我正在使用 Netty 3.2.4，并且我正在尝试调试我的应用程序以解决错误，但我意识到在我开始使用 Netty 运行我的应用程序后，每 2 秒我会从“无处”获得一个打开/关闭连接（通道） ”。
根据以下堆栈跟踪，我抛出了一个新异常以获取堆栈跟踪以发现它来自何处，并且我看到一个“DeadLockProofWorker$1”类正在运行。
它从何而来？为什么？可以避免吗？
java.lang.Exception
at org.spcbrasil.commbroker.server.handler.CleanUpServerHandler.channelClosed(CleanUpServerHandler.java:26)
at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:118)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at org.jboss.netty.channel.SimpleChannelHandler.channelClosed(SimpleChannelHandler.java:228)
at org.spcbrasil.commbroker.server.handler.CommBrokerServiceHandler.channelClosed(CommBrokerServiceHandler.java:79)
at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:118)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at org.jboss.netty.channel.SimpleChannelHandler.channelClosed(SimpleChannelHandler.java:228)
at org.spcbrasil.commbroker.server.handler.LogServerHandler.channelClosed(LogServerHandler.java:145)
at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:118)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at org.jboss.netty.channel.SimpleChannelUpstreamHandler.channelClosed(SimpleChannelUpstreamHandler.java:208)
at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:98)
at org.spcbrasil.commbroker.server.handler.HandshakeStopServerHandler.handleUpstream(HandshakeStopServerHandler.java:28)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at org.jboss.netty.channel.SimpleChannelHandler.channelClosed(SimpleChannelHandler.java:228)
at org.spcbrasil.commbroker.server.handler.HandshakeServerHandler.channelClosed(HandshakeServerHandler.java:107)
at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:118)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at org.jboss.netty.handler.codec.oneone.OneToOneDecoder.handleUpstream(OneToOneDecoder.java:66)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:540)
at org.jboss.netty.channel.Channels.fireChannelClosed(Channels.java:404)
at org.jboss.netty.channel.socket.nio.NioWorker.close(NioWorker.java:593)
at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:355)
at org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:280)
at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:200)
at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:44)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)