New candidate JEP: 531: Lazy Constants (Third Preview)

[Mark Reinhold]

https://openjdk.org/jeps/531

  Summary: Introduce an API for lazy constants, which are objects that
  hold unmodifiable data.  Lazy constants are treated as true constants
  by the JVM, enabling the same performance optimizations that are
  enabled by declaring a field final.  Compared to final fields, however,
  lazy constants offer greater flexibility as to the timing of their
  initialization.  This is a preview API.

- Mark