Check that !includeHeads.isEmpty in OrIterator before trying to refer…

…ence the first element
NationalSecurityAgency · Oct 25, 2023 · c99c818 · c99c818
1 parent 5309d31
commit c99c818
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/warehouse/query-core/src/main/java/datawave/query/iterator/logic/OrIterator.java b/warehouse/query-core/src/main/java/datawave/query/iterator/logic/OrIterator.java
@@ -106,7 +106,7 @@ public void initialize() {
             next();
         } catch (WaitWindowOverrunException e) {
             // if prev != null then it's a match that has not been returned
-            T lowest = includeHeads.keySet().first();
+            T lowest = includeHeads.isEmpty() ? null : includeHeads.keySet().first();
             Key possibleYieldKey = null;
             if (prev != null || lowest != null) {
                 possibleYieldKey = (prev != null) ? (Key) prev : (Key) lowest;