[infinispan-issues] [JBoss JIRA] (ISPN-6442) NullPointerException in HotRodDecoder.channelActive

[Dan Berindei (JIRA)]

Dan Berindei created ISPN-6442:
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             Summary: NullPointerException in HotRodDecoder.channelActive
                 Key: ISPN-6442
                 URL: https://issues.jboss.org/browse/ISPN-6442
             Project: Infinispan
          Issue Type: Bug
          Components: Server, Test Suite - Server
    Affects Versions: 8.2.0.Final
            Reporter: Dan Berindei
            Priority: Critical
             Fix For: 9.0.0.Alpha1


{{HotRodServer.startInternal}} first starts the Netty transport (with {{super.startInternal()}}) and only then initializes the {{clientListenerRegistry}} field. That means the server can accept a request before {{clientListenerRegistry}} is initialized, causing a NPE in {{HotRodDecoder.channelActive()}}.

Visible as random failures in {{DistTopologyChangeUnderLoadSingleOwnerTest.testRestartServerWhilePutting}}:

{noformat}
00:10:54,718 ERROR (HotRodServerWorker-408-1) [CacheDecodeContext] ISPN005009: Unexpected error before any request parameters read java.lang.NullPointerException
    at org.infinispan.server.hotrod.HotRodDecoder.channelActive(HotRodDecoder.scala:284)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelActive(AbstractChannelHandlerContext.java:183)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelActive(AbstractChannelHandlerContext.java:169)
    at io.netty.channel.DefaultChannelPipeline.fireChannelActive(DefaultChannelPipeline.java:817)
    at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:453)
    at io.netty.channel.AbstractChannel$AbstractUnsafe.access$100(AbstractChannel.java:377)
    at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:423)
    at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:380)

java.util.concurrent.ExecutionException: org.infinispan.client.hotrod.exceptions.HotRodClientException:Request for messageId=46498 returned server error (status=0x85): java.lang.NullPointerException
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:192)
    at org.infinispan.client.hotrod.DistTopologyChangeUnderLoadSingleOwnerTest.testRestartServerWhilePutting(DistTopologyChangeUnderLoadSingleOwnerTest.java:64)
Caused by: org.infinispan.client.hotrod.exceptions.HotRodClientException:Request for messageId=46498 returned server error (status=0x85): java.lang.NullPointerException
    at org.infinispan.client.hotrod.impl.protocol.Codec20.checkForErrorsInResponseStatus(Codec20.java:343)
    at org.infinispan.client.hotrod.impl.protocol.Codec20.readPartialHeader(Codec20.java:132)
    at org.infinispan.client.hotrod.impl.protocol.Codec20.readHeader(Codec20.java:118)
    at org.infinispan.client.hotrod.impl.operations.HotRodOperation.readHeaderAndValidate(HotRodOperation.java:56)
    at org.infinispan.client.hotrod.impl.operations.AbstractKeyValueOperation.sendPutOperation(AbstractKeyValueOperation.java:56)
    at org.infinispan.client.hotrod.impl.operations.PutOperation.executeOperation(PutOperation.java:32)
    at org.infinispan.client.hotrod.impl.operations.RetryOnFailureOperation.execute(RetryOnFailureOperation.java:54)
    at org.infinispan.client.hotrod.impl.RemoteCacheImpl.put(RemoteCacheImpl.java:268)
    at org.infinispan.client.hotrod.impl.RemoteCacheSupport.put(RemoteCacheSupport.java:79)
    at org.infinispan.client.hotrod.DistTopologyChangeUnderLoadSingleOwnerTest$PutHammer.call(DistTopologyChangeUnderLoadSingleOwnerTest.java:76)
    at org.infinispan.client.hotrod.DistTopologyChangeUnderLoadSingleOwnerTest$PutHammer.call(DistTopologyChangeUnderLoadSingleOwnerTest.java:67)
    at org.infinispan.test.AbstractInfinispanTest$LoggingCallable.call(AbstractInfinispanTest.java:478)
    ... 4 more
{noformat}



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