янв 28, 2020 12:54:23 PM com.vaadin.server.DefaultErrorHandler doDefault
SEVERE:
java.lang.IllegalArgumentException: Cannot format given Object as a Number
	at java.text.DecimalFormat.format(Unknown Source)
	at java.text.Format.format(Unknown Source)
	at ru.hrs.lassd.club.vaadin.views.menuitem.GroupTrainingView.setContent(GroupTrainingView.java:120)
	at ru.hrs.lassd.club.vaadin.views.menuitem.ContentEditor.setContent(ContentEditor.java:86)
	at ru.hrs.lassd.club.vaadin.views.MenuItemView.lambda$new$0(MenuItemView.java:73)
	at ru.hrs.lassd.club.vaadin.views.MenuItemView.lambda$new$92fd748d$1(MenuItemView.java:104)
	at sun.reflect.GeneratedMethodAccessor352.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508)
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:198)
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161)
	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1008)
	at com.vaadin.ui.AbstractField.fireValueChange(AbstractField.java:1159)
	at com.vaadin.ui.AbstractField.setValue(AbstractField.java:570)
	at com.vaadin.ui.AbstractSelect.setValue(AbstractSelect.java:732)
	at com.vaadin.ui.AbstractField.setValue(AbstractField.java:468)
	at com.vaadin.ui.AbstractSelect.changeVariables(AbstractSelect.java:541)
	at com.vaadin.ui.Table.changeVariables(Table.java:2976)
	at com.vaadin.ui.TreeTable.changeVariables(TreeTable.java:431)
	at com.vaadin.server.communication.ServerRpcHandler.changeVariables(ServerRpcHandler.java:603)
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:422)
	at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:273)
	at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:79)
	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:41)
	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1409)
	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:364)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
	at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:476)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1410)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Unknown Source)