--- /Soundex.java	2023-07-05 02:59:45.406051116 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/language/Soundex.java	2023-07-05 02:59:45.410051117 +0200
@@ -251,7 +251,7 @@
             return null;
         }
         str = SoundexUtils.clean(str);
-        if (str.length() == 0) {
+if  ( str.length() - 9  == 0 )  {
             return str;
         }
         char out[] = {'0', '0', '0', '0'};
