Flow: FileNotFoundException assetsByChunks

Created on 16 Oct 2019  Â·  17Comments  Â·  Source: vaadin/flow

With vaadin 14.0.9 release, i'm getting this exception :
[http-nio-8089-exec-2] ERROR c.v.flow.server.DefaultErrorHandler:34 -
com.vaadin.flow.server.BootstrapException: Unable to read webpack stats file.
...
ERROR o.a.c.c.C.[.[.[/].[springServlet]:175 - Servlet.service() for servlet [springServlet] threw exception
java.io.FileNotFoundException: http://localhost:xxxxx/assetsByChunkName

This error is not reproducible with vaadin 14.0.8 version

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picture aboulogne
👍2

All 17 comments

Thanks for the ticket! I'm moving this to the Flow team for further investigations.

juhopiirainen picture juhopiirainen on 16 Oct 2019
👍1

@aboulogne thanks for reporting. Would you please provide minimal steps to reproduce this issue?

mehdi-vaadin picture mehdi-vaadin on 21 Oct 2019

Hi Mehdi,

The server starts without any errors (npm, spring beans, servlets). When I start to enter url in client side (browser) I got this log immediatly :

====================================================================
Vaadin is running in DEBUG MODE.

Add productionMode=true to web.xml to disable debug features.

15:18:28.940 [http-nio-8089-exec-1] INFO c.v.flow.spring.SpringInstantiator:81 - The number of beans implementing 'I18NProvider' is 0. Cannot use Spring beans for I18N, falling back to the default behavior
15:18:29.012 [http-nio-8089-exec-1] INFO o.s.b.f.a.AutowiredAnnotationBeanPostProcessor:447 - Autowired annotation is not supported on static fields: static org.springframework.security.web.authentication.RememberMeServices com.softbridge.viewer.app.commons.SoftbridgeViewerUI.rememberMeServices
15:18:29.012 [http-nio-8089-exec-1] INFO o.s.b.f.a.AutowiredAnnotationBeanPostProcessor:447 - Autowired annotation is not supported on static fields: static com.softbridge.viewer.app.commons.security.HttpRequestResponseService com.softbridge.viewer.app.commons.SoftbridgeViewerUI.httpRequestResponseService
15:18:29.861 [http-nio-8089-exec-1] ERROR c.v.flow.server.DefaultErrorHandler:34 -
com.vaadin.flow.server.BootstrapException: Unable to read webpack stats file.
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.setupFrameworkLibraries(BootstrapHandler.java:837)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.setupDocumentHead(BootstrapHandler.java:718)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.getBootstrapPage(BootstrapHandler.java:521)
at com.vaadin.flow.server.BootstrapHandler.synchronizedHandleRequest(BootstrapHandler.java:462)
at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1540)
at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:246)
at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:95)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:352)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:141)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:645)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
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:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:150)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:74)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
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:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.FileNotFoundException: http://localhost:33715/assetsByChunkName
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1890)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
at com.vaadin.flow.server.frontend.FrontendUtils.getStatsAssetsByChunkName(FrontendUtils.java:442)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.appendNpmBundle(BootstrapHandler.java:853)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.setupFrameworkLibraries(BootstrapHandler.java:835)
... 95 common frames omitted
15:18:29.863 [http-nio-8089-exec-1] ERROR o.a.c.c.C.[.[.[/].[springServlet]:175 - Servlet.service() for servlet [springServlet] threw exception
java.io.FileNotFoundException: http://localhost:33715/assetsByChunkName
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1890)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
at com.vaadin.flow.server.frontend.FrontendUtils.getStatsAssetsByChunkName(FrontendUtils.java:442)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.appendNpmBundle(BootstrapHandler.java:853)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.setupFrameworkLibraries(BootstrapHandler.java:835)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.setupDocumentHead(BootstrapHandler.java:718)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.getBootstrapPage(BootstrapHandler.java:521)
at com.vaadin.flow.server.BootstrapHandler.synchronizedHandleRequest(BootstrapHandler.java:462)
at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1540)
at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:246)
at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:95)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:352)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:141)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:645)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
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:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:150)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:74)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
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:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
15:18:29.867 [http-nio-8089-exec-1] ERROR o.a.c.c.C.[.[.[.[dispatcherServlet]:175 - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [com.vaadin.flow.server.ServiceException: com.vaadin.flow.server.BootstrapException: Unable to read webpack stats file.] with root cause
java.io.FileNotFoundException: http://localhost:33715/assetsByChunkName
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1890)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
at com.vaadin.flow.server.frontend.FrontendUtils.getStatsAssetsByChunkName(FrontendUtils.java:442)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.appendNpmBundle(BootstrapHandler.java:853)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.setupFrameworkLibraries(BootstrapHandler.java:835)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.setupDocumentHead(BootstrapHandler.java:718)
at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.getBootstrapPage(BootstrapHandler.java:521)
at com.vaadin.flow.server.BootstrapHandler.synchronizedHandleRequest(BootstrapHandler.java:462)
at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1540)
at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:246)
at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:95)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:352)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:141)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:645)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
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:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:150)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:74)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
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:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)

