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Simon Lessard commented on CXF-1737: ------------------------------------ I couldn't reproduce that issue, but found out the following piece of code within DefaultServiceConfiguration: @Override public Boolean hasOutMessage(Method m) { if (m.getReturnType().getClass().equals(void.class) && m.getExceptionTypes().length == 0) { return false; } return true; } I believe Java 5 will do some auto-boxing with void.class that might result in Void.class which is, I think, different from Void.TYPE. So, since Void.TYPE is the Class representation of the primitive void, changing the method to the following might do the trick: @Override public Boolean hasOutMessage(Method m) { if (m.getReturnType().getClass().equals(Void.TYPE) && m.getExceptionTypes().length == 0) { return false; } return true; } > NPE in ClientProxyFactoryBean on void methods > ---------------------------------------------- > > Key: CXF-1737 > URL: https://issues.apache.org/jira/browse/CXF-1737 > Project: CXF > Issue Type: Bug > Components: Core > Affects Versions: 2.1.1 > Reporter: Andreas Benneke > > If you try to access a service containing a method returning nothing (void), > the ClientProxyFactoryBean fails with a NullPointerException: > Exception in thread "main" java.lang.NullPointerException > at > org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeParameter(ReflectionServiceFactoryBean.java:643) > at > org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeClassInfo(ReflectionServiceFactoryBean.java:609) > at > org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeWSDLOperation(ReflectionServiceFactoryBean.java:540) > at > org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeWSDLOperations(ReflectionServiceFactoryBean.java:510) > at > org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildServiceFromWSDL(ReflectionServiceFactoryBean.java:305) > at > org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:394) > at > org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:181) > at > org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:79) > at > org.apache.cxf.frontend.ClientFactoryBean.create(ClientFactoryBean.java:51) > at > org.apache.cxf.frontend.ClientProxyFactoryBean.create(ClientProxyFactoryBean.java:97) > If you change the method returning something or eliminate the method > altogether, everything works fine... -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.