RFR 9: 8138696 : java.lang.ref.Cleaner - an easy to use alternative to finalization

[Chris Hegarty]

On 15 Oct 2015, at 14:21, Roger Riggs <Roger.Riggs at oracle.com> wrote:

> ...
> 
> Also, I've seen a few calls to super.finalize() where there were no finalizers
> in any of the superclasses.  It would be considered good design to always include it.
> I don't know if the optimization for empty finalize methods includes the
> case where it only calls super.finalize().

I believe it is only for empty finalize methods.

http://hg.openjdk.java.net/jdk9/jdk9/hotspot/file/tip/src/share/vm/classfile/classFileParser.cpp#l2506
http://hg.openjdk.java.net/jdk9/jdk9/hotspot/file/tip/src/share/vm/classfile/classFileParser.cpp#l4509

-Chris.