[jira] [Created] (ACTIVEMQ6-55) lack of link context when processing AMQP detach response results in NPE

["Robbie Gemmell (JIRA)" <ji...@apache.org>]

Robbie Gemmell created ACTIVEMQ6-55:
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             Summary: lack of link context when processing AMQP detach response results in NPE
                 Key: ACTIVEMQ6-55
                 URL: https://issues.apache.org/jira/browse/ACTIVEMQ6-55
             Project: Apache ActiveMQ 6
          Issue Type: Bug
    Affects Versions: 6.0.0
            Reporter: Robbie Gemmell


When an AMQP 1.0 link (producer/consumer) is detached/closed by the broker with an error, clients must send a response Detach frame. If the link context was not set before the error occurred, this leads to the broker experiencing an NPE while processing the reply.

{noformat}
java.lang.NullPointerException
	at org.proton.plug.context.AbstractConnectionContext$LocalListener.onRemoteClose(AbstractConnectionContext.java:258)
	at org.proton.plug.handler.Events.dispatch(Events.java:89)
	at org.proton.plug.handler.impl.ProtonHandlerImpl.dispatch(ProtonHandlerImpl.java:399)
	at org.proton.plug.handler.impl.ProtonHandlerImpl.flush(ProtonHandlerImpl.java:298)
	at org.proton.plug.handler.impl.ProtonHandlerImpl.inputBuffer(ProtonHandlerImpl.java:178)
	at org.proton.plug.context.AbstractConnectionContext.inputBuffer(AbstractConnectionContext.java:71)
	at org.apache.activemq.core.protocol.proton.ActiveMQProtonRemotingConnection.bufferReceived(ActiveMQProtonRemotingConnection.java:140)
	at org.apache.activemq.core.remoting.server.impl.RemotingServiceImpl$DelegatingBufferHandler.bufferReceived(RemotingServiceImpl.java:665)
	at org.apache.activemq.core.remoting.impl.netty.ActiveMQChannelHandler.channelRead(ActiveMQChannelHandler.java:77)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:332)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:318)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:125)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:507)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:464)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:378)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:350)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
	at java.lang.Thread.run(Thread.java:745)
{noformat}



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