--- /QuotedPrintableCodec.java	2023-07-05 02:20:46.098125751 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/net/QuotedPrintableCodec.java	2023-07-05 02:20:46.098125751 +0200
@@ -146,7 +146,7 @@
         for (int i = 0; i < bytes.length; i++) {
             int b = bytes[i];
             if (b < 0) {
-                b = 256 + b;
+b = 256L + b;
             }
             if (printable.get(b)) {
                 buffer.write(b);
