Integrated: 8375119: SwitchBoostraps.enumSwitch does not throw an NPE when lookup is null in some cases

[Jan Lahoda]

On Tue, 13 Jan 2026 18:05:43 GMT, Jan Lahoda <jlahoda at openjdk.org> wrote:

> The `SwitchBootstraps.enumSwitch` is documented to throw a `NullPointerException` when `lookup` is `null`, but it does not throw the exception in all cases.
> 
> Given the `lookup` is in some cases required, the proposal herein is to properly check `lookup` is not `null`. And while doing that, I added similar checks for `invocationType` and `labels` - those were checked implicitly, but doing the check explicitly is better. Note `invocationName` is unused and is permitted to be `null`, and hence there's no check for it.
> 
> Please also review the CSR:
> https://bugs.openjdk.org/browse/JDK-8375120

This pull request has now been integrated.

Changeset: 315bf07b
Author:    Jan Lahoda <jlahoda at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/315bf07b23ad6c5f86fc8fe976abd9e9a8548404
Stats:     41 lines in 2 files changed: 35 ins; 0 del; 6 mod

8375119: SwitchBoostraps.enumSwitch does not throw an NPE when lookup is null in some cases

Reviewed-by: liach

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PR: https://git.openjdk.org/jdk/pull/29202