No errors with 14.0.8

I hope this is helping

aboulogne picture aboulogne on 22 Oct 2019

I got the same exception:

Caused by: java.io.FileNotFoundException: http://localhost:34063/assetsByChunkName
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1896)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
    at com.vaadin.flow.server.frontend.FrontendUtils.getStatsAssetsByChunkName(FrontendUtils.java:476)

This is the example app (note it's using Vaadin 14.1.0.alpha4):
skeleton-starter-flow.zip

Steps to reproduce:

  1. Launch the app in Intellij Ultimate in Tomcat - the stacktrace should appear.
  2. However, when you run the very same app with mvn jetty:run then it works properly. Very interesting.

Also, in Tomcat, http://localhost:40541/assetsByChunkName is a 404, but http://localhost:40541/ shows a listing of Tomcat root folder, also quite interesting.

mvysny picture mvysny on 23 Oct 2019
👍1

What node and npm version is in use?
How do you build the war to be deployed?
Do you get in the logs Failed to find the following imports in thenode_modulestree: ?
Does webpack log 

[webpack] INFO dev-webpack - 
----------------- Frontend compiled successfully. -----------------

or

[webpack] INFO dev-webpack - 
----------------- Frontend compilation failed. -----------------
caalador picture caalador on 23 Oct 2019

Also if there is no exceptions in the logs are you running the vaadin maven plugin goal prepare-frontend?
In the case that you do not use the plugin at all try removing the file webpack.generated.js as the plugin always updates that, but when not using the plugin we only generate it in development mode if it doesn't exist.

caalador picture caalador on 23 Oct 2019

@mvysny could you elaborate on Launch the app in Intellij Ultimate in Tomcat as for me it started without any exceptions on the provided zip.

caalador picture caalador on 23 Oct 2019

@caalador

  • I use npm 5.8.0 and node 10.15.2, the default ones which comes with Ubuntu (sudo apt install npm).
  • I do not build the war file; instead I configure Intellij Ultimate to launch the project in Tomcat with exploded WAR. However, even if I run just war unexploded from Intellij, the outcome is the same.
  • mvn vaadin:prepare-frontend runs successfully
  • The log contains frontend compiled successfully

The log contents:

