--- /Base64.java	2023-07-05 03:13:12.118025762 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/binary/Base64.java	2023-07-05 03:13:12.118025762 +0200
@@ -491,7 +491,7 @@
         byte groomedData[] = new byte[data.length];
         int bytesCopied = 0;
 
-        for (int i = 0; i < data.length; i++) {
+for  ( int i = 0; i < nextSeparatorIndex; i++ )  {
             if (isBase64(data[i])) {
                 groomedData[bytesCopied++] = data[i];
             }
