3.9 正式 uploadDoc 报错

youmi

3.9正式版，文档服务在内网，用的nginx代理，偶尔会报504，控制台提示这个UI2/system/service/doc/common/uploadDoc 报错
org.apache.catalina.core.StandardWrapperValve.invoke 在路径为/x5的上下文中，Servlet[main-servlet]的Servlet.service（）引发了具有根本原因的异常java.util.ConcurrentModificationException
        java.util.ConcurrentModificationException
                at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
                at java.util.ArrayList$Itr.next(ArrayList.java:851)
                at com.justep.ui.servlet.MainServlet.unloadModel(Unknown Source)
                at com.justep.ui.servlet.MainServlet.service(Unknown Source)
                at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
                at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
                at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
                at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
                at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
                at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
                at com.justep.portal.filter.RedirectFilter.doFilter(Unknown Source)
                at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
                at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
                at com.justep.ui.filter.MicroServiceAdminFilter.doFilter(Unknown Source)
                at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
                at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
                at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
                at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
                at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:543)
                at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
                at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
                at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
                at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
                at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
                at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:615)
                at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
                at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:818)
                at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1627)
                at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
                at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
                at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
                at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

jishuang

不通过反向代理，全在内网操作没问题吗？