Oj gem with version 3.3.7 or more

[Jesterovskiy]

When I updated Oj gem I get issue:
JSON::ParserError: Empty input at line 1, column 1 [parse.c:926]
This is because in new Oj version, for line https://github.com/ruby-json-schema/json-schema/blob/c12f6000795cc0fdf8d17d97d5bf9c1b383037e4/lib/json-schema/validator.rb#L527 if you send string with path to JSON file for parsing, you get this exception

[mzishtiaq]

@Jesterovskiy Hey there, did you manage to solve this issue? It looks like there haven't been any updates on this gem for a while. :)

[Jesterovskiy]

@mzishtiaq gem 'oj', '3.3.6', I don't have time to fix it =(

[leoarnold]

@Jesterovskiy Let me guess: Your Gemfile.lock contains multi_json, right?

[Jesterovskiy]

@mzishtiaq ohler55/oj#441 you can start from this issue

[Jesterovskiy]

@leoarnold yes, you right

[leoarnold]

Everyone affected: please also read this explanation: ohler55/oj#441 (comment)

[leoarnold]

There is actually a long history of effort to eliminate the usage of multi_json in json-schema, but sadly it looks like efforts have stalled: #339

[mzishtiaq]

@leoarnold Thanks for the detailed explanation. That was very helpful indeed.

[leoarnold]

@Jesterovskiy This might be solved when using multi_json v1.13.0, see intridea/multi_json#183

[mzishtiaq]

@leoarnold @Jesterovskiy I can confirm that this has solved the problem and it's working now.

[Jesterovskiy]

I'm trying to ping @iainbeeston to merge his PR. I think, that multi-JSON not needed.