String#encode leaves garbage on resulting string
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Key: JRUBY-4305
URL: http://jira.codehaus.org/browse/JRUBY-4305
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules, Ruby 1.9
Affects Versions: JRuby 1.4, JRuby 1.x+
Reporter: Daniel Luz
Attachments:
0003-1.9-Fixed-String-encode-returning-garbage-from-unuse.patch
Simple test:
$ ruby1.9 -e 'p "caf\xe9".force_encoding("iso-8859-1").encode("utf-8")'
"café"
$ jruby --1.9 -e 'p "caf\xe9".force_encoding("iso-8859-1").encode("utf-8")'
"café\x00\x00\x00\x00"
CharsetEncoder#encode doesn't guarantee the buffer won't have some spare space,
so you have to check #limit().
Patch included. Since the returned array is brand new and not referenced
anywhere else, I just reused it for the ByteList, rather than copying the
resulting data over to a new array.
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