JEP 401: Value Objects (Preview) merged to OpenJDK master

6 comments

• HexDecOctBin 5 minutes ago
  What's the latest status? Is it still limited to 63-bits of data plus 1 bit for nullability?
• weinzierl 21 minutes ago
  If I understand this correctly then Integer becomes a value class and every instance of it loses its object identity.

  I do not have a lot of knowledge about the details but from the outset it seems like a rather bold move to me.

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  • agilob 10 minutes ago
    Java has a mechanism for Integer and Long objects caching using something that already looks like value object, cached objects can be compared using ==. hashCode of Integer already returns int, the boxed int value. Not much of value is lost.
• ligarota 51 minutes ago
  The MR is closed

  This is it https://github.com/openjdk/jdk/commit/cc278dbb8a1ca0754d5842...
• mi_lk 5 minutes ago
  It might disappoint some cool kids, but the death of Java has been greatly exaggerated
• whytevuhuni 1 hour ago
  How much of Valhalla is this? 50% of it? 90% of it?
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  • pjmlp 33 minutes ago
    50% maybe.

    There are other projects that depend having it in place, SIMD (vectors), reiffed generics, non nullable types.
• germandiago 1 hour ago
  2934 commits OMG... huge work.
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  • thibaut_barrere 4 minutes ago
    Yes, massive respect for that type of perseverance on long term, important changes.
  • estebank 15 minutes ago
    It's a project years in the making.