Dir.home is no longer compatible with CRuby after JRuby 9.3 #7735
Description
Environment Information
JRuby version:
jruby 9.4.2.0 (3.1.0) 2023-03-08 90d2913 OpenJDK 64-Bit Server VM 25.362-b09 on 1.8.0_362-b09 +jit [x86_64-linux]
Operating system and platform:
Linux 96d20f512b68 5.15.0-67-generic #74-Ubuntu SMP Wed Feb 22 14:14:39 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
I use docker images jruby:9.4 and jruby:9.3
Expected Behavior
Dir.home with nil returns home directory of current user.
I expect JRuby to be the same behavior.
$ docker run -it --rm ruby:3.2
irb(main):001:0> Dir.home nil
=> "/root"
irb(main):002:0>https://ruby-doc.org/3.2.1/Dir.html#method-c-home
Actual Behavior
After JRuby 9.3, Dir.home returns an error if user is nil.
$ docker run -it --rm jruby:9.4
irb(main):001:0> Dir.home nil
org/jruby/RubyDir.java:635:in `home': no implicit conversion of nil into String (TypeError)
from (irb):1:in `evaluate'
from org/jruby/RubyKernel.java:1143:in `eval'
from org/jruby/RubyKernel.java:1586:in `loop'
from org/jruby/RubyKernel.java:1292:in `catch'
from org/jruby/RubyKernel.java:1292:in `catch'
from /opt/jruby/lib/ruby/gems/shared/gems/irb-1.4.2/exe/irb:11:in `<main>'
from org/jruby/RubyKernel.java:1091:in `load'
from /opt/jruby/bin/irb:23:in `<main>'
irb(main):002:0>