--- android/TrainInfoService/src/dk/thoerup/traininfoservice/banedk/TimetableServlet.java	2009/10/20 20:44:12	457
+++ android/TrainInfoService/src/dk/thoerup/traininfoservice/banedk/TimetableServlet.java	2009/10/20 20:59:38	458
@@ -25,6 +25,11 @@
 	
 	@Override
 	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		if (request.getParameter("train") == null) {
+			response.sendError(400, "not enough parameters");
+			return;
+		}
+		
 		String train = request.getParameter("train").trim();
 		
 		String sections[] = train.split(" ");