com.vaadin.event.ListenerMethod$MethodException

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    • com.vaadin.event.ListenerMethod$MethodException: Invocation of method valueChange in org.activiti.explorer.ui.task.TaskPage$1 failed. at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:530) at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164) at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1219) at com.vaadin.ui.AbstractField.fireValueChange(AbstractField.java:897) at com.vaadin.ui.AbstractField.setValue(AbstractField.java:529) at com.vaadin.ui.AbstractSelect.setValue(AbstractSelect.java:676) at com.vaadin.ui.AbstractSelect.setValue(AbstractSelect.java:645) at com.vaadin.ui.Table.setValue(Table.java:3572) at com.vaadin.ui.AbstractSelect.select(AbstractSelect.java:1422) at org.activiti.explorer.ui.AbstractTablePage.selectElement(AbstractTablePage.java:81) at org.activiti.explorer.ui.task.TaskPage.initUi(TaskPage.java:70) at org.activiti.explorer.ui.AbstractPage.attach(AbstractPage.java:43) at com.vaadin.ui.AbstractComponent.setParent(AbstractComponent.java:560) at com.vaadin.ui.AbstractComponentContainer.addComponent(AbstractComponentContainer.java:211) at com.vaadin.ui.CssLayout.addComponent(CssLayout.java:95) at org.activiti.explorer.ui.mainlayout.MainLayout.setMainContent(MainLayout.java:58) at org.activiti.explorer.ui.MainWindow.switchView(MainWindow.java:79) at org.activiti.explorer.DefaultViewManager.switchView(DefaultViewManager.java:342) at org.activiti.explorer.DefaultViewManager.showInboxPage(DefaultViewManager.java:172) at org.activiti.explorer.DefaultViewManager.showDefaultPage(DefaultViewManager.java:90) at org.activiti.explorer.ui.login.LoginPage$ActivitiLoginListener.onLogin(LoginPage.java:102) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:510) at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:164) at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1219) at com.vaadin.ui.LoginForm$2.handleParameters(LoginForm.java:103) at com.vaadin.ui.Window.handleParameters(Window.java:515) at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:528) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.activiti.explorer.filter.ExplorerFilter.doFilter(ExplorerFilter.java:44) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.NullPointerException at org.activiti.engine.impl.cmd.GetIdentityLinksForTaskCmd.execute(GetIdentityLinksForTaskCmd.java:47) at org.activiti.engine.impl.cmd.GetIdentityLinksForTaskCmd.execute(GetIdentityLinksForTaskCmd.java:31) at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24) at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:61) at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:42) at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130) at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:40) at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31) at org.activiti.engine.impl.TaskServiceImpl.getIdentityLinksForTask(TaskServiceImpl.java:154) at org.activiti.explorer.ui.task.TaskInvolvedPeopleComponent.initInvolvedPeople(TaskInvolvedPeopleComponent.java:183) at org.activiti.explorer.ui.task.TaskInvolvedPeopleComponent.populatePeopleGrid(TaskInvolvedPeopleComponent.java:151) at org.activiti.explorer.ui.task.TaskInvolvedPeopleComponent.initPeopleGrid(TaskInvolvedPeopleComponent.java:145) at org.activiti.explorer.ui.task.TaskInvolvedPeopleComponent.initUi(TaskInvolvedPeopleComponent.java:82)

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