On 1/7/14 2:26 PM, Joe Darcy wrote:
public abstract class Ref {
So the type has been deprecated for at least 10 years. Rather than fixing the
warning in the class, I think the best course of action is to remove the file in
JDK 9. A build of OpenJDK without this file builds fine; if a build of the
closed sources goes fine to, I think that should be sufficient justification for
this type to be removed.
Using code search engines, there are just a handful of references to
sun.misc.Ref in the wihld, but any such uses will have several years to migrate
to the standard java.util.SoftReference before JDK 9 ships.
When in doubt, take it out.
I had a small concern about whether sun.misc.Ref still might have had some
dependencies from the JVM (i.e. special support like the java.lang.ref classes),
but it looks like sun.misc.Ref itself is entirely implemented in terms of
java.lang.ref.SoftReference. I did a quick search of hotspot and I couldn't find
any mentions of sun.misc.Ref, so I think we're clear.
s'marks
