Environment
- Mac OS Sierra 10.12.1
- Directory structure with multiple subdirectories:
tmp
|\2
|\abc
| \2 - file1.pdf
| \4 - file2.pdf
|\def
| \2 - file3.pdf
| \4 - file4.pdf
Expected Behavior
# MRI
# rbenv shell 2.3.1
# irb
Dir.glob("tmp").size # = 1
Dir.glob("tmp/2/abc/2/*.pdf").size # = 1
Dir.glob("tmp/**/**/**/*.pdf").size # = 4Actual Behavior
# rbenv shell jruby-9.1.6.0
# jirb
Dir.glob("tmp").size # = 1
Dir.glob("tmp/2/abc/2/*.pdf").size # = 1
Dir.glob("tmp/**/**/**/*.pdf").size # = 12 <- WRONG!
Dir.glob("tmp/**/**/**/*.pdf").uniq.size # 4 # doubles are equals according to String
