Issue Type: Bug Bug
Assignee: Thomas E Enebo
Created: 28/Dec/12 4:21 PM
Description:

This works ok with MRI, but with jruby 1.7.0 (1.9.3p203) 2012-10-22 ff1ebbe on Java HotSpot(TM) Client VM 1.6.0_35-b10 [Windows 7-x86]
, I get

>> FileUtils.cp 'big.7z', 'big2.7z'
IOError: Map failed
from org/jruby/RubyIO.java:4200:in `copy_stream'
from c:/installs/jruby-1.7.0/lib/ruby/1.9/fileutils.rb:1381:in `copy_file'
from org/jruby/RubyIO.java:1180:in `open'
from c:/installs/jruby-1.7.0/lib/ruby/1.9/fileutils.rb:1380:in `copy_file'
from org/jruby/RubyIO.java:1180:in `open'
from c:/installs/jruby-1.7.0/lib/ruby/1.9/fileutils.rb:1379:in `copy_file'
from c:/installs/jruby-1.7.0/lib/ruby/1.9/fileutils.rb:477:in `copy_file'
from c:/installs/jruby-1.7.0/lib/ruby/1.9/fileutils.rb:396:in `cp'
from c:/installs/jruby-1.7.0/lib/ruby/1.9/fileutils.rb:1524:in `fu_each_src_dest'
from c:/installs/jruby-1.7.0/lib/ruby/1.9/fileutils.rb:1540:in `fu_each_src_dest0'
from c:/installs/jruby-1.7.0/lib/ruby/1.9/fileutils.rb:1522:in `fu_each_src_dest'
from c:/installs/jruby-1.7.0/lib/ruby/1.9/fileutils.rb:395:in `cp'
from (irb):6:in `evaluate'
from org/jruby/RubyKernel.java:1065:in `eval'
from org/jruby/RubyKernel.java:1390:in `loop'
from org/jruby/RubyKernel.java:1173:in `catch'
from org/jruby/RubyKernel.java:1173:in `catch'
from c:/installs/jruby-1.7.0/bin/jirb:13:in `(root)'

and with
jruby 1.7.0 (1.9.3p203) 2012-10-22 ff1ebbe on Java HotSpot(TM) 64-Bit Server VM 1.7.0_10-b18 [Windows 7-amd64]

I don't get an exception message, but I do get this:
$ ls -l
rw-rr- 1 packrd Administrators 2615825975 Dec 27 13:57 big.7z
rw-rr- 1 packrd Administrators 2147483647 Dec 28 15:18 big2.7z

(it didn't copy the whole file).

Thanks, and sorry if it's a dupe.

Environment: jruby 1.7.0 (1.9.3p203) 2012-10-22 ff1ebbe on Java HotSpot(TM) Client VM 1.6.0_35-b10 [Windows 7-x86]
Project: JRuby
Priority: Major Major
Reporter: Roger Pack
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