Can anyone tell me what the error means?

Can anyone tell me what the error means?


2010.03.12 16:50:12 [org.jivesoftware.util.log.util.CommonsLogFactory$1.error(CommonsLogFactory.jav a:88)
] Line=19 The content of element type “dwr” must match “(init?,allow?,signatures?)”.
2010.03.12 16:52:30 [org.jivesoftware.openfire.container.PluginServlet.service(PluginServlet.java:9 9)
]
org.mortbay.jetty.EofException
at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:760)
at org.mortbay.jetty.AbstractGenerator$Output.flush(AbstractGenerator.java:566)
at org.mortbay.jetty.HttpConnection$Output.flush(HttpConnection.java:911)
at org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:650)
at org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:577)
at com.opensymphony.module.sitemesh.filter.RoutableServletOutputStream.write(Routa bleServletOutputStream.java:118)
at org.jivesoftware.openfire.container.PluginServlet.handleOtherRequest(PluginServ let.java:356)
at org.jivesoftware.openfire.container.PluginServlet.service(PluginServlet.java:95 )
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1093)
at org.jivesoftware.admin.PluginFilter.doFilter(PluginFilter.java:70)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1084)
at org.jivesoftware.admin.AuthCheckFilter.doFilter(AuthCheckFilter.java:146)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1084)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:11 8)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.ja va:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollect ion.java:206)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.j ava:829)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)
Caused by: java.io.IOException: 远程主机强迫关闭了一个现有的连接。
at sun.nio.ch.SocketDispatcher.writev0(Native Method)
at sun.nio.ch.SocketDispatcher.writev(Unknown Source)
at sun.nio.ch.IOUtil.write(Unknown Source)
at sun.nio.ch.SocketChannelImpl.write0(Unknown Source)
at sun.nio.ch.SocketChannelImpl.write(Unknown Source)
at java.nio.channels.SocketChannel.write(Unknown Source)
at org.mortbay.io.nio.ChannelEndPoint.flush(ChannelEndPoint.java:223)
at org.mortbay.io.nio.SelectChannelEndPoint.flush(SelectChannelEndPoint.java:197)
at org.mortbay.jetty.HttpGenerator.flush(HttpGenerator.java:682)
… 33 more

thanks for reply!