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java.lang.NullPointerException: 	at org.springframework.security.access.vote.RoleVoter.vote(RoleVoter.java:103)	at org.codehaus.groovy.grails.plugins.springsecurity.AuthenticatedVetoableDecisionManager.checkOtherVoters(AuthenticatedVetoableDecisionManager.java:90)	at org.codehaus.groovy.grails.plugins.springsecurity.AuthenticatedVetoableDecisionManager.decide(AuthenticatedVetoableDecisionManager.java:44)	at org.springframework.security.access.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:203)	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:106)	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355)	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355)	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355)	at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:119)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355)	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355)	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:188)	at org.codehaus.groovy.grails.plugins.springsecurity.RequestHolderAuthenticationFilter.doFilter(RequestHolderAuthenticationFilter.java:40)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355)	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:188)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355)	at org.codehaus.groovy.grails.plugins.springsecurity.MutableLogoutFilter.doFilter(MutableLogoutFilter.java:79)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355)	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79)	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:355)	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:149)	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.codehaus.groovy.grails.web.servlet.filter.GrailsReloadServletFilter.doFilterInternal(GrailsReloadServletFilter.java:104)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.codehaus.groovy.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal(GrailsWebRequestFilter.java:67)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.codehaus.groovy.grails.web.filters.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:66)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:106)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:106)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)	at java.lang.Thread.run(Thread.java:619)