RFR 8208697: vmTestbase/metaspace/stressHierarchy/stressHierarchy012/TestDescription.java fails with OutOfMemoryError: Metaspace

[Lois Foltan]

On 9/7/2018 6:07 PM, coleen.phillimore at oracle.com wrote:
> Summary: remove timeoutHandler class and let Stresser handle timeout, 
> remove 30 threads filling metaspace, and remove related unused files.
>
> This also fixes a compilation warning in GeneratingClassLoader.java 
> (unreachable try block).
>
> open webrev at http://cr.openjdk.java.net/~coleenp/8208697.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8208697
>
> Tested 300+ times without failure.  Usual rate is 2-100.
>
> Thanks,
> Coleen
>
Hi Coleen,

Looks good.  One minor comment:

nsk/share/classload/GeneratingClassLoader.java:
line #123 - should there be some sort of throw if an exception is thrown 
that is not a UnsupportedEncodingException?  Otherwise the byte[] array 
returned would be garbage?

Thanks,
Lois