RFR: JDK-8292064 Convert java/lang/management/MemoryMXBean shell tests to java version

[Bill Huang]

On Tue, 9 Aug 2022 21:14:39 GMT, Bill Huang <duke at openjdk.org> wrote:

> This task converts 5 shell tests below to java version. 
> test/java/lang/management/MemoryMXBean/LowMemoryTest2.sh 
> test/java/lang/management/MemoryMXBean/MemoryManagementParallelGC.sh 
> test/java/lang/management/MemoryMXBean/MemoryManagementSerialGC.sh 
> test/java/lang/management/MemoryMXBean/MemoryTestAllGC.sh 
> test/java/lang/management/MemoryMXBean/PendingAllGC.sh

It sounds good to me as long as we don't lose coverage. I will update the scripts.

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PR: https://git.openjdk.org/jdk/pull/9813