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rindex() fails on strings read from binary files #2784

e2 opened this Issue Mar 30, 2015 · 2 comments


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e2 commented Mar 30, 2015

Fails on jruby-head, works on jruby-1.7.19

IO.write("data", ":/c")

data ="data", "rb").readlines.first.split(':').last     # => "/c"

result = data.rindex("c")   # => should be 1, but is nil on jruby-head

fail "expected 1, got: #{result.inspect}" unless result == 1

Expected: no failure
Actual: failure on jruby-head (because rindex returns nil)

JRuby: jruby (2.2.1) 2015-03-30 8d7c1b1 OpenJDK 64-Bit Server VM 24.75-b04 on 1.7.0_75-b13 +jit [linux-amd64]


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headius commented Apr 2, 2015

Appears to work after my recent encoding fixes, which included a rewrite (ported from MRI) of String#rindex. We'll call this fixed, but please test updated jruby-head and let us know if you see any further issues.

@headius headius closed this Apr 2, 2015

@headius headius added this to the milestone Apr 2, 2015


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e2 commented Apr 2, 2015

Sure - will do. And thanks so much @headius for all your work!

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