Index: trunk/src/org/openstreetmap/josm/io/remotecontrol/RequestProcessor.java
===================================================================
--- trunk/src/org/openstreetmap/josm/io/remotecontrol/RequestProcessor.java	(revision 16766)
+++ trunk/src/org/openstreetmap/josm/io/remotecontrol/RequestProcessor.java	(revision 16767)
@@ -408,5 +408,8 @@
         JsonArrayBuilder json = Json.createArrayBuilder();
         for (String s : Utils.firstNonNull(handlers, RequestProcessor.handlers.keySet())) {
-            json.add(getHandlerInfoAsJSON(s));
+            JsonObject infoAsJson = getHandlerInfoAsJSON(s);
+            if (infoAsJson != null) {
+                json.add(infoAsJson);
+            }
         }
         return json.build();
@@ -420,4 +423,10 @@
     public static JsonObject getHandlerInfoAsJSON(String cmd) {
         RequestHandler handler;
+        if (cmd == null) {
+            return null;
+        }
+        if (!cmd.startsWith("/")) {
+            cmd = "/" + cmd;
+        }
         try {
             Class<?> c = handlers.get(cmd);