RFR: 8224764 - Create jtreg test for JDK-8222252

[Bob Vandette]

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> On Jun 18, 2019, at 8:28 AM, Bob Vandette <bob.vandette at oracle.com> wrote:
> 
> Please review this new test that verifies the updated behavior for -XX:MaxRAMPercentage and -XX:MaxRAM
> as documented in these two bugs:
> 
> https://bugs.openjdk.java.net/browse/JDK-8213175 - Java ergonomics limits heap to 32GB to allow compressed oops
> https://bugs.openjdk.java.net/browse/JDK-8222252 - Java ergonomics limits heap to 128GB with disabled compressed oops
> 
> BUG:
> https://bugs.openjdk.java.net/browse/JDK-8224764
> 
> WEBREV:
> http://cr.openjdk.java.net/~bobv/8224764/webrev.00
> 
> The test attempts to set MaxRAM 1G below and above the Maximum Heap size
> allowed by CompressedOops and verifies that compressed oops is disabled when
> the requested heap size is above the limit.  It also verifies that if UseCompressedOops
> is specified, it will limit the heap size.
> 
> Bob.
> 
> 
> 
>