Skip to Main Content
Cloud Platform


This is an IBM Automation portal for Cloud Platform products. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


Shape the future of IBM!

We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:

Search existing ideas

Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,

Post your ideas
  1. Post an idea.

  2. Get feedback from the IBM team and other customers to refine your idea.

  3. Follow the idea through the IBM Ideas process.


Specific links you will want to bookmark for future use

Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.

ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.


Status Not under consideration
Created by Guest
Created on Oct 5, 2022

IBM Java 8 and above tuning option for PhantomReference processing

Please introduce a tuning option into IBM Java 8 and above that we can use to tune the aggressiveness of how often the JVM marks objects as phantomly reachable. If this is introduced then it could help avoid memory related problems
Idea priority High
  • Admin
    Alasdair Nottingham
    Oct 26, 2022

    The Java specifications with PhantomReference was recently improved according to the following link :

    https://jcp.org/aboutJava/communityprocess/maintenance/jsr337/jsr337-mr4-changes.html

    We have recently improved our implementation of Phantom Reference in Java 8.0.7.20. Memory reclamation of Phantom References is more aggressive, aligned with Weak References.

    We have discussed with Kevin Grigorenko, and have agreed an option similar to -Xsoftrefthreshold is not required anymore.