[jdk17] RFR: JDK-8266269: Lookup::accessClass fails with IAE when accessing an arrayClass with a protected inner class as component class [v2]

[Mandy Chung]

On Fri, 25 Jun 2021 18:46:30 GMT, Mandy Chung <mchung at openjdk.org> wrote:

>> `Lookup::accessClass` should determine the accessibility of the element type.  An array class is accessible if and only if its element type is accessible.
>> 
>> This also fixes a spec bug to document `@throws NullPointerException` if the argument is null.
>> 
>> Please review the CSR:
>>     https://bugs.openjdk.java.net/browse/JDK-8269312
>
> Mandy Chung has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove extra import

I also notice that  `t8150782` outliner.   It'd actually prefer to remove the directory `t8150782` or  place the tests in a directory name with descriptive name.   That can be cleaned up as a separate issue.

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PR: https://git.openjdk.java.net/jdk17/pull/137