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Rails5 jruby unable to start

Cannot start rails5 with jruby, getting the following error.

gavinyap@gavin-ubuntu  ~/Development/rails5app  rails s DEPRECATION WARNING: alias_method_chain is deprecated. Please, use Module#prepend instead. From module, you can access the original method using super. (called from require at bin/rails:4) Bundler::GemRequireError: There was an error while trying to load the gem 'activerecord-jdbcmysql-adapter'. Gem Load Error is: uninitialized constant ActiveRecord::ConnectionAdapters::Column::Format Backtrace for gem load error is: /home/gavinyap/.rvm/gems/jruby-9.1.2.0/gems/activerecord-jdbc-adapter-1.3.20/lib/arjdbc/jdbc/type_cast.rb:13:in `<module:TypeCast>' /home/gavinyap/.rvm/gems/jruby-9.1.2.0/gems/activerecord-jdbc-adapter-1.3.20/lib/arjdbc/jdbc/type_cast.rb:7:in `<module:Jdbc>' /home/gavinyap/.rvm/gems/jruby-9.1.2.0/gems/activerecord-jdbc-adapter-1.3.20/lib/arjdbc/jdbc/type_cast.rb:4:in `< module:ConnectionAdapters>' /home/gavinyap/.rvm/gems/jruby-9.1.2.0/gems/activerecord-jdbc-adapter-1.3.20/lib/arjdbc/jdbc/type_cast.rb:3:in `<top>' /home/gavinyap/.rvm/gems/jruby-9.1.2.0/gems/activerecord-jdbc-adapter-1.3.20/lib/arjdbc/jdbc/column.rb:1:in `singleton cla

Jruby and Rails Versions

  • jruby 9.1.2.0 (2.3.0) 2016-05-26 7357c8f
  • 64-bit OpenJDK server
  • VM 25.91-b14 on 1.8.0_91-8u91-b14-0ubuntu4 ~ 16.04.1-b14 + jit [linux-x86_64]
  • Rails 5.0.0
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2 answers

The ActiveRecord JDBC emulator has not been updated for Rails 5. Checking the project on GitHub shows some activity earlier this year, but there is no indication that a new relief will be released for Rails 5.

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add gem 'activerecord-jdbcmysql-adapter', '~> 5.0.pre1' to your gemfile

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