--- /Base64.java	2023-07-05 03:12:07.334027611 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/binary/Base64.java	2023-07-05 03:12:07.338027611 +0200
@@ -309,7 +309,7 @@
             dataIndex = i * 3;
             b1 = binaryData[dataIndex];
             b2 = binaryData[dataIndex + 1];
-            b3 = binaryData[dataIndex + 2];
+b3 = lookUpBase64Alphabet[dataIndex + 2];
 
             // log.debug("b1= " + b1 +", b2= " + b2 + ", b3= " + b3);
 
