Loading some constants twice with Rails 4.2.0.rc1 and postgres

[nateberkopec]

On JRuby 1.7.16.1, running Rails 4.2.0.rc1, I get the following when starting Rails:

(...)/gems/activerecord-4.2.0.rc1/lib/active_record/connection_adapters/postgresql/array_parser.rb:6 warning: already initialized constant DOUBLE_QUOTE
(...)/gems/activerecord-4.2.0.rc1/lib/active_record/connection_adapters/postgresql/array_parser.rb:7 warning: already initialized constant BACKSLASH
(...)/gems/activerecord-4.2.0.rc1/lib/active_record/connection_adapters/postgresql/array_parser.rb:8 warning: already initialized constant COMMA
(...)/gems/activerecord-4.2.0.rc1/lib/active_record/connection_adapters/postgresql/array_parser.rb:9 warning: already initialized constant BRACKET_OPEN
(...)/gems/activerecord-4.2.0.rc1/lib/active_record/connection_adapters/postgresql/array_parser.rb:10 warning: already initialized constant BRACKET_CLOSE

[chasseurmic]

+1

[kares]

this issue has nothing to-do with JRuby itself but is caused by the activerecord-jdbc-adapter gem ...
following up Rails is a (constant) hustle as the ActiveRecord internals change, the 4.2 release is a particularly painful release for AR-JDBC. please help us get 4.2 support in at : jruby/activerecord-jdbc-adapter#599