RFR (S) 8173361: various crashes in JvmtiExport::post_compiled_method_load

[David Holmes]

Hi Coleen,

On 15/11/2019 11:15 am, coleen.phillimore at oracle.com wrote:
> Summary: Don't post information which uses metadata from unloaded nmethods
> 
> Tested tier1-3 and 100 times with test that failed (reproduced failure 
> without the fix).
> 
> open webrev at http://cr.openjdk.java.net/~coleenp/2019/8173361.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8173361

Fix looks fine. Do we want assert "nm->method() != NULL" somewhere?

Thanks,
David

> Thanks,
> Coleen