Github user netomi commented on the pull request:
https://github.com/apache/commons-lang/pull/98#issuecomment-113740935
It works (if you can call it like that) by casting it to something this it
isn't, which results in a ClassCastException. As a ClassCastException is a
RuntimeException everything appears to be fine, but it is completely wrong.
The referenced util in guava makes sense, and if you like to include it in
commons, just copy&paste it, but do not try to come up with a flawed version
yourself.
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