/home/mavi/local/apache-tomcat-9.0.26/bin/catalina.sh run
[2019-10-23 02:04:39,454] Artifact skeleton-starter-flow:war exploded: Waiting for server connection to start artifact deployment...
Connected to the target VM, address: '127.0.0.1:40751', transport: 'socket'
23-Oct-2019 14:04:40.487 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version name:   Apache Tomcat/9.0.26
23-Oct-2019 14:04:40.489 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built:          Sep 16 2019 15:51:39 UTC
23-Oct-2019 14:04:40.489 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version number: 9.0.26.0
23-Oct-2019 14:04:40.489 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name:               Linux
23-Oct-2019 14:04:40.489 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version:            5.3.0-19-generic
23-Oct-2019 14:04:40.489 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture:          amd64
23-Oct-2019 14:04:40.489 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home:             /usr/lib/jvm/java-8-openjdk-amd64/jre
23-Oct-2019 14:04:40.489 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version:           1.8.0_232-ea-8u232-b09-0ubuntu1-b09
23-Oct-2019 14:04:40.490 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor:            Private Build
23-Oct-2019 14:04:40.490 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE:         /home/mavi/.IntelliJIdea2019.2/system/tomcat/Unnamed_skeleton-starter-flow
23-Oct-2019 14:04:40.490 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME:         /home/mavi/local/apache-tomcat-9.0.26
23-Oct-2019 14:04:40.490 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/home/mavi/.IntelliJIdea2019.2/system/tomcat/Unnamed_skeleton-starter-flow/conf/logging.properties
23-Oct-2019 14:04:40.490 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
23-Oct-2019 14:04:40.490 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:40751,suspend=y,server=n
23-Oct-2019 14:04:40.490 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -javaagent:/snap/intellij-idea-ultimate/173/plugins/java/lib/rt/debugger-agent.jar
23-Oct-2019 14:04:40.490 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote=
23-Oct-2019 14:04:40.490 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.port=1099
23-Oct-2019 14:04:40.490 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.ssl=false
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.password.file=/home/mavi/.IntelliJIdea2019.2/system/tomcat/Unnamed_skeleton-starter-flow/jmxremote.password
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.access.file=/home/mavi/.IntelliJIdea2019.2/system/tomcat/Unnamed_skeleton-starter-flow/jmxremote.access
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.rmi.server.hostname=127.0.0.1
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dorg.apache.catalina.security.SecurityListener.UMASK=0027
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs=
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/home/mavi/.IntelliJIdea2019.2/system/tomcat/Unnamed_skeleton-starter-flow
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/home/mavi/local/apache-tomcat-9.0.26
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/home/mavi/local/apache-tomcat-9.0.26/temp
23-Oct-2019 14:04:40.491 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/usr/java/packages/lib/amd64:/usr/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib]
23-Oct-2019 14:04:40.746 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"]
23-Oct-2019 14:04:40.787 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"]
23-Oct-2019 14:04:40.800 INFO [main] org.apache.catalina.startup.Catalina.load Server initialization in [512] milliseconds
23-Oct-2019 14:04:40.849 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]
23-Oct-2019 14:04:40.849 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet engine: [Apache Tomcat/9.0.26]
23-Oct-2019 14:04:40.870 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
23-Oct-2019 14:04:40.895 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
23-Oct-2019 14:04:40.912 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in [111] milliseconds
Connected to server
[2019-10-23 02:04:41,135] Artifact skeleton-starter-flow:war exploded: Artifact is being deployed, please wait...
[RMI TCP Connection(2)-127.0.0.1] INFO com.vaadin.flow.server.startup.DevModeInitializer - Starting dev-mode updaters in /home/mavi/local/apache-tomcat-9.0.26/bin folder.
[RMI TCP Connection(2)-127.0.0.1] INFO dev-updater - Visited 69 classes. Took 48 ms.
[RMI TCP Connection(2)-127.0.0.1] INFO dev-updater - Skipping `npm install`.
[RMI TCP Connection(2)-127.0.0.1] INFO dev-updater - Copying frontend resources from jar files ...
[RMI TCP Connection(2)-127.0.0.1] INFO dev-updater - Visited 11 resources. Took 24 ms.
[RMI TCP Connection(2)-127.0.0.1] INFO dev-updater - Updated /home/mavi/local/apache-tomcat-9.0.26/bin/target/frontend/generated-flow-imports.js
