RFR: 8313798: [aarch64] sun/tools/jhsdb/HeapDumpTestWithActiveProcess.java sometimes times out on aarch64

[Chris Plummer]

On Thu, 10 Aug 2023 17:01:30 GMT, Kevin Walls <kevinw at openjdk.org> wrote:

> Looks good to me, although do you think it could return null rather than throw a RuntimeException? Concerned we might not always want the Tool to fail and end there.

I chose throwing an exception, because this is what more commonly happens when you get a bad frame. You end up with some sort of AddressException, NPE, or a WrongTypeException while exploring garbage. See [JDK-8313800](https://bugs.openjdk.org/browse/JDK-8313800), especially the following comment:

> There are also other exceptions being thrown with similar stack traces (they didn't cause the [JDK-8313798](https://bugs.openjdk.org/browse/JDK-8313798) timeout because an exception was thrown instead of getting in an infinite loop):

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

PR Comment: https://git.openjdk.org/jdk/pull/15183#issuecomment-1673732561