new

# File railties/lib/rails/backtrace_cleaner.rb, line 16
    def initialize
      super
      add_filter   { |line| line.sub("#{RAILS_ROOT}/", '') }
      add_filter   { |line| line.sub(ERB_METHOD_SIG, '') }
      add_filter   { |line| line.sub('./', '/') } # for tests

      add_gem_filters

      add_silencer { |line| ALL_NOISE.any? { |dir| line.include?(dir) } }
      add_silencer { |line| RAILS_GEMS.any? { |gem| line =~ /^#{gem} / } }
      add_silencer { |line| line =~ %r(vendor/plugins/[^\/]+/lib) }
    end