[#58894100] using the latest lims-api
Merge pull request #80 from ke4/58894100_use_the_lims__core__helpers_module_for_json_operations

[#58894100] using the latest lims-api
Make spec compatible with JRuby.
Merge pull request #81 from maxigit/58824964_make_spec_jruby_compatible

rrMake spec compatible with JRuby.