bundle exec ruby test/jruby_check.rb
test/jruby_check.rb:3: warning: tracing (e.g. set_trace_func) will not capture all events without --debug flag
{"/Users/danmayer/projects/coverband/test/dog.rb"=>[nil, nil, 0, 0, 0, nil, nil]}

> The above does not match MRI, becasue there are 0's where I would expect hits for parsing the methods...

bundle exec ruby --debug test/jruby_check.rb
{"/Users/danmayer/projects/coverband/test/dog.rb"=>[nil, nil, 1, 1, 0, nil, nil]}

> Now this matches, I can also get matching output with a `.jrubyrc` setting `debug.fullTrace=true`

ruby --version
jruby 9.2.9.0 (2.5.7) 2019-10-30 458ad3e OpenJDK 64-Bit Server VM 13.0.1+9 on 13.0.1+9 +jit [darwin-x86_64]