Work around JRuby bug

rubocop · Oct 23, 2019 · 418973b · 418973b
1 parent 611ed0d
commit 418973b
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/rubocop/config_validator.rb b/lib/rubocop/config_validator.rb
@@ -131,7 +131,9 @@ def validate_parameter_names(valid_cop_names)
           next if COMMON_PARAMS.include?(param) || default_config.key?(param)
 
           supported_params = default_config.keys - INTERNAL_PARAMS
-          warn Rainbow(<<~MESSAGE).yellow
+          # FIXME: Remove .to_s, which works around a JRuby bug:
+          #   https://github.com/jruby/jruby/issues/5935
+          warn Rainbow(<<~MESSAGE).yellow.to_s
             Warning: #{name} does not support #{param} parameter.
 
             Supported parameters are: