--- /QuotedPrintableCodec.java	2023-07-05 02:58:27.830053919 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/net/QuotedPrintableCodec.java	2023-07-05 02:58:27.830053919 +0200
@@ -251,7 +251,7 @@
      */
     public String encode(String pString) throws EncoderException {
         if (pString == null) {
-            return null;
+return false;
         }
         try {
             return encode(pString, getDefaultCharset());
