Provider classes must implement Provider<T> even when superclass does
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Key: CXF-1852
URL: https://issues.apache.org/jira/browse/CXF-1852
Project: CXF
Issue Type: Bug
Components: JAX-WS Runtime
Affects Versions: 2.1.2
Environment: Tomcat 6.0.16
Sun JVM 1.6.0_10-rc2-b32
Centos 5 Linux (probably irrelevent)
Reporter: Andrew Clegg
Priority: Minor
I've discovered something a bit weird while messing around with provider
services. It seems that the implementation class must directly implement the
interface Provider<T>, even if its parent class already does so. If this isn't
done, I get an ArrayIndexOutOfBoundsException (on viewing the WSDL, for
example) rather than an informative failure.
Stack trace:
java.lang.ArrayIndexOutOfBoundsException: 0
org.apache.cxf.jaxws.JAXWSProviderMethodDispatcher.<init>(JAXWSProviderMethodDispatcher.java:39)
org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.initConfiguration(JaxWsServiceFactoryBean.java:400)
org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.setJaxWsImplementorInfo(JaxWsServiceFactoryBean.java:391)
org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.setServiceClass(JaxWsServiceFactoryBean.java:174)
org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.initializeServiceFactory(AbstractWSDLBasedEndpointFactory.java:227)
org.apache.cxf.frontend.ServerFactoryBean.initializeServiceFactory(ServerFactoryBean.java:156)
org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:99)
org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:116)
org.apache.cxf.jaxws.JaxWsServerFactoryBean.create(JaxWsServerFactoryBean.java:168)
org.apache.cxf.jaxws.EndpointImpl.getServer(EndpointImpl.java:336)
org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:251)
org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:201)
org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:394)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1242)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1208)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1172)
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:427)
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:249)
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:155)
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:246)
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:291)
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:352)
org.apache.cxf.transport.servlet.CXFServlet.loadAdditionalConfig(CXFServlet.java:161)
org.apache.cxf.transport.servlet.CXFServlet.updateContext(CXFServlet.java:129)
org.apache.cxf.transport.servlet.CXFServlet.loadSpringBus(CXFServlet.java:101)
org.apache.cxf.transport.servlet.CXFServlet.loadBus(CXFServlet.java:70)
org.apache.cxf.transport.servlet.AbstractCXFServlet.init(AbstractCXFServlet.java:90)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Thread.java:619)
See the attached project archive for a demonstration. It can be deployed to
Tomcat with mvn tomcat:deploy . In src/main/java/cxfbug/ProviderSubClass.java
there's a comment indicating what to change in order to tickle the bug.
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