Reproduce:

• Import a file with the following content:

  this is not valid json
  

Expected:

• Backend response is a JSON object with a valid errorCode that can be used to display an error notification

Observed:

• Backend response is

  Unrecognized token 'this': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false')
   at [Source: (org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$UnCloseableInputStream); line: 1, column: 6]