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https://issues.apache.org/jira/browse/CXF-6600?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Colm O hEigeartaigh closed CXF-6600.
------------------------------------

> Sudden repeating NPE on token request by STSClient
> --------------------------------------------------
>
>                 Key: CXF-6600
>                 URL: https://issues.apache.org/jira/browse/CXF-6600
>             Project: CXF
>          Issue Type: Bug
>          Components: STS
>    Affects Versions: 3.0.4
>            Reporter: Andreas Vallen
>            Assignee: Colm O hEigeartaigh
>             Fix For: 3.0.7, 3.1.4
>
>
> After our application has been running for a few days it starts experiencing 
> repeated NullPointerExceptions on each invocation of a CXF web service client 
> proxy when it contacts the STS, see stacktraces below.
> The fediz-based system is set-up similarly to the wsclientWebapp sample from 
> the fediz distribution: with WS-Federation SSO and delegated Web Service 
> access via an issued-token WS-Trust policy. 
> The system is based on fediz 1.2.0, CXF 3.0.4, Windows Server 2008 R2, java 
> 8u51, tomcat 8.0.23.
> The following NPE repeatedly shows on each web service invocation once this 
> condition starts. There is no discernible cause of this. A tomcat restart 
> fixes it.
> {code}
> 2015-09-18 14:09:30,384Z WARN  [http-apr-443-exec-60] - 
> o.a.cxf.phase.PhaseInterceptorChain      : Interceptor for 
> {http://service.ecs.net/}ECSServiceService#{http://service.ecs. net/}GetHome 
> has thrown exception, unwinding now
> java.lang.NullPointerException: null
>       at com.sun.xml.bind.unmarshaller.DOMScanner.visit(DOMScanner.java:274)
>       at com.sun.xml.bind.unmarshaller.DOMScanner.visit(DOMScanner.java:250)
>       at com.sun.xml.bind.unmarshaller.DOMScanner.visit(DOMScanner.java:281)
>       at com.sun.xml.bind.unmarshaller.DOMScanner.visit(DOMScanner.java:250)
>       at com.sun.xml.bind.unmarshaller.DOMScanner.scan(DOMScanner.java:127)
>       at 
> com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:369)
>       at 
> com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:348)
>       at 
> org.apache.cxf.ws.addressing.VersionTransformer.parseEndpointReference(VersionTransformer.java:439)
>       at 
> org.apache.cxf.ws.security.trust.STSUtils.getClient(STSUtils.java:118)
>       at 
> org.apache.cxf.ws.security.policy.interceptors.IssuedTokenInterceptorProvider$IssuedTokenOutInterceptor.issueToken(IssuedTokenInterceptorProvider.java:485)
>       at 
> org.apache.cxf.ws.security.policy.interceptors.IssuedTokenInterceptorProvider$IssuedTokenOutInterceptor.handleMessage(IssuedTokenInterceptorProvider.java:162)
>       at 
> org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
>       at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:516)
>       at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:425)
>       at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:326)
>       at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:279)
>       at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:96)
>       at 
> org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:138)
>       at com.sun.proxy.$Proxy364.getHome(Unknown Source)
>       at net.ecs.unifyweb.HomeResource.getWelcome(HomeResource.java:129)
>       at sun.reflect.GeneratedMethodAccessor401.invoke(Unknown Source)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:497)
>       at 
> org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:181)
>       at 
> org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:97)
>       at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:200)
>       at net.ecs.unifyweb.AntiXSSInvoker.invoke(AntiXSSInvoker.java:58)
>       at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:99)
>       at 
> org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:59)
>       at 
> org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:96)
>       at 
> org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
>       at 
> org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
>       at 
> org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:251)
>       at 
> org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:234)
>       at 
> org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:208)
>       at 
> org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:160)
>       at 
> org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:171)
>       at 
> org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:293)
>       at 
> org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:217)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
> {code}



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