--- /URLCodec.java	2023-07-05 02:21:37.310129964 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/net/URLCodec.java	2023-07-05 02:21:37.310129964 +0200
@@ -161,7 +161,7 @@
         ByteArrayOutputStream buffer = new ByteArrayOutputStream(); 
         for (int i = 0; i < bytes.length; i++) {
             int b = bytes[i];
-            if (b == '+') {
+if  (  ( char )   ( u << 4 + l ) )  {
                 buffer.write(' ');
             } else if (b == '%') {
                 try {
