RFR: 8266936: Add a finalization JFR event [v16]

[Markus Grönlund]

On Thu, 14 Oct 2021 21:43:27 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Markus Grönlund has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR.
>
> src/hotspot/share/jfr/support/jfrSymbolTable.cpp line 75:
> 
>> 73: 
>> 74: JfrSymbolTable::JfrSymbolTable() :
>> 75:   _symbol_table(new SymbolTable(this)),
> 
> I'm confused about which symbol table this is.  Is this the same SymbolTable as classfile/symbolTable.cpp? that instance is assumed to be a singleton.  Is this a different SymbolTable and can it have a different name (thought it was JfrSymbolTable).

Renamed.

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PR: https://git.openjdk.java.net/jdk/pull/4731