Github user garydgregory commented on the pull request:
https://github.com/apache/commons-lang/pull/127#issuecomment-209628290
It is what it is for whatever reason the original author intended, that
person must have thought it important for subclasses to NOT be able to hide the
methods. The class itself should probably be final like any utility class, but
we cannot change that in a minor release since it would break BC.
To cut to the chase: I am OK with apply the patch if it does not include
the 'final' changes.
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