gem list don't show some gems as default #4019
Description
jruby 9.1.2.0 (2.3.0) 2016-05-26 7357c8f Java HotSpot(TM) 64-Bit Server VM 25.77-b03 on 1.8.0_77-b03 [darwin-x86_64]
$ gem list |grep default
jar-dependencies (default: 0.3.2)
minitest (5.9.0, 5.8.4, default: 5.4.1)
net-telnet (default: 0.1.1)
power_assert (default: 0.2.3)
rake (11.2.2, 10.5.0, default: 10.4.2, 10.1.1)
rdoc (4.2.2, default: 4.2.0)
test-unit (default: 3.1.1, 2.5.5)
Gems that are missing from this list:
- racc
- psych
- json
- jruby-openssl
$ gem uninstall json
ERROR: While executing gem ... (Gem::InstallError)
gem "json" cannot be uninstalled because it is a default gem
P.S. Why rake is default on JRuby and is not on MRI?