升级到2.4版本后，datagrid动态修改数据时报错

zhuhb9277 · 2024 年12 月 10 日 03:08

升级到2.4版本后，datagrid动态修改数据时报错，2.3版本没有这个问题。
使用拖拽功能，在drop事件中修改department属性。

// 监听 personsDataGrid 拖拽到 department 节点上的操作
        departmentFragment.setNavigatorItemDropListener(department -> {
            SaveContext saveContext = new SaveContext().setDiscardSaved(true);
            for (Person person : draggedPersons) {
                person.setDepartment(department);
                saveContext.saving(person);
            }
            dataManager.unconstrained().save(saveContext);
            personsDl.load();
            personsDataGrid.deselectAll();
            NotificationUtils.success(notifications, String.format("选中人员的所属部门已设置为 【%s】", department.getFullName()));
        });

执行到person.setDepartment(department)语句时报错

java.lang.NullPointerException: Cannot invoke "com.vaadin.flow.component.Component.getElement()" because "recreatedComponent" is null
	at com.vaadin.flow.data.provider.AbstractComponentDataGenerator.refreshData(AbstractComponentDataGenerator.java:51) ~[flow-data-24.4.8.jar:24.4.8]
	at com.vaadin.flow.data.provider.CompositeDataGenerator.lambda$refreshData$2(CompositeDataGenerator.java:62) ~[flow-data-24.4.8.jar:24.4.8]
	at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[na:na]
	at com.vaadin.flow.data.provider.CompositeDataGenerator.refreshData(CompositeDataGenerator.java:62) ~[flow-data-24.4.8.jar:24.4.8]
	at com.vaadin.flow.data.provider.CompositeDataGenerator.lambda$refreshData$2(CompositeDataGenerator.java:62) ~[flow-data-24.4.8.jar:24.4.8]
	at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[na:na]
	at com.vaadin.flow.data.provider.CompositeDataGenerator.refreshData(CompositeDataGenerator.java:62) ~[flow-data-24.4.8.jar:24.4.8]
	at com.vaadin.flow.data.provider.DataCommunicator.refresh(DataCommunicator.java:405) ~[flow-data-24.4.8.jar:24.4.8]
	at io.jmix.flowui.component.delegate.AbstractGridDelegate.itemsValueChanged(AbstractGridDelegate.java:273) ~[jmix-flowui-2.4.1.jar:na]
	at io.jmix.flowui.kit.event.EventBus.fireEvent(EventBus.java:107) ~[jmix-flowui-kit-2.4.1.jar:na]
	at io.jmix.flowui.data.grid.ContainerDataGridItems.containerItemPropertyChanged(ContainerDataGridItems.java:76) ~[jmix-flowui-2.4.1.jar:na]
	at io.jmix.core.common.event.EventHub.publish(EventHub.java:172) ~[jmix-core-2.4.1.jar:na]
	at io.jmix.flowui.model.impl.InstanceContainerImpl.itemPropertyChanged(InstanceContainerImpl.java:182) ~[jmix-flowui-2.4.1.jar:na]
	at io.jmix.flowui.model.impl.CollectionContainerImpl.itemPropertyChanged(CollectionContainerImpl.java:228) ~[jmix-flowui-2.4.1.jar:na]
	at io.jmix.core.entity.BaseEntityEntry.firePropertyChanged(BaseEntityEntry.java:243) ~[jmix-core-2.4.1.jar:na]
	at io.jmix.core.impl.EntityInternals.fireListeners(EntityInternals.java:90) ~[jmix-core-2.4.1.jar:na]
	at com.gense.ips.entity.sys.Person.setName(Person.java:145) ~[main/:na]
	at com.gense.ips.view.sys.person.PersonListView.lambda$onInit$1(PersonListView.java:84) ~[main/:na]
	at com.gense.ips.view.sys.department.DepartmentFragment.onDepartmentsDataGridGridDrop(DepartmentFragment.java:107) ~[main/:na]
	at com.vaadin.flow.component.ComponentEventBus.fireEventForListener(ComponentEventBus.java:239) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.component.ComponentEventBus.handleDomEvent(ComponentEventBus.java:488) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.component.ComponentEventBus.lambda$addDomTrigger$dd1b7957$1(ComponentEventBus.java:298) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.internal.nodefeature.ElementListenerMap.lambda$fireEvent$2(ElementListenerMap.java:473) ~[flow-server-24.4.8.jar:24.4.8]
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
	at com.vaadin.flow.internal.nodefeature.ElementListenerMap.fireEvent(ElementListenerMap.java:473) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.server.communication.rpc.EventRpcHandler.handleNode(EventRpcHandler.java:62) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.server.communication.rpc.AbstractRpcInvocationHandler.handle(AbstractRpcInvocationHandler.java:73) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocationData(ServerRpcHandler.java:475) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.server.communication.ServerRpcHandler.lambda$handleInvocations$5(ServerRpcHandler.java:456) ~[flow-server-24.4.8.jar:24.4.8]
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
	at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:456) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:324) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:114) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1584) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:398) ~[flow-server-24.4.8.jar:24.4.8]
