StringIO.set_encoding may change shared ByteList encoding #1699

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merged 1 commit into from May 21, 2014

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@orikremer
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When creating a StringIO instance with no arguments, ptr.string references the shared EMPTY_BYTELISTS instance for that encoding.

It is possible to then call set_encoding to change the encoding on the shared instance.

This fix is to duplicate the value before changing the encoding.

@enebo enebo merged commit 9228157 into jruby:master May 21, 2014

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@enebo enebo added this to the JRuby 1.7.13 milestone May 21, 2014
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