JDK-8154755 : Add a VarHandle weakCompareAndSet with volatile semantics
- Type: Sub-task
- Component: core-libs
- Sub-Component: java.lang.invoke
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2016-04-20
- Updated: 2017-05-17
- Resolved: 2016-04-29
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| JDK 9 |
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9 b117Fixed  |
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Relates :
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Description
VarHandle has a weakCompareAndSet method with "plain" semantics. A compareAndSet cannot reliably be replaced with a weak variant on platforms that support LL/SC. See here for more details: http://mail.openjdk.java.net/pipermail/jmm-dev/2016-April/000239.html A variant with "volatile" semantics should be added e.g. weakCompareAndSetVolatile. JDK change: http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8154755-weak-cas-volatile/webrev/
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