When we create a SFTP service and try to test it with routing address following error is returned.

Server error messages:
f0f45898-10ba-4269-af62-1ffd55825436

Ifs.Fnd.FndSystemException: Explorer: An Unhandled Exception has occurred ---> Ifs.Fnd.FndSystemException: Unexpected error while calling server method ConnectTester/TestRouteAddress ---> Ifs.Fnd.FndServerFaultException: Error during file sending
Caused by: com.jcraft.jsch.SftpException: Failure
at Ifs.Fnd.AccessProvider.FndConnection.ParseErrorHeader(FndBuffer buffer, FndManualDecisionCollection decisions)
at Ifs.Fnd.AccessProvider.FndConnection.UnMarshalResponseHeader(Stream responseStream, FndManualDecisionCollection decisions)
at Ifs.Fnd.AccessProvider.FndConnection.HandleHttpSuccessResult(HttpWebResponse result, FndManualDecisionCollection decisions, String operation, FndBodyType responseBodyType, Object responseBody)
at Ifs.Fnd.AccessProvider.FndConnection.InvokeInternal(Object requestBody, Object responseBody, String intface, String operation, FndRequestContext requestContext, FndManualDecisionCollection decisions, Boolean forcedSync, Boolean integrationGateway)
--- End of inner exception stack trace ---
at Ifs.Fnd.AccessProvider.FndConnection.InvokeInternal(Object requestBody, Object responseBody, String intface, String operation, FndRequestContext requestContext, FndManualDecisionCollection decisions, Boolean forcedSync, Boolean integrationGateway)
at Ifs.Fnd.AccessProvider.FndConnection.InvokeInternal(String intface, String operation, Object requestBody, Object responseBody, FndRequestContext requestContext, Boolean forcedSync, Boolean integrationGateway)
at Ifs.Fnd.AccessProvider.Activity.FndActivityContext.InvokeIntegration(String intface, String operation, Object request, Object response)
at Ifs.Fnd.AccessProvider.Activity.FndActivityCommand.ExecuteNonQuery(Object body)
at Ifs.Application.MessageRouting.ServerInterface.Ifs.Application.MessageRouting.IConnectTester.TestRouteAddress(RouteAddress address, ApplicationMessage& message)
at Ifs.Application.MessageRouting.TestRouteAddress.fndButtonSend_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at Ifs.Fnd.Windows.Forms.FndButton.OnClick(EventArgs e)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
--- End of inner exception stack trace ---