[jdk21u-dev] RFR: 8344993: [21u] Re-introduce 8327501 and 8328366 to the JDK

[Alan Bateman]

On Mon, 25 Nov 2024 22:17:04 GMT, Martin Balao <mbalao at openjdk.org> wrote:

> Hi,
> 
> In this PR I back out 8341989 for 8327501 and 8328366 to be re-introduced to JDK 21u. I plan to propose a backport of 8342905 thereafter. Reversion of 8341989 was clean.
> 
> Thanks,
> Martin.-

src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java line 984:

> 982:             @SuppressWarnings("removal")
> 983:             SecurityManager sm = System.getSecurityManager();
> 984:             if (sm != null && isCommon)

The check should be `if (isCommon && JLA.allowSecurityManager())` as a SM can be set mid-flight even if it is super weird to do that.

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PR Review Comment: https://git.openjdk.org/jdk21u-dev/pull/1181#discussion_r1858073335