[jdk21u-dev] RFR: 8332506: SIGFPE In ObjectSynchronizer::is_async_deflation_needed()

[Paul Hohensee]

On Wed, 2 Apr 2025 10:33:08 GMT, Roman Marchenko <rmarchenko at openjdk.org> wrote:

> This is backport of "[JDK-8332506](https://bugs.openjdk.org/browse/JDK-8332506) SIGFPE In ObjectSynchronizer::is_async_deflation_needed()".
> 
> This fixes division by zero problem in JDK21 as there are cases the problem occurs in 21.
> 
> Backport is almost clean, I resolved a few minor conflicts (copyright, and type conversion differences).

Marked as reviewed by phh (Reviewer).

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PR Review: https://git.openjdk.org/jdk21u-dev/pull/1566#pullrequestreview-2736829305