Jruby-1.7.10 - IO.read().size changes after the first access

Ruby JRuby
1

Hi,

I am using jruby-1.7.10. I am having an issue that I don’t understand.
The
simple following test does not pass on jruby but works well on MRI. Any
idea ?

describe “IO.read” do
it “return the same value twice” do
obj = IO.read(File.join(File.dirname(FILE), “fixtures”,
‘img.jpg’))
obj.size.should eq obj.size
end
end

The first time obj.size returns 314. But after that it returns 311.

Thanks

Aymeric BRISSE

2

FYI, the bug is not reproducible when using the BINARY mode.

So in conclusion :

obj = IO.read(File.join(File.dirname(FILE), “fixtures”, ‘img.jpg’),
encoding: ‘UTF-8’)
obj.size # returns 314
obj.size # returns 311

obj = IO.read(File.join(File.dirname(FILE), “fixtures”, ‘img.jpg’),
encoding: ‘BINARY’)
obj.size # returns 314
obj.size # returns 311

Aymeric BRISSE

R&D Manager

Phone : (+33) 6 76 05 66 69

http://perfect-memory.com

http://www.ibc.org/page.cfm/Action=Exhib/ExhibID=1364/loadSearch=849339_2982
IBC Innovation Finalist Award 2013SEMTECH San Francisco Top 10 Semantic
Startup 2013 *

On Tue, Jan 28, 2014 at 12:13 PM, Aymeric Brisse <