On Fri, 11 Apr 2025 23:23:52 GMT, Chris Plummer <cjplum...@openjdk.org> wrote:

> This is just a preliminary review. I'd like to get some approval for the 
> approach I'm taking. There are over 300 tests that need to be fixed. I've 
> just fixed a handful in this PR to give a feel for the changes I plan on 
> making. If they look ok to you, then I'll update this PR with the needed 
> changes to the rest of the tests.
> 
> What this PR is fixing is the issue with all of our nsk/jdi testing being 
> done with includevirtualthreads=y even though debuggers typically use the 
> default includevirtualthreads=n. As a result we have a testing gap with 
> includevirtualthreads=n. There are nearly 1200 nsk/jdi tests. Only about 350 
> actually need includevirtualthreads=y. I plan making includevirtualthreads=n 
> the default for nsk/jdi tests unless the test does something to override the 
> default and request includevirtualthreads=y.
> 
> includevirtualthreads=y forces the debug agent to track all virtual threads 
> so they are returned by vm.allThreads(). Some tests need this since they use 
> vm.allThreads() to find the debuggee threads. Without 
> includevirtualthreads=y, vm.allThreads() usually won't return any virtual 
> threads (although it might return some for which events have been triggered).

Used approach (call a special method of Binder class) is different from 
standard way of nsk framework to customize test settings.
Standard way assumes settings like this are specified in "@run" as an option 
(like "-includevirtualthreads=y" or "-includevirtualthreads"),
ArgumentHandler parses it (in this case maybe it should be parsed by 
nsk/share/jpda/DebugeeArgumentHandler.java) and provides a method to get the 
value,
Binder calls the method and sets connector argument.
I'm not a fun of this approach, but I think that handling different settings in 
different ways would make the code even harder to understand

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PR Comment: https://git.openjdk.org/jdk/pull/24606#issuecomment-2811367443

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