Getter mismatch causing NPE during entity loading

[owlet1997]

based on the forum's question

Environment

CUBA Platform version: 7.2.18
CUBA Studio plugin version: 15.8-213
IntelliJ version: IntelliJ IDEA 2021.3.2 (Ultimate Edition)
OS Ubuntu 20.04 LTS

TC:

1. Open the attached project
2. Run an application -> Login as admin
3. New Entities -> Create

AR:
NullPointerException occurs:

java.lang.NullPointerException
	at com.company.frm.entity.TestEntity.isDebit(TestEntity.java:51)
	at com.haulmont.chile.core.model.impl.AbstractInstance.getValue(AbstractInstance.java:108)
	at com.haulmont.cuba.core.entity.BaseGenericIdEntity.getValue(BaseGenericIdEntity.java:146)
	at com.haulmont.cuba.gui.model.impl.DataContextImpl.mergeState(DataContextImpl.java:267)
	at com.haulmont.cuba.gui.model.impl.DataContextImpl.internalMerge(DataContextImpl.java:217)
	at com.haulmont.cuba.gui.model.impl.DataContextImpl.merge(DataContextImpl.java:162)
	at com.haulmont.cuba.gui.model.impl.DataContextImpl.merge(DataContextImpl.java:171)
	at com.haulmont.cuba.gui.screen.StandardEditor.setupEntityToEdit(StandardEditor.java:197)
	at com.haulmont.cuba.gui.screen.StandardEditor.beforeShow(StandardEditor.java:121)
	at com.haulmont.bali.events.EventHub.publish(EventHub.java:170)
	at com.haulmont.cuba.gui.screen.Screen.fireEvent(Screen.java:128)
	at com.haulmont.cuba.gui.screen.UiControllerUtils.fireEvent(UiControllerUtils.java:60)
	at com.haulmont.cuba.web.sys.WebScreens.show(WebScreens.java:445)
	at com.haulmont.cuba.gui.screen.Screen.show(Screen.java:309)
	at com.haulmont.cuba.gui.actions.list.CreateAction.execute(CreateAction.java:345)
	at com.haulmont.cuba.gui.actions.list.CreateAction.actionPerform(CreateAction.java:287)
	at com.haulmont.cuba.web.gui.components.WebButton.buttonClicked(WebButton.java:67)
	at com.haulmont.cuba.web.widgets.CubaButton.fireClick(CubaButton.java:76)
	at com.vaadin.ui.Button$1.click(Button.java:57)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:153)
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:115)
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocation(ServerRpcHandler.java:442)
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:407)
	at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:275)
	at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:83)
	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1636)
	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:465)
	at com.haulmont.cuba.web.sys.CubaApplicationServlet.serviceAppRequest(CubaApplicationServlet.java:329)
	at com.haulmont.cuba.web.sys.CubaApplicationServlet.service(CubaApplicationServlet.java:215)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:108)
	at org.springframework.web.filter.CompositeFilter.doFilter(CompositeFilter.java:74)
	at com.haulmont.cuba.web.sys.CubaHttpFilter.doFilter(CubaHttpFilter.java:93)
	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:202)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)

the method isDebit is called instead of getter method getDebit:

frm161.zip