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NullPointerException in JAXWSMetaDataBuilder
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created by <a href="https://community.jboss.org/people/xdury">Xavier Dury</a> in <i>JBoss Web Services</i> - <a href="https://community.jboss.org/message/772265#772265">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I'm using jboss 5.1.0 and I'm trying to attach a custom SOAPHandler to a WebService reference injected in an EJB:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@Stateless</p><p>public class MyServiceBean implements MyService {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    @WebServiceRef(name = "services/MyWebService")</p><p>    private MyWebServicePortType myWebService;</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>in jboss.xml:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><session></p><p>   <ejb-name>MyServiceBean </ejb-name></p><p>   <service-ref></p><p>    <service-ref-name>services/MyWebService</service-ref-name></p><p><span>    <service-qname>{</span><a class="jive-link-external-small" href="http://mycompany.com/MyWebService" target="_blank">http://mycompany.com/MyWebService</a><span>}MyWebService</service-qname></span></p><p>    <handler-chain>jbossws-client-handlers.xml</handler-chain></p><p><span>    <wsdl-override></span><a class="jive-link-external-small" href="http://myserver/myservice?wsdl" target="_blank">http://myserver/myservice?wsdl</a><span></wsdl-override></span></p><p>  </service-ref></p><p></session></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>When I call a method on my EJB which uses the WS, I get:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>java.lang.RuntimeException: Unable to inject jndi dependency: env/services/MyWebService into property com.mycompany.MyServiceBean.myWebService: null</p><p>          at org.jboss.injection.JndiPropertyInjector.lookup(JndiPropertyInjector.java:82)</p><p>          at org.jboss.injection.JndiPropertyInjector.inject(JndiPropertyInjector.java:99)</p><p>          at org.jboss.injection.JndiPropertyInjector.inject(JndiPropertyInjector.java:89)</p><p>          at org.jboss.injection.JndiPropertyInjector.inject(JndiPropertyInjector.java:61)</p><p>          at org.jboss.ejb3.injection.InjectionInvocation.invokeTarget(InjectionInvocation.java:89)</p><p>          at org.jboss.ejb3.injection.InjectionInvocation.invokeNext(InjectionInvocation.java:83)</p><p>          at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67)</p><p>          at org.jboss.ejb3.injection.InjectionInvocation.invokeNext(InjectionInvocation.java:74)</p><p>          at org.jboss.ejb3.EJBContainer.injectBeanContext(EJBContainer.java:1086)</p><p>          at org.jboss.ejb3.pool.AbstractPool.create(AbstractPool.java:83)</p><p>          at org.jboss.ejb3.InfinitePool.get(InfinitePool.java:56)</p><p>          at org.jboss.ejb3.InfinitePool.get(InfinitePool.java:51)</p><p>          at org.jboss.ejb3.pool.ThreadlocalPool.create(ThreadlocalPool.java:53)</p><p>          at org.jboss.ejb3.pool.ThreadlocalPool.get(ThreadlocalPool.java:93)</p><p>          at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:58)</p><p>          at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)</p><p>          at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42)</p><p>          at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)</p><p>          at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)</p><p>          at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)</p><p>          at org.jboss.ejb3.security.RunAsSecurityInterceptorv2.invoke(RunAsSecurityInterceptorv2.java:94)</p><p>          at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)</p><p>          at org.jboss.ejb3.security.RoleBasedAuthorizationInterceptorv2.invoke(RoleBasedAuthorizationInterceptorv2.java:201)</p><p>          at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)</p><p>          at org.jboss.ejb3.security.Ejb3AuthenticationInterceptorv2.invoke(Ejb3AuthenticationInterceptorv2.java:186)</p><p>          at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)</p><p>          at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:41)</p><p>          at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)</p><p>          at org.jboss.ejb3.BlockContainerShutdownInterceptor.invoke(BlockContainerShutdownInterceptor.java:67)</p><p>          at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)</p><p>          at org.jboss.aspects.currentinvocation.CurrentInvocationInterceptor.invoke(CurrentInvocationInterceptor.java:67)</p><p>          at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)</p><p>          at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:176)</p><p>          at org.jboss.ejb3.session.SessionSpecContainer.invoke(SessionSpecContainer.java:216)</p><p>          at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:207)</p><p>          at org.jboss.ejb3.proxy.impl.handler.session.SessionProxyInvocationHandlerBase.invoke(SessionProxyInvocationHandlerBase.java:164)</p><p>          ...</p><p>Caused by: javax.naming.NamingException: Could not dereference object [Root exception is org.jboss.ws.WSException: Cannot create service]</p><p>          at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1504)</p><p>          at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:822)</p><p>          at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:686)</p><p>          at org.jboss.ejb3.JndiUtil.lookup(JndiUtil.java:44)</p><p>          at org.jboss.injection.JndiPropertyInjector.lookup(JndiPropertyInjector.java:75)</p><p>          ... 161 more</p><p>Caused by: org.jboss.ws.WSException: Cannot create service</p><p>          at org.jboss.ws.WSException.rethrow(WSException.java:60)</p><p>          at org.jboss.ws.core.jaxws.client.ServiceObjectFactoryJAXWS.getObjectInstance(ServiceObjectFactoryJAXWS.java:192)</p><p>          at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)</p><p>          at org.jnp.interfaces.NamingContext.getObjectInstance(NamingContext.java:1479)</p><p>          at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1496)</p><p>          ... 165 more</p><p>Caused by: java.lang.NullPointerException</p><p>          at org.jboss.ws.metadata.builder.jaxws.JAXWSMetaDataBuilder.getHandlerChainsMetaData(JAXWSMetaDataBuilder.java:221)</p><p>          at org.jboss.ws.core.jaxws.spi.ServiceDelegateImpl.<init>(ServiceDelegateImpl.java:157)</p><p>          at org.jboss.ws.core.jaxws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:63)</p><p>          at javax.xml.ws.Service.<init>(Service.java:79)</p><p>          at javax.xml.ws.Service.create(Service.java:96)</p><p>          at org.jboss.ws.core.jaxws.client.ServiceObjectFactoryJAXWS.getObjectInstance(ServiceObjectFactoryJAXWS.java:126)</p><p>          ... 168 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>It seems that JAXWSMetaDataBuilder.getHandlerChainsMetaData() receives javax.xml.ws.Service as wsClass parameter.</p><p>To load the handlers-chain file, JAXWSMetaDataBuilder tries to use wsClass.getClassloader().getResource(filename) but the returned classloader is null.</p><p>The comment on Class.getClassloader() says: "Returns the class loader for the class. Some implementations may use <strong>null</strong> to represent the bootstrap class loader. This method will return null in such implementations if this class was loaded by the bootstrap class loader."</p><p>That's normal because javax.xml.ws.Service is part of jdk6+.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I checked all versions of jbossws-native-cores (up to 4+) and all versions seem to do the same thing. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Is there any way to prevent that NPE or is it a bug that can't be avoided?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Regards,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Xavier</p></div>
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