EMPIREDB-357
bugfix
diff --git a/empire-db/src/main/java/org/apache/empire/commons/StringUtils.java b/empire-db/src/main/java/org/apache/empire/commons/StringUtils.java
index 4f1cb46..9b7a20a 100644
--- a/empire-db/src/main/java/org/apache/empire/commons/StringUtils.java
+++ b/empire-db/src/main/java/org/apache/empire/commons/StringUtils.java
@@ -253,8 +253,10 @@
         if (s1==s2)
             return true;
         // Empty
-        if (isEmpty(s1) && isEmpty(s2))
-            return true;
+        if (isEmpty(s1))
+            return isEmpty(s2);
+        else if (isEmpty(s2))
+            return false;
         // Compare 
         return s1.equals(s2);
     }