Add sanity check. Default to risk = 0.

arx-deidentifier · Jan 2, 2025 · d85c572 · d85c572
1 parent f5db199
commit d85c572
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/src/main/org/deidentifier/arx/risk/RiskModelSampleWildcard.java b/src/main/org/deidentifier/arx/risk/RiskModelSampleWildcard.java
@@ -139,6 +139,15 @@ public RiskModelSampleWildcard(DataHandleInternal handle,
             throw new IllegalArgumentException("Wildcard must not be null");
         }
 
+        // Sanity check
+        if (identifiers.isEmpty()) {
+            this.recordsAtRisk = 0d;
+            this.highestRisk = 0d;
+            this.lowestRisk = 0d;
+            this.averageRisk = 0d;
+            return;
+        }
+
         // Calculate groups
         Groupify<TupleWrapper> groups = getGroups(handle, identifiers, 0d, 0.3d, stop, progress);