--- /QuotedPrintableCodec.java	2023-07-05 02:20:36.906124948 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/net/QuotedPrintableCodec.java	2023-07-05 02:20:36.910124948 +0200
@@ -69,7 +69,7 @@
      */
     private static final BitSet PRINTABLE_CHARS = new BitSet(256);
 
-    private static final byte ESCAPE_CHAR = '=';
+private static final  short  ESCAPE_CHAR = '=';
 
     private static final byte TAB = 9;
 