	at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:106) ~[vaadin-spring-24.4.8.jar:na]
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:614) ~[jakarta.servlet-api-6.0.0.jar:6.0.0]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:632) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:408) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:303) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:267) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:142) ~[spring-webmvc-6.1.14.jar:6.1.14]
	at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:178) ~[spring-webmvc-6.1.14.jar:6.1.14]
	at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:51) ~[spring-webmvc-6.1.14.jar:6.1.14]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1089) ~[spring-webmvc-6.1.14.jar:6.1.14]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979) ~[spring-webmvc-6.1.14.jar:6.1.14]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-6.1.14.jar:6.1.14]
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:914) ~[spring-webmvc-6.1.14.jar:6.1.14]
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:547) ~[jakarta.servlet-api-6.0.0.jar:6.0.0]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) ~[spring-webmvc-6.1.14.jar:6.1.14]
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:614) ~[jakarta.servlet-api-6.0.0.jar:6.0.0]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) ~[tomcat-embed-websocket-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at io.jmix.core.impl.logging.LogMdcFilter.doFilterInternal(LogMdcFilter.java:28) ~[jmix-core-2.4.1.jar:na]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.14.jar:6.1.14]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:108) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:365) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:131) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:85) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:110) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:101) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:179) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:151) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:129) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:227) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:221) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:107) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:93) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:117) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:91) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.context.SecurityContextHolderFilter.doFilter(SecurityContextHolderFilter.java:82) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.context.SecurityContextHolderFilter.doFilter(SecurityContextHolderFilter.java:69) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:62) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.session.DisableEncodeUrlFilter.doFilterInternal(DisableEncodeUrlFilter.java:42) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:233) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:191) ~[spring-security-web-6.3.4.jar:6.3.4]
	at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:113) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.web.servlet.handler.HandlerMappingIntrospector.lambda$createCacheFilter$3(HandlerMappingIntrospector.java:195) ~[spring-webmvc-6.1.14.jar:6.1.14]
	at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:113) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.web.filter.CompositeFilter.doFilter(CompositeFilter.java:74) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.security.config.annotation.web.configuration.WebMvcSecurityConfiguration$CompositeFilterChainProxy.doFilter(WebMvcSecurityConfiguration.java:230) ~[spring-security-config-6.3.4.jar:6.3.4]
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:362) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:278) ~[spring-web-6.1.14.jar:6.1.14]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.14.jar:6.1.14]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.14.jar:6.1.14]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-6.1.14.jar:6.1.14]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.14.jar:6.1.14]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:90) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:41002) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:384) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:905) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1190) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) ~[tomcat-embed-core-10.1.31.jar:10.1.31]
	at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]

