Migration from Cuba Screens: ClassCastException

Hello,

Any idea what could be the reason here and how to fix this issue:

java.lang.ClassCastException: class io.jmix.ui.xml.layout.loader.ComponentLoaderContext cannot be cast to class com.haulmont.cuba.gui.xml.layout.loaders.ComponentLoaderContext (io.jmix.ui.xml.layout.loader.ComponentLoaderContext and com.haulmont.cuba.gui.xml.layout.loaders.ComponentLoaderContext are in unnamed module of loader 'app')
	at com.haulmont.cuba.gui.xml.layout.loaders.CubaLabelLoader.loadData(CubaLabelLoader.java:46)
	at com.haulmont.cuba.gui.xml.layout.loaders.CubaLabelLoader.loadData(CubaLabelLoader.java:30)
	at io.jmix.ui.xml.layout.loader.LabelLoader.loadComponent(LabelLoader.java:33)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponents(ContainerLoader.java:36)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponentsAndExpand(ContainerLoader.java:74)
	at io.jmix.ui.xml.layout.loader.AbstractBoxLoader.loadComponent(AbstractBoxLoader.java:49)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponents(ContainerLoader.java:36)
	at io.jmix.ui.xml.layout.loader.CssLayoutLoader.loadComponent(CssLayoutLoader.java:56)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponents(ContainerLoader.java:36)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponentsAndExpand(ContainerLoader.java:74)
	at io.jmix.ui.xml.layout.loader.FragmentLoader.loadComponent(FragmentLoader.java:86)
	at io.jmix.ui.xml.layout.loader.FragmentComponentLoader.loadComponent(FragmentComponentLoader.java:175)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponents(ContainerLoader.java:36)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponentsAndExpand(ContainerLoader.java:74)
	at io.jmix.ui.xml.layout.loader.AbstractBoxLoader.loadComponent(AbstractBoxLoader.java:49)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponents(ContainerLoader.java:36)
	at io.jmix.ui.xml.layout.loader.SplitPanelLoader.loadComponent(SplitPanelLoader.java:75)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponents(ContainerLoader.java:36)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponentsAndExpand(ContainerLoader.java:74)
	at io.jmix.ui.xml.layout.loader.AbstractBoxLoader.loadComponent(AbstractBoxLoader.java:49)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponents(ContainerLoader.java:36)
	at io.jmix.ui.xml.layout.loader.ContainerLoader.loadSubComponentsAndExpand(ContainerLoader.java:74)
	at io.jmix.ui.xml.layout.loader.WindowLoader.loadComponent(WindowLoader.java:85)
	at io.jmix.ui.sys.ScreensImpl.loadWindowFromXml(ScreensImpl.java:319)
	at com.haulmont.cuba.web.sys.CubaScreens.loadWindowFromXml(CubaScreens.java:555)
	at io.jmix.ui.sys.ScreensImpl.createScreen(ScreensImpl.java:204)
	at io.jmix.ui.sys.ScreensImpl.create(ScreensImpl.java:145)
	at io.jmix.ui.menu.MenuItemCommands$ScreenCommand.createScreen(MenuItemCommands.java:306)
	at com.haulmont.cuba.web.sys.CubaMenuItemCommands$CubaScreenCommand.createScreen(CubaMenuItemCommands.java:136)
	at io.jmix.ui.menu.MenuItemCommands$ScreenCommand.run(MenuItemCommands.java:242)
	at io.jmix.ui.menu.SideMenuBuilder$MenuCommandExecutor.accept(SideMenuBuilder.java:272)
	at io.jmix.ui.menu.SideMenuBuilder$MenuCommandExecutor.accept(SideMenuBuilder.java:257)
	at io.jmix.ui.component.mainwindow.impl.SideMenuImpl$MenuItemImpl.menuSelected(SideMenuImpl.java:587)
	at io.jmix.ui.widget.JmixSideMenu$1.menuItemTriggered(JmixSideMenu.java:91)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:153)
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:115)
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocation(ServerRpcHandler.java:442)
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:407)
	at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:275)
	at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:83)
	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1636)
	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:465)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:327)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:121)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126)
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:105)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:101)
	at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:92)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:147)
	at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:125)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90)
	at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110)
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:211)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:183)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)

Thanks,
Samy

1 Like

Hello!

It seems that you use fragment with CUBA schema in screen with Jmix schema. In this case, the screen uses Jmix ComponentLoaderContext and CUBA components from the fragment can fail to load.

You can try to migrate your fragment to the Jmix schema:

<fragment xmlns="http://jmix.io/schema/ui/fragment">
   ...
</fragment>

With this schema fragment will load Jmix instances of components.

2 Likes