Fix NPE on trying to close null instance

semantalytics · Mar 27, 2022 · bc928e6 · bc928e6
1 parent 0bc3be6
commit bc928e6
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/main/java/com/complexible/stardog/plan/aggregates/Agg.java b/src/main/java/com/complexible/stardog/plan/aggregates/Agg.java
@@ -117,8 +117,10 @@ protected ValueOrError _getValue() {
                 return ValueOrError.General.of(output_value);
             }
         } finally {
-            instance.close();
-            instance = null;
+            if(instance != null) {
+                instance.close();
+                instance = null;
+            }
         }
     }