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https://issues.apache.org/jira/browse/ARTEMIS-1743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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clebert suconic closed ARTEMIS-1743.
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> NPE in server log when Artemis trace logging is enabled
> -------------------------------------------------------
>
> Key: ARTEMIS-1743
> URL: https://issues.apache.org/jira/browse/ARTEMIS-1743
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 2.5.0
> Reporter: Miroslav Novak
> Assignee: Stanislav Knot
> Priority: Major
> Fix For: 2.5.1
>
>
> Artemis master (95b7438e7a7661692d5b78be944d05e254df9067) contains issue when
> trace logging is enabled.
> If large message is sent and Artemis trace logs are enabled then following
> NPE is logged in server log:
> {code}
> 09:42:14,005 WARN
> [org.apache.activemq.artemis.core.message.impl.CoreMessage] (default I/O-9)
> Error creating String for message: : java.lang.NullPointerException
> at
> org.apache.activemq.artemis.core.message.impl.CoreMessage.encode(CoreMessage.java:584)
> at
> org.apache.activemq.artemis.core.message.impl.CoreMessage.checkEncode(CoreMessage.java:248)
> at
> org.apache.activemq.artemis.core.message.impl.CoreMessage.getEncodeSize(CoreMessage.java:647)
> at
> org.apache.activemq.artemis.core.message.impl.CoreMessage.getPersistentSize(CoreMessage.java:1157)
> at
> org.apache.activemq.artemis.core.message.impl.CoreMessage.toString(CoreMessage.java:1132)
> at java.lang.String.valueOf(String.java:2994) [rt.jar:1.8.0_131]
> at java.lang.StringBuilder.append(StringBuilder.java:131)
> [rt.jar:1.8.0_131]
> at
> org.apache.activemq.artemis.core.protocol.core.impl.wireformat.SessionSendLargeMessage.toString(SessionSendLargeMessage.java:73)
> at java.lang.String.valueOf(String.java:2994) [rt.jar:1.8.0_131]
> at java.lang.StringBuilder.append(StringBuilder.java:131)
> [rt.jar:1.8.0_131]
> at
> org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl.bufferReceived(RemotingConnectionImpl.java:368)
> at
> org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl$DelegatingBufferHandler.bufferReceived(RemotingServiceImpl.java:646)
> at
> org.apache.activemq.artemis.core.remoting.impl.netty.ActiveMQChannelHandler.channelRead(ActiveMQChannelHandler.java:68)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
> at
> io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310)
> at
> io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:297)
> at
> io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:413)
> at
> io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:265)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
> at
> io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1359)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
> at
> io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:935)
> at
> org.xnio.netty.transport.AbstractXnioSocketChannel$ReadListener.handleEvent(AbstractXnioSocketChannel.java:443)
> at
> org.xnio.netty.transport.AbstractXnioSocketChannel$ReadListener.handleEvent(AbstractXnioSocketChannel.java:379)
> at
> org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
> [xnio-api-3.6.1.Final.jar:3.6.1.Final]
> at
> org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
> [xnio-api-3.6.1.Final.jar:3.6.1.Final]
> at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89)
> [xnio-nio-3.6.1.Final.jar:3.6.1.Final]
> at org.xnio.nio.WorkerThread.run(WorkerThread.java:591)
> [xnio-nio-3.6.1.Final.jar:3.6.1.Final]
> {code}
> Currently it appears that it has not impact on functionality but NPEs are
> flooding server log.
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