RFR: 8304919: Implementation of Virtual Threads [v6]

[Alan Bateman]

On Fri, 7 Apr 2023 06:41:26 GMT, Jaikiran Pai <jpai at openjdk.org> wrote:

> The lambda here uses `System.out` to format and print and there's a loop which converts each collect `StackFrame` to a printable `StackTraceElement`. I had a brief look at the internals of the classes involved, but couldn't spot any code that instantiates or calls `set()` on any `ThreadLocal`s. Is there any specific code here which would trigger recursive thread-local usage or is it more a precaution to prevent any such potential usage.

Formatting is locale specific and amounts to running arbitrary code, so this cod has to defend against recursive calls.

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PR Review Comment: https://git.openjdk.org/jdk/pull/13203#discussion_r1160478956