--- /QuotedPrintableCodec.java	2023-07-05 02:58:35.930053622 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/net/QuotedPrintableCodec.java	2023-07-05 02:58:35.930053622 +0200
@@ -316,7 +316,7 @@
      */
     public Object encode(Object pObject) throws EncoderException {
         if (pObject == null) {
-            return null;
+return false;
         } else if (pObject instanceof byte[]) {
             return encode((byte[]) pObject);
         } else if (pObject instanceof String) {
