RFR: 8252003: remove usage of PropertyResolvingWrapper in vmTestbase/nsk/jvmti

[Igor Ignatyev]

On Wed, 30 Sep 2020 16:52:01 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>> Hi all,
>> 
>> could you please review the patch which removes `PropertyResolvingWrapper` from `vmTestbase/nsk/jvmti` tests? as
>> `jtreg` doesn't support spaces in the arguments and doesn't handle `"` in any special ways, the patch also:
>>  - `s/"-javaOpts=/-javaOpts="/`
>>  - makes `nsk.jvmti.scenarios.general_functions.GF08` to use 2nd arg as `verboseType` and 3rd and the rest args
>>    concatenated as `phrase` and updates the tests accordingly
>>  - removes spaces and surrounding `"` from `nsk.jvmti.test.property*`
>>  - removes `"` surrounding `-agentlib:`, replaces spaces in `-agentlib` with `,` and updates `ArgumentHandler` to treat
>>    `,` (as well as ` ` and `~`) as options delimiters, so it's consistent w/ `jvmti_tools.cpp`
>> 
>> testing: ✅  `vmTestbase/nsk/jvmti` on {linux,windows,macos}-x64
>
> test/hotspot/jtreg/vmTestbase/nsk/share/jvmti/ArgumentHandler.java line 157:
> 
>> 155:             return;
>> 156:
>> 157:         StringTokenizer st = new StringTokenizer(optionString, " ~,");
> 
> I don't see jvmti_tools.cpp changes as part of this PR. Can you elaborate on why this change is needed now.

`jvmti_tools.cpp` wasn't changed by this PR, `jvmti_tools.cpp` always accepted ` `, `~` and/or `,` as delimiters[[*]].
as jtreg splits arguments by space symbol, we can't use ` ` in `-agentlib:`, so we had to change the delimiter used
there to either `,` or `~`, `nsk/share/jvmti/ArgumentHandler` takes these options (via `getAgentOptionsString`) and
then parse in `parseOptionString`. but `parseOptionString` was using `StringTokenizer` w/ default delimiters, ie `
\t\n\r\f`, and as a result it wasn't splitting options correctly after we changed the delimiter used in tests'
`-agentlib`. in other words, this change is just fixing an old bug which we didn't care before as we always used ` ` in
this agent's options.

[*]: https://github.com/openjdk/jdk/blob/master/test/hotspot/jtreg/vmTestbase/nsk/share/jvmti/jvmti_tools.cpp#L224

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PR: https://git.openjdk.java.net/jdk/pull/370