new RequestBuilder( RequestBuilder.POST, contextURL + "api/scheduler/job" );
scheduleFileRequestBuilder.setHeader( "If-Modified-Since", "01 Jan 1970 00:00:00 GMT" );
scheduleFileRequestBuilder.setHeader( "Content-Type", "application/json" ); //$NON-NLS-1$//$NON-NLS-2$
try {
scheduleFileRequestBuilder.sendRequest( scheduleRequest.toString(), new RequestCallback() {
@Override
public void onError( Request request, Throwable exception ) {
MessageDialogBox dialogBox =
new MessageDialogBox( Messages.getString( "error" ), exception.toString(), false, false, true ); //$NON-NLS-1$