我有一个 JAX-WS Web 服务部署到 Weblogic 12c 服务器。我正在使用 Eclipse 进行开发，并且我有一个 Maven 项目，我在其中创建了 Web 服务。到目前为止，它工作正常。
现在我想给它添加一个安全策略（UsernameToken）。因此，我为 Metro 项目添加了 maven 依赖项：
<dependency>
<groupId>org.glassfish.metro</groupId>
<artifactId>webservices-rt</artifactId>
<version>2.3</version>
</dependency>
但是当我尝试部署时，我得到以下堆栈跟踪：
<30/Out/2013 12H32m WET> <Error> <Deployer> <BEA-149265> <Failure occurred in the execution of deployment request with ID "1383136332821" for task "7". Error is: "
Unable to deploy EJB: webservices-0.0.1-SNAPSHOT.jar from webservices-0.0.1-SNAPSHOT.jar:
[HTTP:101216]Servlet: "WSEE_SERVLET" failed to preload on startup in Web application: "/ServiceImpl".
java.lang.NullPointerException
at com.sun.xml.ws.security.opt.impl.util.CertificateRetriever.getEndpointOROperationalLevelPolicy(CertificateRetriever.java:341)
at com.sun.xml.ws.security.opt.impl.util.CertificateRetriever.checkforEPRIdentity(CertificateRetriever.java:224)
at com.sun.xml.wss.provider.wsit.IdentityEPRExtnContributor.getEPRExtension(IdentityEPRExtnContributor.java:111)
at com.sun.xml.ws.server.WSEndpointImpl.<init>(WSEndpointImpl.java:210)
at weblogic.wsee.jaxws.WLSContainer$WLSEndpointFactory$WLSEndpointImpl.<init>(WLSContainer.java:611)
at weblogic.wsee.jaxws.WLSContainer$WLSEndpointFactory.createEndpoint(WLSContainer.java:564)
at com.sun.xml.ws.server.EndpointFactory.createEndpoint(EndpointFactory.java:263)
at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:546)
at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:525)
at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:601)
at weblogic.wsee.jaxws.JAXWSDeployedServlet.getEndpoint(JAXWSDeployedServlet.java:183)
at weblogic.wsee.jaxws.JAXWSServlet.registerEndpoint(JAXWSServlet.java:139)
at weblogic.wsee.jaxws.JAXWSServlet.init(JAXWSServlet.java:68)
at weblogic.wsee.jaxws.JAXWSDeployedServlet.init(JAXWSDeployedServlet.java:54)
at javax.servlet.GenericServlet.init(GenericServlet.java:240)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:299)
at weblogic.servlet.internal.StubSecurityHelper$ServletInitAction.run(StubSecurityHelper.java:250)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
at weblogic.servlet.internal.StubSecurityHelper.initServletInstance(StubSecurityHelper.java:94)
at weblogic.servlet.internal.StubSecurityHelper.createServlet(StubSecurityHelper.java:82)
at weblogic.servlet.internal.StubLifecycleHelper.createOneInstance(StubLifecycleHelper.java:74)
at weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:60)
at weblogic.servlet.internal.StubLifecycleHelper.<init>(StubLifecycleHelper.java:34)
at weblogic.servlet.internal.ServletStubImpl.initStubLifecycleHelper(ServletStubImpl.java:624)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:565)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:1874)
at weblogic.servlet.internal.WebAppServletContext.loadServletsOnStartup(WebAppServletContext.java:1848)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:1738)
at weblogic.servlet.internal.WebAppServletContext.start(WebAppServletContext.java:2740)
at weblogic.servlet.internal.WebAppModule.startContexts(WebAppModule.java:1704)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:781)
at weblogic.wsee.deploy.WseeWebappModule.activate(WseeWebappModule.java:151)
at weblogic.wsee.deploy.WSEEEjbModule.activate(WSEEEjbModule.java:446)
at weblogic.wsee.deploy.AppDeploymentExtensionFactory.activate(AppDeploymentExtensionFactory.java:112)
at weblogic.wsee.deploy.AppDeploymentExtensionFactory.access$200(AppDeploymentExtensionFactory.java:15)
at weblogic.wsee.deploy.AppDeploymentExtensionFactory$1.activate(AppDeploymentExtensionFactory.java:186)
at weblogic.application.internal.flow.AppDeploymentExtensionFlow.activate(AppDeploymentExtensionFlow.java:37)
at weblogic.application.internal.BaseDeployment$2.next(BaseDeployment.java:729)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:35)
at weblogic.application.internal.BaseDeployment.activate(BaseDeployment.java:258)
at weblogic.application.internal.EarDeployment.activate(EarDeployment.java:61)
at weblogic.application.internal.DeploymentStateChecker.activate(DeploymentStateChecker.java:165)
at weblogic.deploy.internal.targetserver.AppContainerInvoker.activate(AppContainerInvoker.java:79)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.activate(AbstractOperation.java:582)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.activateDeployment(ActivateOperation.java:148)
at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doCommit(ActivateOperation.java:114)
at weblogic.deploy.internal.targetserver.operations.AbstractOperation.commit(AbstractOperation.java:335)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentCommit(DeploymentManager.java:844)
at weblogic.deploy.internal.targetserver.DeploymentManager.activateDeploymentList(DeploymentManager.java:1253)
at weblogic.deploy.internal.targetserver.DeploymentManager.handleCommit(DeploymentManager.java:440)
at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.commit(DeploymentServiceDispatcher.java:163)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doCommitCallback(DeploymentReceiverCallbackDeliverer.java:195)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$100(DeploymentReceiverCallbackDeliverer.java:13)
at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$2.run(DeploymentReceiverCallbackDeliverer.java:68)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:545)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)
"
有人可以对此提出一些想法吗？