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https://issues.apache.org/jira/browse/ARTEMIS-5605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Clebert Suconic closed ARTEMIS-5605.
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> AMQP Bridge and Federation receivers can NPE if closed before remote Attach
> arrives
> -----------------------------------------------------------------------------------
>
> Key: ARTEMIS-5605
> URL: https://issues.apache.org/jira/browse/ARTEMIS-5605
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: AMQP
> Affects Versions: 2.42.0
> Reporter: Timothy A. Bish
> Assignee: Timothy A. Bish
> Priority: Minor
> Labels: pull-request-available
> Fix For: 2.43.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> In a rare case if the bridge or federation receiver is closed on the server
> before the remote peer sends the remote attach an NPE can result because the
> wrong view of the proton Receiver instance is used to check remote desired
> capabilities which can be null after the local close is called.
> {code:java}
> [Thread-0 (ActiveMQ-client-netty-threads)] 21:36:36,119 WARN
> [org.apache.activemq.artemis.protocol.amqp.connect.AMQPBrokerConnection]
> Cannot invoke
> "org.apache.qpid.proton.engine.Link.getRemoteDesiredCapabilities()" because
> "link" is null
> java.lang.NullPointerException: Cannot invoke
> "org.apache.qpid.proton.engine.Link.getRemoteDesiredCapabilities()" because
> "link" is null
> at
> org.apache.activemq.artemis.protocol.amqp.proton.AmqpSupport.verifyDesiredCapability(AmqpSupport.java:252)
> at
> org.apache.activemq.artemis.protocol.amqp.connect.bridge.AMQPBridgeFromQueueReceiver$AMQPBridgeQueueDeliveryReceiver.initialize(AMQPBridgeFromQueueReceiver.java:304)
> at
> org.apache.activemq.artemis.protocol.amqp.proton.AMQPSessionContext.addReceiver(AMQPSessionContext.java:498)
> at
> org.apache.activemq.artemis.protocol.amqp.connect.bridge.AMQPBridgeFromQueueReceiver.lambda$doCreateReceiver$2(AMQPBridgeFromQueueReceiver.java:174)
> at
> org.apache.activemq.artemis.protocol.amqp.proton.AMQPConnectionContext.remoteLinkOpened(AMQPConnectionContext.java:416)
> at
> org.apache.activemq.artemis.protocol.amqp.proton.AMQPConnectionContext.onRemoteOpen(AMQPConnectionContext.java:884)
> at
> org.apache.activemq.artemis.protocol.amqp.proton.handler.Events.dispatch(Events.java:68)
> at
> org.apache.activemq.artemis.protocol.amqp.proton.handler.ProtonHandler.dispatch(ProtonHandler.java:584)
> at
> org.apache.activemq.artemis.protocol.amqp.proton.handler.ProtonHandler.handleFlush(ProtonHandler.java:390)
> at
> org.apache.activemq.artemis.protocol.amqp.proton.handler.ProtonHandler.flush(ProtonHandler.java:375)
> at
> org.apache.activemq.artemis.protocol.amqp.proton.handler.ProtonHandler.inputBuffer(ProtonHandler.java:333)
> at
> org.apache.activemq.artemis.protocol.amqp.connect.AMQPBrokerConnectionChannelHandler.channelRead(AMQPBrokerConnectionChannelHandler.java:81)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
> at
> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412)
> at
> io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1357)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420)
> at
> io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:868)
> at
> io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:799)
> at
> io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:501)
> at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:399)
> at
> io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:998)
> at
> io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
> at
> org.apache.activemq.artemis.utils.ActiveMQThreadFactory$1.run(ActiveMQThreadFactory.java:120)
> {code}
>
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