When using the file size <multipart-config> settings as mentioned in the wiki docs, an error is thrown server side but the client side is not updated. An exception is thrown in on the server side but the progress bar on the client continues to be active.

This can be reproduced with the Showcase demo. The web.xml needs to be updated to use the <multipart-config> settings.

Error stack trace:
04-Nov-2015 10:48:46.069 WARNING [http-nio-8084-exec-5] org.icefaces.ace.component.fileentry.FileEntryUpload.afterPhase Problem reading multi-part form upload, likely due to a file upload being cut off from the client losing their network connection or closing their browser tab or window.
 java.lang.IllegalStateException: org.apache.tomcat.util.http.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (151940648) exceeds the configured maximum (52428800)
at org.apache.catalina.connector.Request.parseParts(Request.java:2707)
at org.apache.catalina.connector.Request.parseParameters(Request.java:2951)
at org.apache.catalina.connector.Request.getParameter(Request.java:1091)
at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:380)
at org.netbeans.modules.web.monitor.server.MonitorRequestWrapper.getParameter(MonitorRequestWrapper.java:199)
at javax.servlet.ServletRequestWrapper.getParameter(ServletRequestWrapper.java:145)
at org.icefaces.util.ClientDescriptor.getInstance(ClientDescriptor.java:73)
at org.icefaces.impl.application.ClientDescriptorSetup.isSessionAwareResourceRequest(ClientDescriptorSetup.java:38)
at org.icefaces.impl.application.SessionAwareResourceHandlerWrapper.isResourceRequest(SessionAwareResourceHandlerWrapper.java:32)
at org.icefaces.impl.application.SessionTimeoutMonitor.isSessionAwareResourceRequest(SessionTimeoutMonitor.java:41)
at org.icefaces.impl.application.SessionAwareResourceHandlerWrapper.isResourceRequest(SessionAwareResourceHandlerWrapper.java:32)
at javax.faces.application.ResourceHandlerWrapper.isResourceRequest(ResourceHandlerWrapper.java:166)
at javax.faces.application.ResourceHandlerWrapper.isResourceRequest(ResourceHandlerWrapper.java:166)
at javax.faces.application.ResourceHandlerWrapper.isResourceRequest(ResourceHandlerWrapper.java:166)
at javax.faces.application.ResourceHandlerWrapper.isResourceRequest(ResourceHandlerWrapper.java:166)
at javax.faces.application.ResourceHandlerWrapper.isResourceRequest(ResourceHandlerWrapper.java:166)
at org.icefaces.impl.util.CharacterEncodingHandler.isResourceRequest(CharacterEncodingHandler.java:73)
at javax.faces.application.ResourceHandlerWrapper.isResourceRequest(ResourceHandlerWrapper.java:166)
at javax.faces.application.ResourceHandlerWrapper.isResourceRequest(ResourceHandlerWrapper.java:166)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:642)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:526)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:655)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.tomcat.util.http.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (151940648) exceeds the configured maximum (52428800)
at org.apache.tomcat.util.http.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:811)
at org.apache.tomcat.util.http.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:256)
at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:280)
at org.apache.catalina.connector.Request.parseParts(Request.java:2640)
... 44 more