http500错误 http 500内部服务器错误，请与管理员联系。 请尝试以下操作： ·打开主页，然后查找指向您感兴趣信息的链接。 ·单击后退链接，尝试其他链接。

错误：java.util.ConcurrentModificationException
错误码：500
异常：null
exception:java.util.ConcurrentModificationException
cause:null
message:null
localizedMessage:null
stackTrace:java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437) at java.util.HashMap$KeyIterator.next(HashMap.java:1461) at com.lyt.util.filter.CountDayBrowseFilter.docurrent(CountDayBrowseFilter.java:99) at com.lyt.util.filter.CountDayBrowseFilter.doFilter(CountDayBrowseFilter.java:43) at com.lyt.util.HttpFilter.doFilter(HttpFilter.java:46) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:164) at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141) at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:406) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.lyt.util.filter.UrlRedirectFilter.doFilter(UrlRedirectFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.magtech.filter.UserGroupMapFilter.doFilter(UserGroupMapFilter.java:39) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.magtech.filter.XssFilter.doFilter(XssFilter.java:57) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.lyt.util.web.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:44) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.lyt.util.filter.JournalIDFilter.doFilter(JournalIDFilter.java:146) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.lyt.util.filter.ReadRequestRefererFilter.doFilter(ReadRequestRefererFilter.java:32) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.lyt.util.filter.AuthenticationFilter.doFilter(AuthenticationFilter.java:89) at com.lyt.util.HttpFilter.doFilter(HttpFilter.java:46) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.ssi.SSIFilter.doFilter(SSIFilter.java:114) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:652) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:617) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:876) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:612) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1777) at java.lang.Thread.run(Thread.java:745)