On Mon, 28 Nov 2022 01:12:18 GMT, David Holmes <[email protected]> wrote:
>> test of tier1-5 passed.
>
> src/hotspot/share/prims/jvmtiTagMap.cpp line 254:
>
>> 252: if (obj_tag != current_tag ) {
>> 253: hashmap->remove(o);
>> 254: hashmap->add(o, obj_tag);
>
> This change is not atomic - is that a problem? The concurrency aspects of
> using this map are not clear.
add() is supposed to add a new object with tag. There is an assert() in its
body that checks it. By removing the assert, add() can be used for updating as
well.
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PR: https://git.openjdk.org/jdk/pull/11288
