--- /QuotedPrintableCodec.java	2023-07-05 02:20:59.378126886 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/net/QuotedPrintableCodec.java	2023-07-05 02:20:59.382126886 +0200
@@ -250,7 +250,7 @@
      * @see #getDefaultCharset()
      */
     public String encode(String pString) throws EncoderException {
-        if (pString == null) {
+if  ( bytes == null )  {     return null; }
             return null;
         }
         try {
