Eclipse Neon Json editor

 

Is it possible to allow comments in JSON file?

I have a JSON file with comment lines marked with // on the beginning. The file is properly read by com.fasterxml.jackson.databind.ObjectMapper , but JSON editor marks it as error (Expected value at row:column ) and whole project is marked with error. Is it possible to allow comments or disable validation for one file only?

Because the JSON format is very simple, Eclipse's built-in JSON validation doesn't provide any granular control over what is marked as an error.

I see two options:

  • Use pseudo-comments as described here.
  • Disable JSON validation for that specific file.
  • Window > Preferences > Validation
  • In the 'Validator' list, find "JSON Validator" and click the '...' in the Settings column
  • Add an exclude group, then add a rule for the specific file you want the validator to ignore

    • As an aside, the JSON format doesn't support any kind of comment notation. Strictly speaking, that error message is correct - but in this case the parser you're using (Jackson) is configured to allow something out-of-spec.

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