RFR: JDK-8272318: Improve performance of HeapDumpAllTest

[Chris Plummer]

On Wed, 11 Aug 2021 13:05:06 GMT, Ralf Schmelter <rschmelter at openjdk.org> wrote:

> This change triggers a GC by System.gc() in the test case, so the created heap dump is significantly smaller and the test runs much faster.

Is there a reason you don't want this change to also apply to HeapDumpTest?

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PR: https://git.openjdk.java.net/jdk/pull/5084