Long chains created by direct Buffer::slice

[Paul Sandoz]

Thanks, i uploaded a new webrev in place that uses a similar technique to some stuff in j.u.concurrent tests.

Paul.

> On Aug 5, 2018, at 11:59 AM, Alan Bateman <Alan.Bateman at oracle.com> wrote:
> 
> On 03/08/2018 23:15, Paul Sandoz wrote:
>> Got caught up with JVMLS this week…
>> 
>> I searched but could not find a test, so i added one, see:
>> 
>>   http://cr.openjdk.java.net/~psandoz/jdk/JDK-8208362-direct-buffer-att/webrev/ <http://cr.openjdk.java.net/~psandoz/jdk/JDK-8208362-direct-buffer-att/webrev/>
>> 
> One comment on the test is that the references to the intermediate refs may not be cleared immediately after the GC. It might be more reliable to loop, with a backoff, until at least one has been cleared.
> 
> -Alan