Added capture of errors during server-side websocket handling.

Change-Id: I71a96aba30a7a232dc5d5f305c5da5a81d7b09d1
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 44acba2..608031c 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
@@ -259,7 +259,7 @@
                 }
             }
 
-        } catch (Exception e) {
+        } catch (Error | Exception e) {
             log.warn("Unable to parse GUI message {} due to {}", data, e);
             log.debug("Boom!!!", e);
         }