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https://issues.apache.org/jira/browse/KNOX-2548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sandor Molnar resolved KNOX-2548.
---------------------------------
Resolution: Fixed
> ConcurrentModificationException while verifying JWT token
> ---------------------------------------------------------
>
> Key: KNOX-2548
> URL: https://issues.apache.org/jira/browse/KNOX-2548
> Project: Apache Knox
> Issue Type: Bug
> Components: Server
> Affects Versions: 1.5.0
> Reporter: Sandor Molnar
> Assignee: Sandor Molnar
> Priority: Critical
> Fix For: 1.6.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> {noformat}
> 2020-11-17 07:59:06,189 ERROR knox.gateway
> (AbstractGatewayFilter.java:doFilter(60)) - Failed to execute filter:
> javax.servlet.ServletException: java.util.ConcurrentModificationException
> 2020-11-17 07:59:06,189 ERROR knox.gateway (GatewayFilter.java:doFilter(169))
> - Gateway processing failed: javax.servlet.ServletException:
> java.util.ConcurrentModificationException
> javax.servlet.ServletException: java.util.ConcurrentModificationException
> at
> org.apache.knox.gateway.GatewayFilter$Holder.getInstance(GatewayFilter.java:397)
> at
> org.apache.knox.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:363)
> at
> org.apache.knox.gateway.GatewayFilter$Chain.doFilter(GatewayFilter.java:263)
> ...
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
> at
> org.apache.knox.gateway.filter.CorrelationHandler.handle(CorrelationHandler.java:41)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
> at
> org.apache.knox.gateway.filter.PortMappingHelperHandler.handle(PortMappingHelperHandler.java:106)
> at
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
> at org.eclipse.jetty.server.Server.handle(Server.java:501)
> at
> org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
> at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:556)
> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273)
> at
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
> at
> org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:540)
> at
> org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:395)
> at
> org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:161)
> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
> at
> org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
> at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:375)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
> at java.lang.Thread.run(Thread.java:748)
> ...
> Caused by: java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextNode(HashMap.java:1445)
> at java.util.HashMap$KeyIterator.next(HashMap.java:1469)
> at java.util.Collections$3.nextElement(Collections.java:5270)
> at
> org.apache.knox.gateway.hadoopauth.filter.HadoopAuthFilter.getConfiguration(HadoopAuthFilter.java:262)
> at
> org.apache.knox.gateway.hadoopauth.filter.HadoopAuthFilter.getConfiguration(HadoopAuthFilter.java:92)
> at
> org.apache.hadoop.security.authentication.server.AuthenticationFilter.init(AuthenticationFilter.java:160)
> at
> org.apache.knox.gateway.hadoopauth.filter.HadoopAuthFilter.init(HadoopAuthFilter.java:125)
> at
> org.apache.knox.gateway.GatewayFilter$Holder.getInstance(GatewayFilter.java:394)
> ... 57 more
> {noformat}
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