before_session hook failed: Pry::CommandError: Cannot locate this method: singleton_method_added.
Trying to debug https://github.com/logstash-plugins/logstash-filter-aggregate/issues/119
[1] pry(#<Class>)> step
before_session hook failed: Pry::CommandError: Cannot locate this method: singleton_method_added.
/src/logstash/vendor/bundle/jruby/2.5.0/gems/pry-0.14.1-java/lib/pry/method.rb:536:in `pry_doc_info'
(see pry_instance.hooks.errors to debug)