发布axis2时出现如下错误，实在没读懂

[zhuaiqilai]

- Error in schema generating null
java.lang.NullPointerException
at org.apache.ws.java2wsdl.Java2WSDLUtils.namespaceFromClassName(Java2WSDLUtils.java:51)
at org.apache.ws.java2wsdl.Java2WSDLUtils.schemaNamespaceFromClassName(Java2WSDLUtils.java:7
at org.apache.ws.java2wsdl.SchemaGenerator.<init>(SchemaGenerator.java:77)
at org.apache.axis2.deployment.util.Utils.fillAxisService(Utils.java:209)
at org.apache.axis2.deployment.ServiceBuilder.populateService(ServiceBuilder.java:149)
at org.apache.axis2.deployment.repository.util.ArchiveReader.buildServiceGroup(ArchiveReader
at org.apache.axis2.deployment.repository.util.ArchiveReader.processServiceGroup(ArchiveRead
at org.apache.axis2.deployment.DeploymentEngine.doDeploy(DeploymentEngine.java:620)
at org.apache.axis2.deployment.repository.util.WSInfoList.update(WSInfoList.java:195)
at org.apache.axis2.deployment.RepositoryListener.update(RepositoryListener.java:207)
at org.apache.axis2.deployment.RepositoryListener.checkServices(RepositoryListener.java:155)
at org.apache.axis2.deployment.DeploymentEngine.loadServices(DeploymentEngine.java:91)
at org.apache.axis2.deployment.WarBasedAxisConfigurator.loadServices(WarBasedAxisConfigurato
at org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(Configura
at org.apache.axis2.transport.http.AxisServlet.initConfigContext(AxisServlet.java:213)
at org.apache.axis2.transport.http.AxisServlet.init(AxisServlet.java:182)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1206)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1026)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4421)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4734)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)

[zhuaiqilai]

这个类是人家的包里面的类,我看不到的.问题已经解决了,是版本问题,也就是包的问题.缺少包

[坚持2012]

action的参数又没有传？

[xianwangkai]

java.lang.NullPointerException at org.apache.ws.java2wsdl.Java2WSDLUtils.namespaceFromClassName(Java2WSDLUtils.java:51) 该文还是从这个类开始查吧，直接看，看不出问题！