What's new in version 0.23.0

The following new features and notable changes since version 0.22.0 are included in this release:

• -XX:[+|-]IdleTuningCompactOnIdle option now inactive
• Support for OpenJDK HotSpot options

Features and changes

-XX:[+|-]IdleTuningCompactOnIdle option now inactive

Setting the -XX:[+|-]IdleTuningCompactOnIdle option now has no effect. A compaction is triggered by internal heuristics that look into the number of fragmented pages. Typically there is no need to force a compaction. This option was deprecated in release 0.15.0, and will be removed in the future. See -XX:[+|-]IdleTuningCompactOnIdle for details about this option.

Support for OpenJDK HotSpot options

For compatibility, the following OpenJDK HotSpot options are now supported by OpenJ9:

• -XX:[+|-]AlwaysPreTouch