Multipart filename support RFC6266 without language #4943
  Add this suggestion to a batch that can be applied as a single commit.
  This suggestion is invalid because no changes were made to the code.
  Suggestions cannot be applied while the pull request is closed.
  Suggestions cannot be applied while viewing a subset of changes.
  Only one suggestion per line can be applied in a batch.
  Add this suggestion to a batch that can be applied as a single commit.
  Applying suggestions on deleted lines is not supported.
  You must change the existing code in this line in order to create a valid suggestion.
  Outdated suggestions cannot be applied.
  This suggestion has been applied or marked resolved.
  Suggestions cannot be applied from pending reviews.
  Suggestions cannot be applied on multi-line comments.
  Suggestions cannot be applied while the pull request is queued to merge.
  Suggestion cannot be applied right now. Please check back later.
  
    
  
    
The RFC6266 does support having a language identifier as part of an encoded filename (content disposition param filename*), however the current Jersey Multipart parsing will not decode the filename if the language identifier is not present.
Example:
Currently when you bind this request to FormDataContentDisposition parameter the filename field value will be
utf-8''myfile.pdf, but I would really expect it to bemyfile.pdf