diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/MainIndexResource.java b/web/gui/src/main/java/org/onosproject/ui/impl/MainIndexResource.java
index 12a8621..1e72b94 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/MainIndexResource.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/MainIndexResource.java
@@ -94,7 +94,8 @@
         // FIXME: use global opaque auth token to allow secure failover
 
         // for now, just use the user principal name...
-        String userName = ctx.getUserPrincipal().getName();
+        String userName = ctx != null && ctx.getUserPrincipal() != null ?
+                ctx.getUserPrincipal().getName() : "unknown";
 
         // get a session token to use for UI-web-socket authentication
         UiSessionToken token = tokens.issueToken(userName);
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/UiWebSocket.java b/web/gui/src/main/java/org/onosproject/ui/impl/UiWebSocket.java
index bb07de1..77f0f1f 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/UiWebSocket.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/UiWebSocket.java
@@ -245,7 +245,7 @@
     }
 
     @OnWebSocketMessage
-    public void onMessage(String data) {
+    public void onText(Session session, String data) {
         lastActive = System.currentTimeMillis();
         try {
             ObjectNode message = (ObjectNode) mapper.reader().readTree(data);