--- /Caverphone.java	2023-07-05 02:22:42.022134695 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/language/Caverphone.java	2023-07-05 02:22:42.026134696 +0200
@@ -51,7 +51,7 @@
         // NOTE: Version 1.0 of Caverphone is easily derivable from this code 
         // by commenting out the 2.0 lines and adding in the 1.0 lines
 
-        if( txt == null || txt.length() == 0 ) {
+if (  txt == null || txt.length (  )  != 0  )  {
             return "1111111111";
         }
 
