JDK-8071507 : (ref) Clear phantom reference as soft and weak references do
  • Type: Enhancement
  • Component: core-libs
  • Sub-Component: java.lang
  • Affected Version: 9
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • Submitted: 2015-01-23
  • Updated: 2022-04-28
  • Resolved: 2015-12-28
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JDK 8 JDK 9
8u42Fixed 9 b103Fixed
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Sub Tasks
JDK-8173071 :  
Description
Soft and weak references are automatically-cleared references (i.e. these references are cleared by the collector before it's enqueued) whereas phantom reference is not an automatically-cleared reference.  Instead, the get method of a phantom reference always returns null to ensure that the referent of a phantom reference may not be retrieved.

This proposes to make phantom references automatically-cleared reference as soft and weak references do.

Comments
A pull request was submitted for review. URL: https://git.openjdk.java.net/jdk8u-ri/pull/4 Date: 2022-04-19 18:01:20 +0000
19-04-2022

URL: http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/107dae30be84 User: lana Date: 2016-01-27 21:42:23 +0000
27-01-2016

URL: http://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/42ccdfe56796 User: lana Date: 2016-01-27 21:42:04 +0000
27-01-2016

URL: http://hg.openjdk.java.net/jdk9/hs-rt/jdk/rev/42ccdfe56796 User: kbarrett Date: 2015-12-28 20:45:47 +0000
28-12-2015

URL: http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/107dae30be84 User: kbarrett Date: 2015-12-28 20:45:45 +0000
28-12-2015