I having trouble   create the web service   with any complex return type.
I tried jaxb it did not work , now I am trying
org.apache.cxf.aegis.databinding.AegisDatabinding  

still problems here the exception I get

java.lang.UnsupportedOperationException: This parser does not support
specification "null" version "null"
        at
javax.xml.parsers.DocumentBuilderFactory.setSchema(DocumentBuilderFactory.java:561)
        at
org.apache.cxf.aegis.type.XMLTypeCreator.<clinit>(XMLTypeCreator.java:121)
        at
org.apache.cxf.aegis.AegisContext.createRootTypeCreator(AegisContext.java:119)
        at
org.apache.cxf.aegis.AegisContext.createTypeCreator(AegisContext.java:108)
        at org.apache.cxf.aegis.AegisContext.initialize(AegisContext.java:150)
        at
org.apache.cxf.aegis.databinding.AegisDatabinding.initialize(AegisDatabinding.java:261)
        at
org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:467)
        at
org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.buildServiceFromClass(JaxWsServiceFactoryBean.java:550)
        at
org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:530)
        at
org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:278)
        at
org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.create(JaxWsServiceFactoryBean.java:178)
        at
org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:100)
        at
org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:105)
        at
org.apache.cxf.jaxws.JaxWsServerFactoryBean.create(JaxWsServerFactoryBean.java:167)
        at org.apache.cxf.jaxws.EndpointImpl.getServer(EndpointImpl.java:346)
        at org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:259)
        at org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:209)
        at org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:404)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1414)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1375)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
        at java.security.AccessController.doPrivileged(Native Method)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
        at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
        at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
        at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
        at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
        at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
        at
org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
        at
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
        at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
        at
org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:579)
        at org.mortbay.jetty.servlet.Context.startContext(Context.java:156)
        at
org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1215)
        at
org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:548)
        at 
org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:348)
        at
org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart(Jetty6PluginWebAppContext.java:107)
        at 
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at
org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:151)
        at
org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)
        at 
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at
org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:151)
        at 
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
        at org.mortbay.jetty.Server.doStart(Server.java:222)
        at 
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at
org.mortbay.jetty.plugin.Jetty6PluginServer.start(Jetty6PluginServer.java:132)
        at
org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:384)
        at
org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:320)
        at
org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute(AbstractJettyRunMojo.java:205)
        at 
org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java:184)
        at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:483)
        at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:678)
        at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:553)
        at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:523)
        at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:371)
        at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:332)
        at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:181)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:356)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:137)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:356)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
        at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
        at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
        at org.codehaus.classworlds.Launcher.main(Launcher.java:375)


please tell me what causes this issue ?
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