NPE with Netty

[survivant]

12:40:00.296 [New I/O client worker #1-1] DEBUG c.n.h.c.p.n.NettyAsyncHttpProvider - Closing Channel [id: 0x01a62c31, /127.0.0.1:3865 => localhost/127.0.0.1:8080]
12:40:00.296 [New I/O client worker #1-1] DEBUG c.n.h.c.p.n.NettyAsyncHttpProvider - Channel Closed: [id: 0x01a62c31, /127.0.0.1:3865 :> localhost/127.0.0.1:8080] with attachment com.ning.http.client.providers.netty.NettyAsyncHttpProvider$DiscardEvent@1fe1feb
12:40:15.232 [New I/O client worker #1-2] DEBUG c.n.h.c.p.n.NettyAsyncHttpProvider - Unexpected I/O exception on channel [id: 0x01f6ba0f, /127.0.0.1:3870 => localhost/127.0.0.1:8080]
java.lang.NullPointerException: null
at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.isContentAlwaysEmpty(HttpClientCodec.java:124) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpMessageDecoder.readHeaders(HttpMessageDecoder.java:450) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:191) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:108) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:96) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:465) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:438) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec.handleUpstream(HttpClientCodec.java:72) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:343) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:274) ~[netty-3.3.1.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:194) ~[netty-3.3.1.Final.jar:na]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) [na:1.6.0_07]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.6.0_07]
at java.lang.Thread.run(Unknown Source) [na:1.6.0_07]

[survivant]

I posted a usecase here : #107 (comment)

[slandelle]

Have you tried upgrading to Netty 3.4.4.Final?

[survivant]

I put 3.4.4.Final in my junit test.

I think it's just DEBUG info.

08:41:58.331 [New I/O worker #1] DEBUG c.n.h.c.p.n.NettyAsyncHttpProvider - Unexpected I/O exception on channel [id: 0x006ac461, /127.0.0.1:4249 => localhost/127.0.0.1:8080]
java.lang.NullPointerException: null
at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.isContentAlwaysEmpty(HttpClientCodec.java:176) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpMessageDecoder.readHeaders(HttpMessageDecoder.java:462) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:191) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:140) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:128) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:548) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:445) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec.handleUpstream(HttpClientCodec.java:92) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:94) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.processSelectedKeys(AbstractNioWorker.java:372) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:246) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:38) ~[netty-3.4.4.Final.jar:na]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) [na:1.6.0_07]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.6.0_07]
at java.lang.Thread.run(Unknown Source) [na:1.6.0_07]
08:41:58.331 [New I/O worker #1] DEBUG c.n.h.c.p.n.NettyAsyncHttpProvider - Closing Channel [id: 0x006ac461, /127.0.0.1:4249 => localhost/127.0.0.1:8080]
08:41:58.347 [New I/O worker #1] DEBUG c.n.h.c.p.n.NettyAsyncHttpProvider - Unexpected I/O exception on channel [id: 0x006ac461, /127.0.0.1:4249 :> localhost/127.0.0.1:8080]
java.lang.IllegalArgumentException: name contains non-ascii character: ???13???6
at org.jboss.netty.handler.codec.http.HttpCodecUtil.validateHeaderName(HttpCodecUtil.java:80) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpHeaders.validateHeaderName(HttpHeaders.java:809) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpHeaders.addHeader(HttpHeaders.java:813) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.DefaultHttpMessage.addHeader(DefaultHttpMessage.java:44) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpMessageDecoder.readHeaders(HttpMessageDecoder.java:444) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:191) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:140) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:128) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:548) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.cleanup(ReplayingDecoder.java:622) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.channelDisconnected(ReplayingDecoder.java:527) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec.handleUpstream(HttpClientCodec.java:92) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.Channels.fireChannelDisconnected(Channels.java:399) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.close(AbstractNioWorker.java:616) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink.eventSunk(NioClientSocketPipelineSink.java:90) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream(OneToOneEncoder.java:55) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec.handleDownstream(HttpClientCodec.java:97) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleDownstream(ChunkedWriteHandler.java:108) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.Channels.close(Channels.java:821) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.AbstractChannel.close(AbstractChannel.java:194) ~[netty-3.4.4.Final.jar:na]
at com.ning.http.client.providers.netty.NettyAsyncHttpProvider.finishChannel(NettyAsyncHttpProvider.java:1070) ~[async-http-client-1.7.2.jar:na]
at com.ning.http.client.providers.netty.NettyAsyncHttpProvider.closeChannel(NettyAsyncHttpProvider.java:1055) ~[async-http-client-1.7.2.jar:na]
at com.ning.http.client.providers.netty.NettyAsyncHttpProvider.exceptionCaught(NettyAsyncHttpProvider.java:1540) ~[async-http-client-1.7.2.jar:na]
at org.jboss.netty.handler.stream.ChunkedWriteHandler.handleUpstream(ChunkedWriteHandler.java:141) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.exceptionCaught(ReplayingDecoder.java:539) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.handler.codec.http.HttpClientCodec.handleUpstream(HttpClientCodec.java:92) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.Channels.fireExceptionCaught(Channels.java:533) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.AbstractChannelSink.exceptionCaught(AbstractChannelSink.java:49) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:94) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.processSelectedKeys(AbstractNioWorker.java:372) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:246) ~[netty-3.4.4.Final.jar:na]
at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:38) ~[netty-3.4.4.Final.jar:na]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) [na:1.6.0_07]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.6.0_07]
at java.lang.Thread.run(Unknown Source) [na:1.6.0_07]

[survivant]

still a problem.

<classpathentry kind="var" path="M2_REPO/io/netty/netty/3.4.4.Final/netty-3.4.4.Final.jar"/>

java.lang.NullPointerException
    at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.isContentAlwaysEmpty(HttpClientCodec.java:176)
    at org.jboss.netty.handler.codec.http.HttpMessageDecoder.readHeaders(HttpMessageDecoder.java:462)
    at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:191)
    at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:140)
    at org.jboss.netty.handler.codec.http.HttpClientCodec$Decoder.decode(HttpClientCodec.java:128)
    at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:548)
    at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:445)
    at org.jboss.netty.handler.codec.http.HttpClientCodec.handleUpstream(HttpClientCodec.java:92)
    at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
    at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
    at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:94)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.processSelectedKeys(AbstractNioWorker.java:372)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:246)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:38)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

[slandelle]

@survivant Would it be possible for you to provide server side test case, so one can reproduce, please?

[survivant]

Hummm, at this point after 10 months, my code evolve and I'm not sure how to reproduce it at this point. You should close this issue and I will reopen it if I return testing socket.io.

[slandelle]

Will reopen if needed.