RFR: 8293012: ConstantPool::print_on can crash if _cache is NULL

[David Holmes]

On Mon, 29 Aug 2022 05:50:38 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Please review this simple fix to avoid a crash when debugging the constant pool.
>> 
>> Testing: tier1 sanity
>> 
>> Thanks,
>> David
>
> Looks fine.

Thanks for the reviews @shipilev  and @robehn !

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PR: https://git.openjdk.org/jdk/pull/10059