Entity继承父类类会找不到主键以及父类的属性无法赋值，就是父类的值无法继承。
修改和删除也会出问题
错误信息
com.vaadin.server.ServerRpcManager$RpcInvocationException: Unable to invoke method click in com.vaadin.shared.ui.button.ButtonServerRpc
at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:157) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:115) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
at com.vaadin.server.communication.ServerRpcHandler.handleInvocation(ServerRpcHandler.java:442) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:407) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:275) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:83) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1636) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:465) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750) ~[javax.servlet-api-4.0.1.jar:4.0.1]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.71.jar:9.0.71]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at io.jmix.core.impl.logging.LogMdcFilter.doFilterInternal(LogMdcFilter.java:28) ~[jmix-core-2.0.999-SNAPSHOT.jar:na]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.25.jar:5.3.25]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:337) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:122) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:116) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:109) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:141) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:97) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:147) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:125) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.25.jar:5.3.25]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:112) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:82) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.25.jar:5.3.25]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.session.DisableEncodeUrlFilter.doFilterInternal(DisableEncodeUrlFilter.java:42) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.25.jar:5.3.25]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:221) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:186) ~[spring-security-web-5.7.6.jar:5.7.6]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) ~[spring-web-5.3.25.jar:5.3.25]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) ~[spring-web-5.3.25.jar:5.3.25]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.25.jar:5.3.25]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.25.jar:5.3.25]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.25.jar:5.3.25]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.25.jar:5.3.25]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.25.jar:5.3.25]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.25.jar:5.3.25]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:177) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:891) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1784) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.71.jar:9.0.71]
at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]
Caused by: java.lang.reflect.InvocationTargetException: null
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:153) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
... 90 common frames omitted
Caused by: java.lang.IllegalStateException: Entity bookstore_Position has no primary key
at io.jmix.data.impl.JpqlQueryBuilder.getPrimaryKeyProperty(JpqlQueryBuilder.java:320) ~[jmix-data-2.0.999-SNAPSHOT.jar:na]
at io.jmix.data.impl.JpqlQueryBuilder.buildResultQuery(JpqlQueryBuilder.java:208) ~[jmix-data-2.0.999-SNAPSHOT.jar:na]
at io.jmix.data.impl.JpqlQueryBuilder.getResultQueryString(JpqlQueryBuilder.java:157) ~[jmix-data-2.0.999-SNAPSHOT.jar:na]
at io.jmix.data.impl.JpqlQueryBuilder.getQuery(JpqlQueryBuilder.java:170) ~[jmix-data-2.0.999-SNAPSHOT.jar:na]
at io.jmix.eclipselink.impl.JpaDataStore.createQuery(JpaDataStore.java:492) ~[jmix-eclipselink-2.0.999-SNAPSHOT.jar:na]
at io.jmix.eclipselink.impl.JpaDataStore.loadOne(JpaDataStore.java:142) ~[jmix-eclipselink-2.0.999-SNAPSHOT.jar:na]
at io.jmix.core.datastore.AbstractDataStore.load(AbstractDataStore.java:86) ~[jmix-core-2.0.999-SNAPSHOT.jar:na]
at io.jmix.core.impl.UnconstrainedDataManagerImpl.load(UnconstrainedDataManagerImpl.java:97) ~[jmix-core-2.0.999-SNAPSHOT.jar:na]
at io.jmix.eclipselink.impl.lazyloading.SingleValueOwningPropertyHolder.loadValue(SingleValueOwningPropertyHolder.java:61) ~[jmix-eclipselink-2.0.999-SNAPSHOT.jar:na]
at io.jmix.eclipselink.impl.lazyloading.AbstractValueHolder.getValue(AbstractValueHolder.java:275) ~[jmix-eclipselink-2.0.999-SNAPSHOT.jar:na]
at io.jmix.bookstore.employee.Employee._persistence_get_position(Employee.java) ~[main/:na]
at io.jmix.bookstore.employee.Employee.getPosition(Employee.java:87) ~[main/:na]
at io.jmix.bookstore.screen.main.MainScreen.translatedPosition(MainScreen.java:219) ~[main/:na]
at io.jmix.bookstore.screen.main.MainScreen.lambda$initMainScreenUserAvatar$0(MainScreen.java:207) ~[main/:na]
at java.base/java.util.Optional.ifPresent(Optional.java:178) ~[na:na]
at io.jmix.bookstore.screen.main.MainScreen.initMainScreenUserAvatar(MainScreen.java:206) ~[main/:na]
at io.jmix.bookstore.screen.main.MainScreen.onAfterShow(MainScreen.java:106) ~[main/:na]
at io.jmix.core.common.event.EventHub.publish(EventHub.java:170) ~[jmix-core-2.0.999-SNAPSHOT.jar:na]
at io.jmix.ui.screen.Screen.fireEvent(Screen.java:124) ~[jmix-ui-2.0.999-SNAPSHOT.jar:na]
at io.jmix.ui.screen.UiControllerUtils.fireEvent(UiControllerUtils.java:58) ~[jmix-ui-2.0.999-SNAPSHOT.jar:na]
at io.jmix.ui.sys.ScreensImpl.fireScreenAfterShowEvent(ScreensImpl.java:1369) ~[jmix-ui-2.0.999-SNAPSHOT.jar:na]
at io.jmix.ui.sys.ScreensImpl.show(ScreensImpl.java:390) ~[jmix-ui-2.0.999-SNAPSHOT.jar:na]
at io.jmix.ui.screen.Screen.show(Screen.java:306) ~[jmix-ui-2.0.999-SNAPSHOT.jar:na]
at io.jmix.securityui.authentication.LoginScreenSupport.showMainScreen(LoginScreenSupport.java:235) ~[jmix-security-ui-2.0.999-SNAPSHOT.jar:na]
at io.jmix.securityui.authentication.LoginScreenSupport.onSuccessfulAuthentication(LoginScreenSupport.java:198) ~[jmix-security-ui-2.0.999-SNAPSHOT.jar:na]
at io.jmix.securityui.authentication.LoginScreenSupport.authenticate(LoginScreenSupport.java:172) ~[jmix-security-ui-2.0.999-SNAPSHOT.jar:na]
at io.jmix.bookstore.screen.login.LoginScreen.performLogin(LoginScreen.java:180) ~[main/:na]
at io.jmix.bookstore.screen.login.LoginScreen.login(LoginScreen.java:174) ~[main/:na]
at io.jmix.bookstore.screen.login.LoginScreen.onSubmitActionPerformed(LoginScreen.java:149) ~[main/:na]
at io.jmix.core.common.event.EventHub.publish(EventHub.java:170) ~[jmix-core-2.0.999-SNAPSHOT.jar:na]
at io.jmix.ui.action.BaseAction.actionPerform(BaseAction.java:220) ~[jmix-ui-2.0.999-SNAPSHOT.jar:na]
at io.jmix.ui.component.impl.ButtonImpl.buttonClicked(ButtonImpl.java:75) ~[jmix-ui-2.0.999-SNAPSHOT.jar:na]
at io.jmix.ui.widget.JmixButton.fireClick(JmixButton.java:77) ~[jmix-ui-2.0.999-SNAPSHOT.jar:na]
at com.vaadin.ui.Button$1.click(Button.java:57) ~[vaadin-server-8.14.3-1-jmix.jar:8.14.3-1-jmix]
... 95 common frames omitted
