NPE in org.jboss.wsf.stack.cxf.interceptor.HandlerAuthInterceptor

java.lang.NullPointerException
at org.jboss.wsf.stack.cxf.interceptor.HandlerAuthInterceptor$JBossWSHandlerChainInvoker.checkAuthorization(HandlerAuthInterceptor.java:150)
at org.jboss.wsf.stack.cxf.interceptor.HandlerAuthInterceptor$JBossWSHandlerChainInvoker.invokeProtocolHandlers(HandlerAuthInterceptor.java:110)
at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessageInternal(SOAPHandlerInterceptor.java:169)
at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessage(SOAPHandlerInterceptor.java:124)
at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessage(SOAPHandlerInterceptor.java:71)
at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272)
at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:239)
at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:93)
at org.jboss.wsf.stack.cxf.transport.ServletHelper.callRequestHandler(ServletHelper.java:143)
at org.jboss.wsf.stack.cxf.CXFServletExt.invoke(CXFServletExt.java:87)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:286)
at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:206)
[...]