9ef494a0_The_Scala_Programming_Language__Title
[sha] https://github.com/scala/scala/commit/c049d66 [Title] 
SI-6935 Added readResolve in BoxedUnit When deserializing Unit, it would return an instance of Object, but not a Scala Unit. By adding readResolve, the deserialization of Unit will work.
Scala 2.10.2-RC2 is now available! | The Scala Programming Language
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