我无法弄清楚为什么同一个项目在带有 Glassfis 3.2 的 Netbeans 7.2.1 上完美运行，并且在带有 glassfish 4 的 Netbeans 7.3.1 或更高版本（即 7.4）上运行时发出 IOException 警告。我总是收到这种特殊的警告，我无法从我的控制台中摆脱它：
WARNING: JSF1064: Unable to find or serve resource, theme.css, from library, primefaces-redmond.
WARNING: java.io.IOException: An existing connection was forcibly closed by the remote host
at sun.nio.ch.SocketDispatcher.write0(Native Method)
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
at sun.nio.ch.IOUtil.write(IOUtil.java:51)
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:487)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.flushByteBuffer(TCPNIOTransport.java:1252)
at org.glassfish.grizzly.nio.transport.TCPNIOAsyncQueueWriter.write0(TCPNIOAsyncQueueWriter.java:107)
at org.glassfish.grizzly.nio.AbstractNIOAsyncQueueWriter.write(AbstractNIOAsyncQueueWriter.java:296)
at org.glassfish.grizzly.nio.AbstractNIOAsyncQueueWriter.write(AbstractNIOAsyncQueueWriter.java:203)
at org.glassfish.grizzly.nio.AbstractNIOAsyncQueueWriter.write(AbstractNIOAsyncQueueWriter.java:73)
at org.glassfish.grizzly.nio.transport.TCPNIOTransportFilter.handleWrite(TCPNIOTransportFilter.java:128)
at org.glassfish.grizzly.filterchain.TransportFilter.handleWrite(TransportFilter.java:191)
at org.glassfish.grizzly.filterchain.ExecutorResolver$8.execute(ExecutorResolver.java:111)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.filterchain.FilterChainContext.write(FilterChainContext.java:853)
at org.glassfish.grizzly.filterchain.FilterChainContext.write(FilterChainContext.java:822)
at org.glassfish.grizzly.http.io.OutputBuffer.flushBuffer(OutputBuffer.java:1011)
at org.glassfish.grizzly.http.io.OutputBuffer.write(OutputBuffer.java:676)
at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:355)
at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:342)
at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:161)
at java.nio.channels.Channels$WritableByteChannelImpl.write(Channels.java:458)
at com.sun.faces.application.resource.ResourceHandlerImpl.handleResourceRequest(ResourceHandlerImpl.java:343)
at javax.faces.application.ResourceHandlerWrapper.handleResourceRequest(ResourceHandlerWrapper.java:153)
at org.primefaces.application.PrimeResourceHandler.handleResourceRequest(PrimeResourceHandler.java:99)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:643)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:344)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at com.hilltop.RequestFilter.doFilter(RequestFilter.java:44)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:316)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
at java.lang.Thread.run(Thread.java:744)
我不明白发生了什么。我试图抑制警告，但没有奏效。当我将 Netbeans 7.2.1 与 Glassfish 3.2 一起使用时没有问题。“chain.doFilter(req, res);” 是抛出上述 IOException 的一行。我试图抛出这个问题，试图用多个 catch 语句和其他可能的 res、req 或请求响应组合来捕捉，但没有任何效果。以下是代码：
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) {
尝试 {
HttpServletRequest 请求 = (HttpServletRequest) 请求；
HttpServletResponse 响应 = (HttpServletResponse) res;
HttpSession 会话 = request.getSession(false);
System.out.println(request.getRequestURI());
if (session == null || session.getAttribute("online") == null) {
response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1。
response.setHeader("Pragma", "no-cache"); // HTTP 1.0。
response.setDateHeader("过期", 0); // 代理。
chain.doFilter(req, res);//这是给出上述问题的行
} 别的 {
链.doFilter(req, res);
}
} 捕捉（异常 e）{
System.out.println("一些 IO 相关异常");
}
}
所以，如果你们中的任何人知道这是怎么回事，请告诉我。我还是一个初学者，想学习java JSF。
谢谢