On Wed, 6 Mar 2024 22:58:54 GMT, Viktor Klang <vkl...@openjdk.org> wrote:

> The common ForkJoinPool creating threads as a result of submitting tasks is 
> preventing class unloading when the thread construction is initiated from a 
> class loaded in a separate classloader. This fix avoids that when no 
> SecurityManager is configured.

Marked as reviewed by alanb (Reviewer).

The inherited access control context bites again. Creating a Thread takes a 
snapshot of the caller context which can include several protection domains. In 
the bug report it includes a ProtectionDomain for a custom class loader. The 
good news is that removal of the security manager mode of execution means that 
this can go away.

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PR Review: https://git.openjdk.org/jdk/pull/18144#pullrequestreview-1921749299
PR Comment: https://git.openjdk.org/jdk/pull/18144#issuecomment-1982882897

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