Thanks for the quick reply Isaac. It actually solved the problem. I did not know about Timer were not allowed on app engine. I really intended to use it for my project. I will try to figure out another way to make it work without the timer.
Thanks again =) On Jul 30, 7:25 pm, Isaac Truett <[email protected]> wrote: > Timerisn't allowed on app engine. Did you mean to have your project > configured to use app engine? If not, you can go into project > properties and uncheck app engine. That'll make this go away. > > > > On Thu, Jul 30, 2009 at 5:40 PM, Melodaf<[email protected]> wrote: > > > Hey folks > > > I am having a weird problem when I try to use aTimeron the server- > > side code of my gwt app. > > > After I import the package: > > > import java.util.Timer; > > > and declare my variable: > > > publicTimerrefreshTimer; > > > IF I do this: > > > refreshTimer = newTimer(); > > > I get these errors: > > > 30-Jul-2009 21:36:57 > > com.google.appengine.tools.development.ApiProxyLocalImpl log > > SEVERE: [1248989817022000] javax.servlet.ServletContext log: Exception > > while dispatching incoming RPC call > > com.google.gwt.user.server.rpc.UnexpectedException: Service method > > 'public abstract java.util.ArrayList > > com.google.gwt.spacefighter.client.SpaceFighterService.startup > > (com.google.gwt.spacefighter.client.Phantom)' threw an unexpected > > exception: java.security.AccessControlException: access denied > > (java.lang.RuntimePermission modifyThreadGroup) > > at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure > > (RPC.java:360) > > at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse > > (RPC.java:546) > > at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall > > (RemoteServiceServlet.java:166) > > at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost > > (RemoteServiceServlet.java:86) > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > > 487) > > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > > (ServletHandler.java:1093) > > at > > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter > > (TransactionCleanupFilter.java:43) > > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > > (ServletHandler.java:1084) > > at com.google.appengine.tools.development.StaticFileFilter.doFilter > > (StaticFileFilter.java:124) > > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > > (ServletHandler.java:1084) > > at org.mortbay.jetty.servlet.ServletHandler.handle > > (ServletHandler.java:360) > > at org.mortbay.jetty.security.SecurityHandler.handle > > (SecurityHandler.java:216) > > at org.mortbay.jetty.servlet.SessionHandler.handle > > (SessionHandler.java:181) > > at org.mortbay.jetty.handler.ContextHandler.handle > > (ContextHandler.java:712) > > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > > 405) > > at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle > > (DevAppEngineWebAppContext.java:54) > > at org.mortbay.jetty.handler.HandlerWrapper.handle > > (HandlerWrapper.java:139) > > at com.google.appengine.tools.development.JettyContainerService > > $ApiProxyHandler.handle(JettyContainerService.java:313) > > at org.mortbay.jetty.handler.HandlerWrapper.handle > > (HandlerWrapper.java:139) > > at org.mortbay.jetty.Server.handle(Server.java:313) > > at > > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > > 506) > > at org.mortbay.jetty.HttpConnection$RequestHandler.content > > (HttpConnection.java:844) > > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644) > > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205) > > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) > > at org.mortbay.io.nio.SelectChannelEndPoint.run > > (SelectChannelEndPoint.java:396) > > at org.mortbay.thread.BoundedThreadPool$PoolThread.run > > (BoundedThreadPool.java:442) > > Caused by: java.security.AccessControlException: access denied > > (java.lang.RuntimePermission modifyThreadGroup) > > at java.security.AccessControlContext.checkPermission(Unknown Source) > > at java.security.AccessController.checkPermission(Unknown Source) > > at java.lang.SecurityManager.checkPermission(Unknown Source) > > at com.google.appengine.tools.development.DevAppServerFactory > > $CustomSecurityManager.checkPermission(DevAppServerFactory.java:128) > > at com.google.appengine.tools.development.DevAppServerFactory > > $CustomSecurityManager.checkAccess(DevAppServerFactory.java:155) > > at java.lang.ThreadGroup.checkAccess(Unknown Source) > > at java.lang.Thread.init(Unknown Source) > > at java.lang.Thread.<init>(Unknown Source) > > at java.util.TimerThread.<init>(Unknown Source) > > at java.util.Timer.<init>(Unknown Source) > > at java.util.Timer.<init>(Unknown Source) > > at com.google.gwt.spacefighter.server.SpaceFighterServiceImpl.startup > > (SpaceFighterServiceImpl.java:46) > > 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.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse > > (RPC.java:527) > > ... 27 more > > > If I comment the line that creates thetimerall of those go away. > > > It seems to me like theTimercreation somehow violates security and > > does not allow the server to communicate with the client through RPC. > > Someone can help me to figure out the problem and solve it ? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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