Environment jruby 9.2.0.0-SNAPSHOT (2.4.1) 2017-09-07 b6a4df9 OpenJDK 64-Bit Server VM 24.121-b00 on 1.7.0_121-b00 +jit [linux-x86_64] Linux rails-dev-box 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10...