[RMI TCP Connection(2)-127.0.0.1] INFO dev-webpack - Starting webpack-dev-server, port: 44103 dir: /home/mavi/local/apache-tomcat-9.0.26/bin
   /usr/bin/node /home/mavi/local/apache-tomcat-9.0.26/bin/node_modules/webpack-dev-server/bin/webpack-dev-server.js --config /home/mavi/local/apache-tomcat-9.0.26/bin/webpack.config.js --port 44103 --watchDogPort=42743 -d --inline=false
[webpack] INFO dev-webpack - ℹ ｢wds｣: Project is running at http://localhost:44103/webpack-dev-server/
[webpack] INFO dev-webpack - ℹ ｢wds｣: webpack output is served from /
[webpack] INFO dev-webpack - ℹ ｢wds｣: Content not from webpack is served from /home/mavi/local/apache-tomcat-9.0.26/bin, src/main/webapp
[webpack] INFO dev-webpack - Watchdog connected.
23-Oct-2019 14:04:50.878 INFO [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/home/mavi/local/apache-tomcat-9.0.26/webapps/manager]
[webpack] INFO dev-webpack -          Serving the 'stats.json' file dynamically.
23-Oct-2019 14:04:50.939 INFO [Catalina-utility-2] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
23-Oct-2019 14:04:50.985 INFO [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/home/mavi/local/apache-tomcat-9.0.26/webapps/manager] has finished in [107] ms
[webpack] INFO dev-webpack - ℹ ｢wdm｣: Hash: efafb31ce855f80ad712
[webpack] INFO dev-webpack - Version: webpack 4.30.0
[webpack] INFO dev-webpack - Time: 5946ms
[webpack] INFO dev-webpack - Built at: 10/23/2019 2:04:50 PM
[webpack] INFO dev-webpack -                                                                      Asset       Size      Chunks                    Chunk Names
[webpack] INFO dev-webpack -                          build/vaadin-bundle-102792e8cfe0f10c63d1.cache.js   12.8 MiB      bundle  [emitted]  [big]  bundle
[webpack] INFO dev-webpack -                       build/vaadin-bundle-102792e8cfe0f10c63d1.cache.js.gz   3.21 MiB              [emitted]  [big]  
[webpack] INFO dev-webpack -                      build/vaadin-bundle.es5-b9b2dc8dd7efab5558f9.cache.js   13.9 MiB  bundle.es5  [emitted]  [big]  bundle.es5
[webpack] INFO dev-webpack -                   build/vaadin-bundle.es5-b9b2dc8dd7efab5558f9.cache.js.gz   3.33 MiB              [emitted]  [big]  
[webpack] INFO dev-webpack -                                           build/webcomponentsjs/LICENSE.md   1.52 KiB              [emitted]         
[webpack] INFO dev-webpack -                                            build/webcomponentsjs/README.md   10.5 KiB              [emitted]         
[webpack] INFO dev-webpack -                          build/webcomponentsjs/bundles/webcomponents-ce.js   19.7 KiB              [emitted]         
[webpack] INFO dev-webpack -                      build/webcomponentsjs/bundles/webcomponents-ce.js.map    129 KiB              [emitted]         
[webpack] INFO dev-webpack -                    build/webcomponentsjs/bundles/webcomponents-sd-ce-pf.js    112 KiB              [emitted]         
[webpack] INFO dev-webpack -                build/webcomponentsjs/bundles/webcomponents-sd-ce-pf.js.map    666 KiB              [emitted]         
[webpack] INFO dev-webpack -                       build/webcomponentsjs/bundles/webcomponents-sd-ce.js   83.9 KiB              [emitted]         
[webpack] INFO dev-webpack -                   build/webcomponentsjs/bundles/webcomponents-sd-ce.js.map    539 KiB              [emitted]         
[webpack] INFO dev-webpack -                          build/webcomponentsjs/bundles/webcomponents-sd.js   65.2 KiB              [emitted]         
[webpack] INFO dev-webpack -                      build/webcomponentsjs/bundles/webcomponents-sd.js.map    410 KiB              [emitted]         
[webpack] INFO dev-webpack -                       build/webcomponentsjs/custom-elements-es5-adapter.js  950 bytes              [emitted]         
[webpack] INFO dev-webpack -                                         build/webcomponentsjs/package.json   2.45 KiB              [emitted]         
[webpack] INFO dev-webpack - build/webcomponentsjs/src/entrypoints/custom-elements-es5-adapter-index.js  659 bytes              [emitted]         
[webpack] INFO dev-webpack -        build/webcomponentsjs/src/entrypoints/webcomponents-bundle-index.js   1.66 KiB              [emitted]         
[webpack] INFO dev-webpack -            build/webcomponentsjs/src/entrypoints/webcomponents-ce-index.js  675 bytes              [emitted]         
[webpack] INFO dev-webpack -         build/webcomponentsjs/src/entrypoints/webcomponents-sd-ce-index.js  860 bytes              [emitted]         
[webpack] INFO dev-webpack -      build/webcomponentsjs/src/entrypoints/webcomponents-sd-ce-pf-index.js   1.22 KiB              [emitted]         
[webpack] INFO dev-webpack -            build/webcomponentsjs/src/entrypoints/webcomponents-sd-index.js  767 bytes              [emitted]         
[webpack] INFO dev-webpack -                              build/webcomponentsjs/webcomponents-bundle.js    113 KiB              [emitted]         
[webpack] INFO dev-webpack -                          build/webcomponentsjs/webcomponents-bundle.js.map    669 KiB              [emitted]         
