Fix ConcurrentModificationException in BatchFetchPolicy

Fixes #1506 . This change will fix the ConcurrentModificationException of the attributeExpression list, when running the same (batch)query with different entity managers. Signed-off-by: Radek Felcman <radek.felcman@oracle.com>
eclipse-ee4j · Oct 4, 2022 · 7079fdc · 7079fdc
1 parent ae4203c
commit 7079fdc
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/...ipse.persistence.core/src/main/java/org/eclipse/persistence/queries/BatchFetchPolicy.java b/...ipse.persistence.core/src/main/java/org/eclipse/persistence/queries/BatchFetchPolicy.java
@@ -77,6 +77,9 @@ public BatchFetchPolicy clone() {
             dataResults.put(clone, list);
         }
         clone.setDataResults(dataResults);
+        if(this.attributeExpressions != null) {
+            clone.attributeExpressions = new ArrayList<>(this.attributeExpressions);
+        }
         return clone;
     }