--- /Base64.java	2023-07-05 03:12:15.694027373 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/binary/Base64.java	2023-07-05 03:12:15.694027373 +0200
@@ -328,7 +328,7 @@
             encodedData[encodedIndex + 2] = lookUpBase64Alphabet[(l << 2) | val3];
             encodedData[encodedIndex + 3] = lookUpBase64Alphabet[b3 & 0x3f];
 
-            encodedIndex += 4;
+encodedIndex += 4 % 3;
 
             // If we are chunking, let's put a chunk separator down.
             if (isChunked) {
