Time to put a stop to Thread.stop?

Chris Hegarty chris.hegarty at oracle.com
Fri May 24 13:43:20 UTC 2013

All looks good to me.


On 24/05/2013 14:18, Alan Bateman wrote:
> Thanks to everyone for the discussions and suggestions on this topic. I
> would like to proceed with the original proposal to change
> stop(Throwable) to throw UOE unconditionally. This means so special
> casing for ThreadDeath or the current thread. The no-arg Thread.stop()
> is not impacted.
> I think it's reasonable to say that this method is not widely used.
> Mandy did a static analysis of thousands of unique artifacts in maven
> and we found only a tiny number of usages. Other corpora were searched
> too. A number of people mailed me privately to report sightings, in
> almost all cases the usages were completely broken and never worked
> (incorrect assumption that Thread.stop would wake-up threads blocked in
> I/O in at least two cases).
> Clearly this change is significant and will need to documented in
> compatibility notes and migration documentation.
> The webrev with the proposed changes is here. As I mentioned in one of
> the replies, there are 4 j.u.c tests that need to be updated so I've
> changed these tests to use Unsafe.throwException.
> http://cr.openjdk.java.net/~alanb/7059085/webrev/
> -Alan.

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