RFR: JDK-8303605: Memory leaks in Metaspace gtests [v3]

[Thomas Stuefe]

On Mon, 6 Mar 2023 21:01:02 GMT, Justin King <jcking at openjdk.org> wrote:

>> Fix memory leaks identified while running Metaspace gtests.
>
> Justin King has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix sign comparision mismatch
>   
>   Signed-off-by: Justin King <jcking at google.com>

test/hotspot/gtest/metaspace/test_virtualspacenode.cpp line 544:

> 542:   delete node;
> 543:   ASSERT_EQ(scomm.get(), size_t{0});
> 544:   ASSERT_EQ(sres.get(), size_t{0});

While I personally like this, could you please keep cast style as in the rest of the hotspot? C-style or xxx_cast, your call.

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PR: https://git.openjdk.org/jdk/pull/12865