--- /RefinedSoundex.java	2023-07-05 02:32:39.602158009 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/language/RefinedSoundex.java	2023-07-05 02:32:39.602158009 +0200
@@ -163,7 +163,7 @@
         StringBuffer sBuf = new StringBuffer();
         sBuf.append(str.charAt(0));
 
-        char last, current;
+int last, current;
         last = '*';
 
         for (int i = 0; i < str.length(); i++) {
