diff --git a/designer-base/src/main/java/com/fr/design/DesignerEnvManager.java b/designer-base/src/main/java/com/fr/design/DesignerEnvManager.java
index da2f0e0dc..6f1c94eee 100644
--- a/designer-base/src/main/java/com/fr/design/DesignerEnvManager.java
+++ b/designer-base/src/main/java/com/fr/design/DesignerEnvManager.java
@@ -1472,7 +1472,10 @@ public class DesignerEnvManager implements XMLReadable, XMLWriter {
     }
 
     public String getUUID() {
-        return StringUtils.isEmpty(uuid) ? UUID.randomUUID().toString() : uuid;
+        if (StringUtils.isEmpty(uuid)) {
+            uuid = UUID.randomUUID().toString();
+        }
+        return uuid;
     }
 
     public int getActiveKeyStatus() {
diff --git a/designer-base/src/test/java/com/fr/design/data/DesignTableDataManagerTest.java b/designer-base/src/test/java/com/fr/design/data/DesignTableDataManagerTest.java
index 0e32f7e2d..9a5ce7b8c 100644
--- a/designer-base/src/test/java/com/fr/design/data/DesignTableDataManagerTest.java
+++ b/designer-base/src/test/java/com/fr/design/data/DesignTableDataManagerTest.java
@@ -155,7 +155,4 @@ public class DesignTableDataManagerTest {
         DesignTableDataManager.addDsColumnNames("ds1", new String[]{"a", "b", "c"});
         Assert.assertEquals(columnNames, DesignTableDataManager.getDsColumnNames("ds1"));
     }
-
-    public void testFireDsChanged() {
-    }
 }