Got this error

[Syahreza Pahlevi Ginting]

Got this error:
Exception in thread "pool-2-thread-1" java.lang.InternalError
        at sun.misc.URLClassPath$JarLoader.getResource(Unknown Source)
        at sun.misc.URLClassPath.getResource(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at sun.misc.Launcher$ExtClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.util.ResourceBundle$RBClassLoader.loadClass(Unknown Source)
        at java.util.ResourceBundle$Control.newBundle(Unknown Source)
        at java.util.ResourceBundle.loadBundle(Unknown Source)
        at java.util.ResourceBundle.findBundle(Unknown Source)
        at java.util.ResourceBundle.findBundle(Unknown Source)
        at java.util.ResourceBundle.getBundleImpl(Unknown Source)
        at java.util.ResourceBundle.getBundle(Unknown Source)
        at java.util.logging.Level.getLocalizedName(Unknown Source)
        at java.util.logging.SimpleFormatter.format(Unknown Source)
        at java.util.logging.StreamHandler.publish(Unknown Source)
        at java.util.logging.ConsoleHandler.publish(Unknown Source)
        at java.util.logging.Logger.log(Unknown Source)
        at java.util.logging.Logger.doLog(Unknown Source)
        at java.util.logging.Logger.logp(Unknown Source)
        at org.jboss.netty.logging.JdkLogger.warn(JdkLogger.java:86)
        at
org.jboss.netty.logging.InternalLoggerFactory$1.warn(InternalLoggerFactory.java:133)
        at
org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink$Boss.run(NioServerSocketPipelineSink.java:242)
        at
org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:101)
        at
org.jboss.netty.util.internal.IoWorkerRunnable.run(IoWorkerRunnable.java:46)
        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)
Caused by: java.util.zip.ZipException: error in opening zip file
        at java.util.zip.ZipFile.open(Native Method)
        at java.util.zip.ZipFile.<init>(Unknown Source)
        at java.util.jar.JarFile.<init>(Unknown Source)
        at java.util.jar.JarFile.<init>(Unknown Source)
        at sun.misc.URLClassPath$JarLoader.getJarFile(Unknown Source)
        at sun.misc.URLClassPath$JarLoader.access$600(Unknown Source)
        at sun.misc.URLClassPath$JarLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.misc.URLClassPath$JarLoader.ensureOpen(Unknown Source)
        ... 32 more


I am using
Linux Red Hat 5
Netty *3.1.5.GA* <http://www.jboss.org/netty/downloads.html> version
This is coding when binding.
            ChannelFactory factory =  new
NioServerSocketChannelFactory(Executors.newCachedThreadPool(),

Executors.newCachedThreadPool());//,200);
            ServerBootstrap bootstrap = new ServerBootstrap(factory);
            log.info("Start listening on " + ip + ":" + port);
            bootstrap.setPipelineFactory(new ConnPipelineFactory(this));

            bootstrap.setOption("child.tcpNoDelay", true);
            bootstrap.setOption("child.keepAlive", true);
            bootstrap.setOption("child.reuseAddress", true);
            bootstrap.setOption("child.connectTimeoutMillis", 10000);

            conData.setBootstrapSvr(bootstrap);
            // Bind and start to accept incoming connections.
            InetAddress inet = InetAddress.getByName(ip);

            Channel chn = bootstrap.bind(new InetSocketAddress(inet,port));

I have set maximum open file to
[root at localhost ~]# cat /proc/sys/fs/file-max
1000000
When this error happen, server can't get any event in Channel Handler.
Client can connect but all data sent to server will not responded.
Thank you for you kindness to answer this Question.

Regard
Reza Ginting
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