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https://issues.apache.org/jira/browse/ARTEMIS-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16435541#comment-16435541
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Justin Bertram commented on ARTEMIS-1804:
-----------------------------------------

Can you provide steps to reproduce?

> NPE in recent snapshot
> ----------------------
>
>                 Key: ARTEMIS-1804
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1804
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>            Reporter: Lionel Cons
>            Priority: Major
>
> Running some tests againstĀ {{artemis-2.6.0-20180410.175207-36}}, I noticed 
> the broker logged several NPEs looking like:
> {code:java}
> 2018-04-12 14:19:15,097 WARN  [io.netty.handler.ssl.SslHandler] [id: 
> 0xc8c4c74d, L:/xxx:yyy ! R:/2001:1458:202:227:0:0:100:6%0:32802] flush() 
> raised a masked exception.: java.lang.NullPointerException
>       at io.netty.handler.ssl.SslHandler.wrapAndFlush(SslHandler.java:742) 
> [netty-all-4.1.22.Final.jar:4.1.22.Final]
>       at io.netty.handler.ssl.SslHandler.flush(SslHandler.java:734) 
> [netty-all-4.1.22.Final.jar:4.1.22.Final]
>       at io.netty.handler.ssl.SslHandler.flush(SslHandler.java:1595) 
> [netty-all-4.1.22.Final.jar:4.1.22.Final]
>       at io.netty.handler.ssl.SslHandler.access$600(SslHandler.java:165) 
> [netty-all-4.1.22.Final.jar:4.1.22.Final]
>       at io.netty.handler.ssl.SslHandler$1.run(SslHandler.java:631) 
> [netty-all-4.1.22.Final.jar:4.1.22.Final]
>       at 
> io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163)
>  [netty-all-4.1.22.Final.jar:4.1.22.Final]
>       at 
> io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404)
>  [netty-all-4.1.22.Final.jar:4.1.22.Final]
>       at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:309) 
> [netty-all-4.1.22.Final.jar:4.1.22.Final]
>       at 
> io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:886)
>  [netty-all-4.1.22.Final.jar:4.1.22.Final]
>       at 
> org.apache.activemq.artemis.utils.ActiveMQThreadFactory$1.run(ActiveMQThreadFactory.java:118)
>  [artemis-commons-2.6.0-SNAPSHOT.jar:2.6.0-SNAPSHOT]
> {code}



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