 1.5.0_10
            Reporter: Steve Park


I've deployed a JAXWS web service that uses JAXB binding classes on the client and the server.
 I get a NullPointerException when attempting to call a web method with the following signature:

public String[] webMethod(Object token, List<String> listParam, boolean boolParam)

I traced the problem to the setReturnType method of the org.apache.axis2.jaxws.description.builder.converter.JavaMethodsToMDCConverter
class.  Instead of returning an array class as the type, the method.getGenericReturnType()
method returns a GenericTypeArrayImpl object.  Since this type isn't handled in the if clause
of the setReturnType method, the return type on the web method is set to null.

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