convert_database_option_for_jruby

# File railties/lib/rails/generators/app_base.rb, line 176
      def convert_database_option_for_jruby
        if defined?(JRUBY_VERSION)
          case options[:database]
          when "oracle"     then options[:database].replace "jdbc"
          when "postgresql" then options[:database].replace "jdbcpostgresql"
          when "mysql"      then options[:database].replace "jdbcmysql"
          when "sqlite3"    then options[:database].replace "jdbcsqlite3"
          end
        end
      end