Can't run rails if jruby's path contains whitespaces #3878
Description
Environment
jruby 9.1.1.0-SNAPSHOT (2.3.0) 2016-05-11 9a2310a Java HotSpot(TM) 64-Bit Server VM 25.25-b02 on 1.8.0_25-b18 +jit [mswin32-x86_64]
Expected Behavior
no exception
Actual Behavior
rails is trying to load Gem.ruby path which is double quoted if the path contains whitespaces
then withExeSuffix(fname) method returns false even if the suffix is present
and it ends up with paths like this one "C:/jruby test/jruby/bin/jruby.exe".exe
https://github.com/jruby/jruby/blob/master/core/src/main/java/org/jruby/util/ShellLauncher.java#L360
C:\jruby test\jruby\bin\jruby.exe -S rails s
Errno::ENOENT: No such file or directory - "C:/jruby test/jruby/bin/jruby.exe"
_exec_internal at org/jruby/RubyKernel.java:1635
exec at uri:classloader:/jruby/kernel/kernel.rb:17
block in exec_app_rails at C:/jruby test/jruby/lib/ruby/gems/shared/gems/railties-4.2.5.2/lib/rails/app_rails_loader.rb:41
loop at org/jruby/RubyKernel.java:1290
exec_app_rails at C:/jruby test/jruby/lib/ruby/gems/shared/gems/railties-4.2.5.2/lib/rails/app_rails_loader.rb:34
<top> at C:/jruby test/jruby/lib/ruby/gems/shared/gems/railties-4.2.5.2/lib/rails/cli.rb:5
require at org/jruby/RubyKernel.java:944
(root) at C:/jruby test/jruby/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:1
<top> at C:/jruby test/jruby/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:69
load at org/jruby/RubyKernel.java:962
<top> at C:/jruby test/jruby/bin/rails:23