Hi,
I have a problem when using the ApplicationConnection class to monitor the performance of my application.
Here is my Code :
long startTime = System.currentTimeMillis();
//Traitement
long endTime = System.currentTimeMillis();
ApplicationConnection.getConsole().log("Exec time: " + (endTime-startTime));
When I run it, I catch this exception :
com.vaadin.event.ListenerMethod$MethodException
Cause: java.lang.NoClassDefFoundError: com/google/gwt/user/client/Timer
at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:507)
at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161)
at com.vaadin.ui.AbstractComponent.fireEvent(AbstractComponent.java:1146)
at com.vaadin.ui.Button.fireClick(Button.java:366)
at com.vaadin.ui.Button.changeVariables(Button.java:188)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.handleVariables(AbstractCommunicationManager.java:1087)
at com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleUidlRequest(AbstractCommunicationManager.java:587)
at com.vaadin.terminal.gwt.server.CommunicationManager.handleUidlRequest(CommunicationManager.java:265)
at com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:482)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: com/google/gwt/user/client/Timer
at com.example.vaadingrid.VaadingridApplication.buttonClick(VaadingridApplication.java:67)
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:487)
... 21 more
Caused by: java.lang.ClassNotFoundException: com.google.gwt.user.client.Timer
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
... 27 more
Can anyone help me to find what’s going on ?
Thanks.