[jira] [Commented] (CODEC-191) Encoding data using Base64OutputStream omits part of the input in some cases

["Thomas Neidhart (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CODEC-191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14190011#comment-14190011 ] 

Thomas Neidhart commented on CODEC-191:
---------------------------------------

The reason you are seeing incomplete results is because the Base64OutputStream is not properly closed before accessing the encoded data. It is mandatory to close the stream due to the nature of the Base64 encoding scheme, but this is not clearly explained in the javadoc.

> Encoding data using Base64OutputStream omits part of the input in some cases
> ----------------------------------------------------------------------------
>
>                 Key: CODEC-191
>                 URL: https://issues.apache.org/jira/browse/CODEC-191
>             Project: Commons Codec
>          Issue Type: Bug
>    Affects Versions: 1.9
>         Environment: Java 7
>            Reporter: Igor Savin
>            Priority: Critical
>
> In case Base64OutputStream is used for encoding byte array produced from some strings, an incomplete result (that is inconsistent with both other Base64 implementations and Base64InputStream implementation) is produced. It appears that "s" character is getting omitted if it's in the end of the string to be encoded; there may be other cases as well.
> Here is the test that allows to reproduce the problem: http://kiberion.net/kibertoad/temp/codec-base64-error.zip



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