SYMPTOM:
Users get an error 'Server Error in '/Strategy' Application. java.lang.IllegalStateException: Timer already cancelled' when trying to access Strategy Web 9.x

java.lang.IllegalStateException: Timer already cancelled. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: Strategy.Web.BridgeInf.JavaException: java.lang.IllegalStateException: Timer already cancelled.
Strategy.Web.BridgeInf.AbstractWebBridge.HandleBridgedMethodException(BridgedMethodException bme, SystemServices sysSvcs) +173 Strategy.Web.BridgeInf.AbstractWebBridge.CallVoidMethod(Int32 classNdx, Int32 methodNdx, IList lstArgs, SystemServices sysSvcs) +98 Strategy.Web.Controller.AppController.InitializeApp(IContainerServices cs) +127 Strategy.MSTRControls.MSTRWebApplication.InitializeController(String sServletName, String sWebXMLFile, String sAppContextName, String sControllerClassName, String sControllerName, String sBasePath, String sApplicationPath, String sRequestServerName) +538 Strategy.MSTRControls.MSTRWebApplication.InitializeAllControllers() +395 Strategy.GlobalApp.Application_BeginRequest(Object sender, EventArgs e) +67 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64
