Concurrency issues

[MiniDigger]

atlas has threading problems it seems. Its running into concurrent modification exceptions for getOrCreateClass on a mapping set
putting a synchronized(remapper) into the JarEntryRemappingTransformer solves it
was wondering why I was randomly missing classes, somewhere the exception gets eaten too

[jamierocks]

I believe this has been sufficiently resolved in Lorenz, for that use case. Perhaps its a good idea to allow consumers to use a single-threaded mode so that all can use Atlas.

[jamierocks]

Perhaps its a good idea to allow consumers to use a single-threaded mode so that all can use Atlas.

The plan is to allow configurable parallelism, similar to CadixDev/Lorenz@84ca071.

[jamierocks]

Atlas 0.2.1 should resolve all concerns here: you can effectively run Atlas in a single-threaded mode, and exceptions will no longer be 'eaten' during transformation.