I created a very simple process in Activiti, imported it to the designer assigned some tasks and created a deployment. When I try to deploy the bar file I get the followin log in catalina and I would like to know what the problem is as I do not understand the nullpointer exception thing.
Can anyone help me?
05-Apr-2016 15:21:00.024 SEVERE [http-nio-80-exec-4] com.vaadin.Application.terminalError Terminal error: com.vaadin.event.ListenerMethod$MethodException: Invocation of method uploadFinished in org.activiti.explorer.ui.custom.UploadComponent 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.Upload.fireUploadInterrupted(Upload.java:731) at com.vaadin.ui.Upload$1.streamingFailed(Upload.java:1037) at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.streamToReceiver(AbstractCommunicationManager.java:619) at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleSimpleMultipartFileUpload(AbstractCommunicationManager.java:476) at com.vaadin.terminal.gwt.server.CommunicationManager.handleFileUpload(CommunicationManager.java:259) at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:495) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.activiti.explorer.filter.ExplorerFilter.doFilter(ExplorerFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.NullPointerException at org.activiti.explorer.ui.management.deployment.DeploymentUploadReceiver.showUploadedDeployment(DeploymentUploadReceiver.java:114) at org.activiti.explorer.ui.management.deployment.DeploymentUploadReceiver.uploadFinished(DeploymentUploadReceiver.java:73) at org.activiti.explorer.ui.custom.UploadComponent.uploadFinished(UploadComponent.java:197) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:510) … 33 more