Application is not running with exception: Failed to load the widgetset

Support
#1

My application is throwing the following exception which was running well before.

Failed to load the widgetset: ./VAADIN/widgetsets/com.myapp.web.toolkit.ui.AppWidgetSet/com.myapp.web.toolkit.ui.AppWidgetSet.nocache.js?1566173863769

Catalina.out

    Aug 18, 2019 8:17:43 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [app_servlet] in context with path [/myapp] threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for this response
	at org.apache.catalina.connector.Response.getWriter(Response.java:582)
	at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:227)
	at com.haulmont.cuba.web.sys.CubaApplicationServlet.handleServerError(CubaApplicationServlet.java:395)
	at com.haulmont.cuba.web.sys.CubaApplicationServlet.service(CubaApplicationServlet.java:219)
	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.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:107)
	at org.springframework.web.filter.CompositeFilter.doFilter(CompositeFilter.java:73)
	at com.haulmont.cuba.web.sys.CubaHttpFilter.doFilter(CubaHttpFilter.java:108)
	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: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.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)

In order to resolve this, I did the following as suggested here.

  • Clean
  • Assemble
  • Deploy

Before doing the above, I have generated the database script to make sure there are no nongenerated tables.

But no change, same error.

Looking forward for any suggestion to resolve this issue.

1 Like
#2

I rolled back from platform 7.0.10 to 7.0.9 and now working again. Therefore, this seems to be a bug in platform version 7.0.10

regards
Mortoza

#3

Hi, please look for more errors in log / attach the whole log here.

#4

Hi Vlad
It was working but now it is not anymore and I am getting the same error message as follows:

Failed to load the widgetset: ./VAADIN/widgetsets/com.myapp.web.toolkit.ui.AppWidgetSet/com.myapp.web.toolkit.ui.AppWidgetSet.nocache.js?1566962937073

Please find attached the log file.
perfstat-ui.log (1.0 KB) catalina.2019-08-27.log (2.2 KB) app.log (15.7 KB) localhost_access_log.2019-08-27.txt (484 Bytes) perfstat.log (2.0 KB)

I have removed the build folder and rebuild it but it is still the same.

#6

Hi Vlad
Any suggestions?

regards