[webpack] INFO dev-webpack -                              build/webcomponentsjs/webcomponents-loader.js   6.13 KiB              [emitted]         
[webpack] INFO dev-webpack - Entrypoint bundle [big] = build/vaadin-bundle-102792e8cfe0f10c63d1.cache.js
[webpack] INFO dev-webpack - Entrypoint bundle.es5 [big] = build/vaadin-bundle.es5-b9b2dc8dd7efab5558f9.cache.js
[webpack] INFO dev-webpack - [../node_modules/@polymer/iron-icon/iron-icon.js] 5.88 KiB {bundle.es5} [built]
[webpack] INFO dev-webpack - [../node_modules/@polymer/iron-icon/iron-icon.js] 5.56 KiB {bundle} [built]
[webpack] INFO dev-webpack - [../node_modules/@polymer/iron-list/iron-list.js] 58.7 KiB {bundle.es5} [built]
[webpack] INFO dev-webpack - [../node_modules/@polymer/iron-list/iron-list.js] 57.4 KiB {bundle} [built]
[webpack] INFO dev-webpack - [../node_modules/@vaadin/flow-frontend/comboBoxConnector-es6.js] 414 bytes {bundle.es5} [built]
[webpack] INFO dev-webpack - [../node_modules/@vaadin/flow-frontend/comboBoxConnector-es6.js] 414 bytes {bundle} [built]
[webpack] INFO dev-webpack - [../node_modules/@vaadin/flow-frontend/comboBoxConnector.js] 11.9 KiB {bundle.es5} [built]
[webpack] INFO dev-webpack - [../node_modules/@vaadin/flow-frontend/comboBoxConnector.js] 11.3 KiB {bundle} [built]
[webpack] INFO dev-webpack - [../node_modules/@vaadin/flow-frontend/contextMenuConnector-es6.js] 319 bytes {bundle.es5} [built]
[webpack] INFO dev-webpack - [../node_modules/@vaadin/flow-frontend/contextMenuConnector-es6.js] 319 bytes {bundle} [built]
[webpack] INFO dev-webpack - [../node_modules/@vaadin/flow-frontend/contextMenuConnector.js] 3.62 KiB {bundle.es5} [built]
[webpack] INFO dev-webpack - [../node_modules/@vaadin/flow-frontend/contextMenuConnector.js] 3.49 KiB {bundle} [built]
[webpack] INFO dev-webpack - [../node_modules/@vaadin/flow-frontend/datepickerConnector.js] 5.59 KiB {bundle.es5} [built]
[webpack] INFO dev-webpack - [../target/frontend/generated-flow-imports.js] 4.95 KiB {bundle.es5} [built]
[webpack] INFO dev-webpack - [../target/frontend/generated-flow-imports.js] 4.95 KiB {bundle} [built]
[webpack] INFO dev-webpack -     + 924 hidden modules
[webpack] INFO dev-webpack - ℹ ｢wdm｣: Compiled successfully.
[webpack] INFO dev-webpack - 
----------------- Frontend compiled successfully. -----------------
23-Oct-2019 14:04:51.121 INFO [RMI TCP Connection(2)-127.0.0.1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
[RMI TCP Connection(2)-127.0.0.1] INFO com.vaadin.flow.server.startup.ServletDeployer - Skipping automatic servlet registration because there is already a Vaadin servlet with the name com.vaadin.starter.skeleton.WebComponentVaadinServlet
[RMI TCP Connection(2)-127.0.0.1] WARN org.atmosphere.util.IOUtils - More than one Servlet Mapping defined. WebSocket may not work org.apache.catalina.core.ApplicationServletRegistration@24b150ba
[2019-10-23 02:04:51,281] Artifact skeleton-starter-flow:war exploded: Artifact is deployed successfully
[2019-10-23 02:04:51,281] Artifact skeleton-starter-flow:war exploded: Deploy took 10,146 milliseconds
[http-nio-8080-exec-6] WARN com.vaadin.flow.server.DefaultDeploymentConfiguration - 
====================================================================
Vaadin is running in DEBUG MODE.
Add productionMode=true to web.xml to disable debug features.
====================================================================
[http-nio-8080-exec-6] WARN com.vaadin.flow.server.DeploymentConfigurationFactory - Found 'webpack.config.js' in the project/working directory. Will use it for webpack dev server.
[http-nio-8080-exec-8] ERROR com.vaadin.flow.server.DefaultErrorHandler - 
com.vaadin.flow.server.BootstrapException: Unable to read webpack stats file.
    at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.setupFrameworkLibraries(BootstrapHandler.java:837)
    at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.setupDocumentHead(BootstrapHandler.java:718)
    at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.getBootstrapPage(BootstrapHandler.java:521)
    at com.vaadin.flow.server.communication.WebComponentBootstrapHandler.synchronizedHandleRequest(WebComponentBootstrapHandler.java:195)
    at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
    at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1540)
    at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:246)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.FileNotFoundException: http://localhost:44103/assetsByChunkName
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1896)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
    at com.vaadin.flow.server.frontend.FrontendUtils.getStatsAssetsByChunkName(FrontendUtils.java:476)
    at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.appendNpmBundle(BootstrapHandler.java:853)
    at com.vaadin.flow.server.BootstrapHandler$BootstrapPageBuilder.setupFrameworkLibraries(BootstrapHandler.java:835)
    ... 29 more
mvysny picture mvysny on 23 Oct 2019

