RFR: 8270321: Startup regressions in 18-b5 caused by JDK-8266310

[Alan Bateman]

On Sun, 25 Jul 2021 12:06:49 GMT, Sergey Chernyshev <github.com+6394632+sercher at openjdk.org> wrote:

> I don't understand your analysis, you are testing the startup time with -Xint which disable JITs, but there is no mention of -Xint in the bug report.
> It's obvious to me that there is a regression with -Xint given that the lambda creation is using invokedynamic which is only optimizable by JITs.

Eric Caspole (the submitter) may be able to share more data but the startup regression looks plausible given that this code executes early in the startup.

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PR: https://git.openjdk.java.net/jdk/pull/4893