What methods should go into a java.util.Objects class in JDK 7? (original) (raw)

Tom Hawtin Thomas.Hawtin at Sun.COM
Mon Oct 12 11:54:38 UTC 2009

Joseph D. Darcy wrote:

Classes with only private constructors, like j.u.Objects, are effectively final. Adding final is harmless but unnecessary in these cases. The platform is a bit inconsistent here; j.u.Collections is not marked final while j.l.Math is.

For a certain value of effective. Current Java source may not subclass a non-final class with only private constructors. I believe a verfiable subclass can be created as a class file that does not have a constructor (or possibly definitely throws an exception?). Unless something is seriously wrong, that shouldn't cause a security issue. It might be an issue for other languages on the JVM.

In practice, it doesn't matter very much; I'll consider final-izing j.u.Objects on the next round of edits.

Oh don't put a finalizer on it. ;)

Tom Hawtin

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