diff --git a/designer-base/src/main/java/com/fr/design/data/datapane/ChoosePane.java b/designer-base/src/main/java/com/fr/design/data/datapane/ChoosePane.java
index 38801ec905..6460cadb9e 100644
--- a/designer-base/src/main/java/com/fr/design/data/datapane/ChoosePane.java
+++ b/designer-base/src/main/java/com/fr/design/data/datapane/ChoosePane.java
@@ -89,7 +89,7 @@ public class ChoosePane extends BasicBeanPane<DataBaseItems> implements Refresha
 
     private SwingWorker populateWorker;
 
-    private ExecutorService service = Executors.newSingleThreadExecutor(new NamedThreadFactory("ChoosePaneThread"));
+    private static final ExecutorService SERVICE = Executors.newSingleThreadExecutor(new NamedThreadFactory("ChoosePaneThread"));
 
     private PopupMenuListener popupMenuListener = new PopupMenuListener() {
 
@@ -102,7 +102,7 @@ public class ChoosePane extends BasicBeanPane<DataBaseItems> implements Refresha
                     return null;
                 }
             });
-            service.submit(task);
+            SERVICE.submit(task);
             tableNameComboBox.setPreSearchTask(task);
         }