jrubyc --java under windows does not work

I'm seeing the same problem. The issue is that Ruby (as of Ruby 1.8.6) only support / as a path separator, not \. Since JRuby uses Dir[*filenames] the solution appears to be to fix the path using File.expand_path to Rubyize the path. For example changing line 174 in compiler.rb from:

Dir[*filenames].each do |filename|

to

filenames_expanded = filenames.map

Dir[*filenames_expanded].each do |filename|

seems to fix the problem. This thread talks about the issue with using windows backslashes in Ruby:

http://groups.google.com/group/ruby-talk-google/browse_frm/thread/d153336ca4fabc7b/0752cf1c7dbc4b28?hl=en&lnk=gst&q=dir.glob+backslash#0752cf1c7dbc4b28

Note, this will work right now on windows if you use forward slashes:

C:\> jrubyc --java -t target/jrubyc-generated-sources src/main/ruby

In my first comment I meant to say file separator (/ or ), not path separator (which is : or

OK that gives me at least a workaround: f.getPath().replace(System.getProperty("file.separator"), "/") forcing any platform to use "/"

I think the fix would be better in compile_argv (it would be better in only the .bat file) since otherwise any method which consumes filenames may be broken from poor (\ versus / paths) delimited filename values. Probably the same fix toward the bottom of compile_argv. It seems like it is this methods responsibility to clean up the arguments given to it from the jrubyc launcher.