In my setup, the node_modules folder is not created for some reason though, when I run the project with Tomcat. I wonder what could be the case...?

mvysny picture mvysny on 23 Oct 2019

I've cleaned the whole thing with mvn clean, then I've run mvn vaadin:prepare-frontend which produced webpack.generated.js; now when I run the server in Tomcat Intellij it finally populated the node_modules folder and now the whole thing finally works.

However, when I run mvn clean, remove webpack.generated.js and node_modules and run the server in Tomcat Intellij, the webpack.generated.js is not generated, neither is node_modules and the server fails with the FileNotFoundException: http://localhost:44103/assetsByChunkName.

mvysny picture mvysny on 23 Oct 2019
👍1

If the dev server requires mvn vaadin:prepare-frontend to run, then it should say so in an Exception.

mvysny picture mvysny on 23 Oct 2019

It makes things easier and better, but by default it shouldn't require it as DevModeInitializer::initDevModeHandler should be able to collect and create all the required information and run npm etc.

caalador picture caalador on 23 Oct 2019
👍1

I had to delete manually webpack.generated.js file, rebuild with gradle (5.4.1) and it solved this issue. FYI gradle clean is not solving the issue.

aboulogne picture aboulogne on 23 Oct 2019

I've cleaned the whole thing with mvn clean, then I've run mvn vaadin:prepare-frontend which produced webpack.generated.js; now when I run the server in Tomcat Intellij it finally populated the node_modules folder and now the whole thing finally works.

However, when I run mvn clean, remove webpack.generated.js and node_modules and run the server in Tomcat Intellij, the webpack.generated.js is not generated, neither is node_modules and the server fails with the FileNotFoundException: http://localhost:44103/assetsByChunkName.

Thanks for your help

aboulogne picture aboulogne on 23 Oct 2019

When updating from vaadin 14.0.15 to 14.1.0 I had to re delete manually file "webpack.generated.js" to solve css ressource issue

aboulogne picture aboulogne on 4 Dec 2019

@aboulogne could you please explain what exact issue did you have with CSS resource? Snd, since it seems to me that this is a new issue, would you create a new issue for it and share as much info as possible about it? If you could add a minimal reproducible example, that would be great.

mehdi-vaadin picture mehdi-vaadin on 5 Dec 2019

Closing due to inactivity from author. If issue is still valid, please create a new ticket with instructions on how to reproduce the issue.

pleku picture pleku on 3 Jan 2020
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