[MNG-8687] Restore compat classes ability to work on JIMFS (partially)

[jira-importer]

Tamas Cservenak opened MNG-8687 and commented

The Resolver 2 can, but accompanying (Maven compat) classes lost this ability due work in MNG-8494. IMO we need to restore this capability, but we need to be very careful to not break binary compatibility.

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Remote Links:

• GitHub Pull Request #2256
  

[jira-importer]

Tamas Cservenak commented

The Resolver "demos" now work on JIMFS, but I want to verify it with MIMA ITs as well before I close this issue.

[jira-importer]

Tamas Cservenak commented

Sadly, this is not simple, the effort put into this would be huge. Moreover, the old patches are not applicable, as they were made against "drifted" source (and not against original classes, those restored by MNG-8494). So I am punting on this: Maven4 "compat" modules are not JIMFS capable fully (Resolver demos do work, but for example MIMA MMR extension – full access to model reader does not).