Protect the UI from getting stuck when no tags are associated with a …

…query.
OpenTSDB · Mar 29, 2015 · 402ba24 · 402ba24
1 parent 684ff52
commit 402ba24
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/src/tsd/client/QueryUi.java b/src/tsd/client/QueryUi.java
@@ -956,9 +956,11 @@ public void got(final JSONValue json) {
             }
             final MetricForm metric = (MetricForm) widget;
             final JSONArray tags = etags.get(i).isArray();
-            final int ntags = tags.size();
-            for (int j = 0; j < ntags; j++) {
-              metric.autoSuggestTag(tags.get(j).isString().stringValue());
+            // Skip if no tags were associated with the query.
+            if (null != tags) {
+              for (int j = 0; j < tags.size(); j++) {
+                metric.autoSuggestTag(tags.get(j).isString().stringValue());
+              }
             }
           }
         }