RFR: 8292375: Convert ProtectionDomainCacheTable to ResourceHashtable [v3]

[Coleen Phillimore]

On Fri, 26 Aug 2022 17:07:54 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Please review this simple conversion for the ProtectionDomainCacheTable from Old Hashtable to ResourceHashtable.  There are specific tests for this table in test/hotspot/jtreg/runtime/Dictionary and serviceability/dcmd/vm/DictionaryStatsTest.java.
>> Also tested with tier1-7.
>
> Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   include mutexLocker.hpp for minimal build.

Thanks for reading through this.  I was going to make a larger change, then changed my mind.  This conversion is limited.  It is able to take advantage of the ability to copy WeakHandle without side effects, so that we don't have to store ProtectionDomainCacheEntry into the pd_set linked list, which makes it nicer.

-------------

PR: https://git.openjdk.org/jdk/pull/10043