RFR(xs): 8203455: jcmd: VM.metaspace: print loader name for anonymous CLDs.
david.holmes at oracle.com
Mon May 21 02:23:18 UTC 2018
There's been a bit of discussion lately about how to "describe"
I'd rather not see another chunk of code added that 8202605 will have to
fix up. Can you live with the less-than-ideal output of the existing
function, under the expectation it will be updated to do a better job in
On 20/05/2018 4:49 PM, Thomas Stüfe wrote:
> Hi all,
> may I please have reviews for this small addition.
> Bug: https://bugs.openjdk.java.net/browse/JDK-8203455
> Webrev: http://cr.openjdk.java.net/~stuefe/webrevs/8203455-VM.metaspace-display-loader-name-for-anonymous-cld/webrev.00/webrev/
> VM.metaspace show-loaders can be used to display loaders (well, really
> CLD instances).
> For anonymous CLDs, only "anonymous" is shown. It would be helpful to
> show to which loader these CLD are assigned.
> "272: ClassLoaderData 0x00007f5ba0538f10 for anonymous class"
> After patch:
> "268: CLD 0x00007ff0c45738f0 for <anonymous class>, loaded by app,
> instance of jdk.internal.loader.ClassLoaders$AppClassLoader"
> Notes: this patch has a bit more lines than I liked because I did not
> find a singly utility function in ClassloaderData which fit my
> purpose. I wanted to see name and class of the associated loader for
> both normal and unloading case. ClassloaderData::loader_name() has a
> number of shortcomings, I opened
> https://bugs.openjdk.java.net/browse/JDK-8203456 as a follow up rfe.
> Thank you,
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