Explicit call to super is redundant
diff --git a/src/main/java/org/apache/commons/validator/routines/checkdigit/ISINCheckDigit.java b/src/main/java/org/apache/commons/validator/routines/checkdigit/ISINCheckDigit.java
index 25fa5ba..77edac3 100644
--- a/src/main/java/org/apache/commons/validator/routines/checkdigit/ISINCheckDigit.java
+++ b/src/main/java/org/apache/commons/validator/routines/checkdigit/ISINCheckDigit.java
@@ -54,7 +54,6 @@
      * Constructs an ISIN Identifier Check Digit routine.
      */
     public ISINCheckDigit() {
-        super();
     }
 
     /**