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https://issues.apache.org/jira/browse/QPID-8108?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Keith Wall updated QPID-8108:
-----------------------------
Priority: Minor (was: Major)
> [Broker-J] [HTTP] NPE from SaslServlet if request arrives before Broker has
> activated
> -------------------------------------------------------------------------------------
>
> Key: QPID-8108
> URL: https://issues.apache.org/jira/browse/QPID-8108
> Project: Qpid
> Issue Type: Bug
> Components: Broker-J
> Affects Versions: qpid-java-broker-7.0.0, qpid-java-broker-7.0.1
> Reporter: Keith Wall
> Priority: Minor
>
> If HttpPort#absoluteSessionTimeout has a non-zero value, if a request arrives
> whilst the Broker is still starting the following stack trace may result.
> The stack trace is harmless. Once the Broker becomes ready the problem no
> longer occurs.
> {noformat}
> 2018-02-22 18:39:42,929 ERROR [qtp1248732436-35]
> (o.a.q.s.m.p.f.ExceptionHandlingFilter) - Unexpected exception in servlet
> '/service/sasl':
> java.lang.NullPointerException: null
> at
> org.apache.qpid.server.model.AbstractContainer.scheduleTask(AbstractContainer.java:490)
> at
> org.apache.qpid.server.management.plugin.HttpManagementUtil.scheduleAbsoluteSessionTimeout(HttpManagementUtil.java:179)
> at
> org.apache.qpid.server.management.plugin.HttpManagementUtil.saveAuthorisedSubject(HttpManagementUtil.java:171)
> at
> org.apache.qpid.server.management.plugin.servlet.rest.SaslServlet.evaluateSaslResponse(SaslServlet.java:255)
> at
> org.apache.qpid.server.management.plugin.servlet.rest.SaslServlet.doPost(SaslServlet.java:179)
> at
> org.apache.qpid.server.management.plugin.servlet.rest.AbstractServlet.doPost(AbstractServlet.java:140)
> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
> at
> org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
> at
> org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter$1.run(AuthenticationCheckFilter.java:157)
> at
> org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter$1.run(AuthenticationCheckFilter.java:153)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter.doFilterChainAs(AuthenticationCheckFilter.java:152)
> at
> org.apache.qpid.server.management.plugin.filter.AuthenticationCheckFilter.doFilter(AuthenticationCheckFilter.java:122)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
> at
> org.apache.qpid.server.management.plugin.filter.LoggingFilter.doFilter(LoggingFilter.java:63)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
> at
> org.apache.qpid.server.management.plugin.filter.ForbiddingTraceFilter.doFilter(ForbiddingTraceFilter.java:65)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
> at
> org.eclipse.jetty.servlets.CrossOriginFilter.handle(CrossOriginFilter.java:308)
> at
> org.eclipse.jetty.servlets.CrossOriginFilter.doFilter(CrossOriginFilter.java:262)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
> at
> org.apache.qpid.server.management.plugin.filter.ExceptionHandlingFilter.doFilter(ExceptionHandlingFilter.java:59)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:541)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1593)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1239)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:481)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1562)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1141)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
> at org.eclipse.jetty.server.Server.handle(Server.java:564)
> at
> org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
> at
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
> at
> org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110)
> at
> org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:672)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:590)
> at
> org.apache.qpid.server.bytebuffer.QpidByteBufferFactory.lambda$null$0(QpidByteBufferFactory.java:464)
> at java.lang.Thread.run(Thread.java:748)
> 2018-02-22 18:39:42,931 WARN [qtp1248732436-35] (o.e.j.s.HttpChannel) -
> /service/sasl
> {noformat}
> The problem is that the Broker doesn't start the housekeeper until after the
> Broker is activated. This means there is the possibility for HTTP requests
> to arrive between the HTTP becoming active and the Broker have completed
> start-up. If this happens, the NPE results and the Browser gets a 500.
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