.FlowableObjectNotFoundException

Steps to reproduce:
Open the list of pocess instances, go to process instance editor, assign a task to yourself, go to “my tasks” (and refresh), complete the task and return to “process instance editor” click on any item of the “executions tree” and you get

com.haulmont.cuba.core.global.RemoteException:
org.flowable.common.engine.api.FlowableObjectNotFoundException: execution b4c4d55e-b6c8-434b-664b-dd1c7102669e doesn't exist
	at com.haulmont.cuba.core.sys.ServiceInterceptor.aroundInvoke(ServiceInterceptor.java:124)
	at sun.reflect.GeneratedMethodAccessor223.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)
	at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
	at com.sun.proxy.$Proxy319.getVariableInstancesLocal(Unknown Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.haulmont.cuba.core.sys.remoting.LocalServiceInvokerImpl.invoke(LocalServiceInvokerImpl.java:94)
	at com.haulmont.cuba.web.sys.remoting.LocalServiceProxy$LocalServiceInvocationHandler.invoke(LocalServiceProxy.java:154)
	at com.sun.proxy.$Proxy498.getVariableInstancesLocal(Unknown Source)
	at com.haulmont.addon.bproc.web.screens.processinstance.runtimefragment.ProcessInstanceEditRuntimeFragment.fillVariablesDc(ProcessInstanceEditRuntimeFragment.java:148)
	at com.haulmont.addon.bproc.web.screens.processinstance.runtimefragment.ProcessInstanceEditRuntimeFragment.onExecutionsDcItemChange(ProcessInstanceEditRuntimeFragment.java:228)
	at com.haulmont.bali.events.EventHub.publish(EventHub.java:170)
	at com.haulmont.cuba.gui.model.impl.InstanceContainerImpl.fireItemChanged(InstanceContainerImpl.java:163)
	at com.haulmont.cuba.gui.model.impl.InstanceContainerImpl.setItem(InstanceContainerImpl.java:94)
	at com.haulmont.cuba.gui.model.impl.CollectionContainerImpl.setItem(CollectionContainerImpl.java:61)
	at com.haulmont.cuba.gui.components.data.tree.ContainerTreeItems.setSelectedItem(ContainerTreeItems.java:76)
	at com.haulmont.cuba.web.gui.components.WebTree.onSelectionChange(WebTree.java:955)
	at com.vaadin.ui.components.grid.SingleSelectionModel.lambda$addSelectionListener$91fe6b9f$1(SingleSelectionModel.java:56)
	at sun.reflect.GeneratedMethodAccessor299.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:496)
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:273)
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:237)
	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1041)
	at com.vaadin.ui.components.grid.SingleSelectionModelImpl.setSelectedFromClient(SingleSelectionModelImpl.java:158)
	at com.vaadin.ui.components.grid.SingleSelectionModelImpl$1.select(SingleSelectionModelImpl.java:52)
	at sun.reflect.GeneratedMethodAccessor399.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:153)
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:115)
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocation(ServerRpcHandler.java:431)
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:396)
	at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:260)
	at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:82)
	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1577)
	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:425)
	at com.haulmont.cuba.web.sys.CubaApplicationServlet.serviceAppRequest(CubaApplicationServlet.java:329)
	at com.haulmont.cuba.web.sys.CubaApplicationServlet.service(CubaApplicationServlet.java:215)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:107)
	at org.springframework.web.filter.CompositeFilter.doFilter(CompositeFilter.java:73)
	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:199)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
	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)

Probably because we are still in the runtime tab that is grayed ou when you re-enter the screen. So probably a screen refresh issue.

By completing the task you’ve modified the process instance state. It has another set of executions after you complete the task from some other screen. I’m not sure that we can automatically refresh the content of the process instance editor after the task is completed from anywhere, but maybe we can handle such cases and display some other error message.