Major Description
I saw this while hitting Knox repeatedly during topology redeploys/restarts. There should never be a NPE.
2020-03-17 15:13:08,878 ERROR knox.gateway (AbstractGatewayFilter.java:doFilter(60)) - Failed to execute filter: javax.servlet.ServletException: java.lang.NullPointerException 2020-03-17 15:13:08,878 ERROR knox.gateway (AbstractGatewayFilter.java:doFilter(60)) - Failed to execute filter: javax.servlet.ServletException: java.lang.NullPointerException 2020-03-17 15:13:08,878 ERROR knox.gateway (GatewayFilter.java:doFilter(169)) - Gateway processing failed: javax.servlet.ServletException: java.lang.NullPointerException javax.servlet.ServletException: java.lang.NullPointerException at org.apache.shiro.web.servlet.AdviceFilter.cleanup(AdviceFilter.java:196) at org.apache.shiro.web.filter.authc.AuthenticatingFilter.cleanup(AuthenticatingFilter.java:155) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:148) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.knox.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:349) at org.apache.knox.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:263) at org.apache.knox.gateway.filter.ResponseCookieFilter.doFilter(ResponseCookieFilter.java:49) at org.apache.knox.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:58) at org.apache.knox.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:349) at org.apache.knox.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:263) at org.apache.knox.gateway.filter.XForwardedHeaderFilter.doFilter(XForwardedHeaderFilter.java:50) at org.apache.knox.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:58) at org.apache.knox.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:349) at org.apache.knox.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:263) at org.apache.knox.gateway.GatewayFilter.doFilter(GatewayFilter.java:167) at org.apache.knox.gateway.GatewayFilter.doFilter(GatewayFilter.java:92) at org.apache.knox.gateway.GatewayServlet.service(GatewayServlet.java:135) at org.eclipse.jetty.servlet.ServletHolder$NotAsyncServlet.service(ServletHolder.java:1386) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:755) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1617) at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:226) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:545) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:590) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1607) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1297) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:485) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1577) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1212) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:221) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.apache.knox.gateway.trace.TraceHandler.handle(TraceHandler.java:51) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.apache.knox.gateway.filter.CorrelationHandler.handle(CorrelationHandler.java:41) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.apache.knox.gateway.filter.PortMappingHelperHandler.handle(PortMappingHelperHandler.java:106) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.websocket.server.WebSocketHandler.handle(WebSocketHandler.java:115) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.Server.handle(Server.java:500) at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:270) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:543) at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:398) at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:161) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:388) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.NullPointerException at org.apache.shiro.mgt.SessionsSecurityManager.start(SessionsSecurityManager.java:152) at org.apache.shiro.subject.support.DelegatingSubject.getSession(DelegatingSubject.java:340) at org.apache.shiro.subject.support.DelegatingSubject.getSession(DelegatingSubject.java:316) at org.apache.shiro.mgt.DefaultSubjectDAO.mergePrincipals(DefaultSubjectDAO.java:207) at org.apache.shiro.mgt.DefaultSubjectDAO.saveToSession(DefaultSubjectDAO.java:165) at org.apache.shiro.mgt.DefaultSubjectDAO.save(DefaultSubjectDAO.java:146) at org.apache.shiro.mgt.DefaultSecurityManager.save(DefaultSecurityManager.java:388) at org.apache.shiro.mgt.DefaultSecurityManager.createSubject(DefaultSecurityManager.java:355) at org.apache.shiro.mgt.DefaultSecurityManager.createSubject(DefaultSecurityManager.java:188) at org.apache.shiro.mgt.DefaultSecurityManager.login(DefaultSecurityManager.java:288) at org.apache.shiro.subject.support.DelegatingSubject.login(DelegatingSubject.java:260) at org.apache.shiro.web.filter.authc.AuthenticatingFilter.executeLogin(AuthenticatingFilter.java:53) at org.apache.shiro.web.filter.authc.BasicHttpAuthenticationFilter.onAccessDenied(BasicHttpAuthenticationFilter.java:245) at org.apache.shiro.web.filter.AccessControlFilter.onAccessDenied(AccessControlFilter.java:133) at org.apache.shiro.web.filter.AccessControlFilter.onPreHandle(AccessControlFilter.java:162) at org.apache.shiro.web.filter.PathMatchingFilter.isFilterChainContinued(PathMatchingFilter.java:203) at org.apache.shiro.web.filter.PathMatchingFilter.preHandle(PathMatchingFilter.java:178) at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:131) ... 72 more
Attachments
Issue Links
- is caused by
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SHIRO-841 NullPointerException from SessionsSecurityManager.start()
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- Resolved
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