JDK-8218905 : Release Note: ZGC: Concurrent Class Unloading
- Type: Sub-task
- Component: hotspot
- Sub-Component: gc
- Affected Version: 12
- Priority: P4
- Status: Closed
- Resolution: Delivered
- Submitted: 2019-02-13
- Updated: 2019-04-09
- Resolved: 2019-02-19
The Version table provides details related to the release that this issue/RFE will be addressed.
Unresolved : Release in which this issue/RFE will be addressed.
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Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
| JDK 12 |
|---|
12Resolved  |
Description
The Z Garbage Collector now supports class unloading. By unloading unused classes, data structures related to these classes can be freed, lowering the overall footprint of the application. Class unloading in ZGC happens concurrently, without stopping the execution of Java application threads, and has zero impact on GC pause times. This feature is enabled by default, but can be disabled by using the command line option `-XX:-ClassUnloading`.