zhuhb9277 · 2024 年12 月 10 日 03:09

java.lang.NullPointerException: Cannot invoke "com.vaadin.flow.component.Component.getElement()" because "recreatedComponent" is null
	at com.vaadin.flow.data.provider.AbstractComponentDataGenerator.refreshData(AbstractComponentDataGenerator.java:51)
	at com.vaadin.flow.data.provider.CompositeDataGenerator.lambda$refreshData$2(CompositeDataGenerator.java:62)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at com.vaadin.flow.data.provider.CompositeDataGenerator.refreshData(CompositeDataGenerator.java:62)
	at com.vaadin.flow.data.provider.CompositeDataGenerator.lambda$refreshData$2(CompositeDataGenerator.java:62)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at com.vaadin.flow.data.provider.CompositeDataGenerator.refreshData(CompositeDataGenerator.java:62)
	at com.vaadin.flow.data.provider.DataCommunicator.refresh(DataCommunicator.java:405)
	at io.jmix.flowui.component.delegate.AbstractGridDelegate.itemsValueChanged(AbstractGridDelegate.java:273)
	at io.jmix.flowui.kit.event.EventBus.fireEvent(EventBus.java:107)
	at io.jmix.flowui.data.grid.ContainerDataGridItems.containerItemPropertyChanged(ContainerDataGridItems.java:76)
	at io.jmix.core.common.event.EventHub.publish(EventHub.java:172)
	at io.jmix.flowui.model.impl.InstanceContainerImpl.itemPropertyChanged(InstanceContainerImpl.java:182)
	at io.jmix.flowui.model.impl.CollectionContainerImpl.itemPropertyChanged(CollectionContainerImpl.java:228)
	at io.jmix.core.entity.BaseEntityEntry.firePropertyChanged(BaseEntityEntry.java:243)
	at io.jmix.core.impl.EntityInternals.fireListeners(EntityInternals.java:90)
	at com.gense.ips.entity.sys.Person.setName(Person.java:145)
	at com.gense.ips.view.sys.person.PersonListView.lambda$onInit$1(PersonListView.java:84)
	at com.gense.ips.view.sys.department.DepartmentFragment.onDepartmentsDataGridGridDrop(DepartmentFragment.java:107)
	at com.vaadin.flow.component.ComponentEventBus.fireEventForListener(ComponentEventBus.java:239)
	at com.vaadin.flow.component.ComponentEventBus.handleDomEvent(ComponentEventBus.java:488)
	at com.vaadin.flow.component.ComponentEventBus.lambda$addDomTrigger$dd1b7957$1(ComponentEventBus.java:298)
	at com.vaadin.flow.internal.nodefeature.ElementListenerMap.lambda$fireEvent$2(ElementListenerMap.java:473)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at com.vaadin.flow.internal.nodefeature.ElementListenerMap.fireEvent(ElementListenerMap.java:473)
	at com.vaadin.flow.server.communication.rpc.EventRpcHandler.handleNode(EventRpcHandler.java:62)
	at com.vaadin.flow.server.communication.rpc.AbstractRpcInvocationHandler.handle(AbstractRpcInvocationHandler.java:73)
	at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocationData(ServerRpcHandler.java:475)
	at com.vaadin.flow.server.communication.ServerRpcHandler.lambda$handleInvocations$5(ServerRpcHandler.java:456)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:456)
	at com.vaadin.flow.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:324)
	at com.vaadin.flow.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:114)
	at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
	at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1584)
	at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:398)
	at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:106)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:614)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:632)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:408)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:303)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:267)
	at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:142)
	at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:178)
	at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:51)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1089)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:914)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:547)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:614)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at io.jmix.core.impl.logging.LogMdcFilter.doFilterInternal(LogMdcFilter.java:28)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:108)
	at org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:365)
	at org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:131)
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:85)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:110)
	at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:101)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:179)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:151)
	at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:129)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:227)
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:221)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:107)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:93)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:117)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:91)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	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:116)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.context.SecurityContextHolderFilter.doFilter(SecurityContextHolderFilter.java:82)
	at org.springframework.security.web.context.SecurityContextHolderFilter.doFilter(SecurityContextHolderFilter.java:69)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:62)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.session.DisableEncodeUrlFilter.doFilterInternal(DisableEncodeUrlFilter.java:42)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:233)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:191)
	at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:113)
	at org.springframework.web.servlet.handler.HandlerMappingIntrospector.lambda$createCacheFilter$3(HandlerMappingIntrospector.java:195)
	at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:113)
	at org.springframework.web.filter.CompositeFilter.doFilter(CompositeFilter.java:74)
	at org.springframework.security.config.annotation.web.configuration.WebMvcSecurityConfiguration$CompositeFilterChainProxy.doFilter(WebMvcSecurityConfiguration.java:230)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:362)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:278)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
	at org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:90)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:41002)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:384)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:905)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1190)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
	at java.base/java.lang.Thread.run(Thread.java:833)

liren.xu · 2024 年12 月 10 日 03:40

你给的堆栈里面有这么一段：

似乎是跟 PersonListView 的 Person.setName 有关，似乎这个人员的姓名组件不存在。

zhuhb9277 · 2024 年12 月 10 日 03:44

我调试的时候有一句：person.setName(“123”)，
2.4版本似乎在修改datagrid中的数据时，会自动将变化放映到UI中，异常是itemPropertyChanged报出来的。
同样的修改数据，在treegrid中就没有这个问题。

zhuhb9277 · 2024 年12 月 10 日 04:18

在其他事件中，只要试图修改datagrid中对象的属性，都会报这个错。

    @Subscribe("personsDataGrid")
    public void onPersonsDataGridSelection(final SelectionEvent<DataGrid<Person>, Person> event) {
        event.getFirstSelectedItem().ifPresent(person -> person.setName(person.getName() + "1"));
    }

zhuhb9277 · 2024 年12 月 10 日 04:45

重新加载对象后再修改属性，没有异常了。

zhuhb9277 · 2024 年12 月 10 日 04:47

draggedPersons是通过drop事件获取的。

直接对这个集合中的对象修改属性，就报上述异常。datagrid中加载的对象和dataManager重新加载的对象有什么不同吗？直接修改datagrid中加载的对象属性，会fire事件itemPropertyChanged，异常就是这个事件报出来的。

liren.xu · 2024 年12 月 10 日 08:50

不同就是一个在数据容器内（datagrid 中的数据），一个不在数据容器内（dataManager）。而只有数据容器内的数据变化会触发 itemPropertyChanged 事件。

这个看上去像是 bug，等我看看。

zhuhb9277 · 2024 年12 月 10 日 10:38

我发现在表单提交后（通过datagrid的编辑按钮进行编辑）也会出现这个问题，但不是每次提交都出现，在PersonDetailView中，将person.active(Boolean)改为false提交，不报错，改为true提交时报这个错。
表单提交后也会触发datagrid中数据的修改，但不知为什么这个异常有时出现，有时又能正常刷新datagrid数据。

liren.xu · 2024 年12 月 11 日 07:49

我的下列代码没有出现这个问题：

@Subscribe("ordersDataGrid")
public void onOrdersDataGridSelection(final SelectionEvent<DataGrid<Order>, Order> event) {
    event.getFirstSelectedItem().ifPresent(order -> order.setName(order.getName()+"1"));
}

你能提供一个重现该问题的小项目吗？