Github user stokito commented on the issue:
https://github.com/apache/commons-lang/pull/332
Hi @greenman18523 thank for your contribution - from my experience this is
"must have" functionality for Commons Lang library because in almost all bit
projects what I saw was their home grown masking function.
But what I would like to propose is to simplify the api and use one
function `mask()` instead of two `maskStart()` and `maskEnd()`. This will
simplify code of the functions especially both of them are quite similar. I
created a pull request with my alternative implementation #335
Also I created a JIRA ticket
https://issues.apache.org/jira/browse/LANG-1400
Please give your feedback,
Thank you
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