<i18n dev> RFR: 8301492: Modernize equals() method of ResourceBundle.CacheKey and Bundles.CacheKey

[Mandy Chung]

On Tue, 31 Jan 2023 11:40:43 GMT, Sergey Tsypanov <stsypanov at openjdk.org> wrote:

> `ResourceBundle.CacheKey.equals()` and `Bundles.CacheKey.equals()` are quire outdated. This simple clean-up modernizes them.

return moduleRef.refersTo(otherEntry.getModule()) &&
        callerRef.refersTo(otherEntry.getCallerModule());


You need to check if module and caller module are non-null. 

`equals` returns true only if the module and callerModule of this `CacheKey` and other `CacheKey` are the same and non-null.

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PR: https://git.openjdk.org/jdk/pull/12328