RFR: 8269770: nsk tests should start IOPipe channel before launch debuggee - Debugee.prepareDebugee [v2]

[Alex Menkov]

On Fri, 2 Jul 2021 19:30:11 GMT, Alex Menkov <amenkov at openjdk.org> wrote:

>> The change fixes several hundreds tests which launch debugee by using uses Debugee.prepareDebugee() method or use 
>> debugee = Binder.bindToDebugee(...);
>> IOPipe pipe = debugee.createIOPipe();
>> logic.
>> Debugee.prepareDebugee() and Binder.bindToDebugee() launch debuggee by using CommandLineLaunch JDI connector with suspend=="true" argument, so they return debuggee suspended before the main class is loaded.
>> The fix starts IOPipe listening before debuggee VM is resumed.
>> 
>> Simplified isPackagePrivate/accipp001.java test to use Debugee.prepareDebugee() - it does exactly the same as Debugee.prepareDebugee() does (the only difference is using deprecated IOPipe ctor instead of Debugee.createIOPipe())
>> 
>> Tested all affected tests:
>> test/hotspot/jtreg/vmTestbase/nsk/jdi
>> test/hotspot/jtreg/vmTestbase/nsk/jdwp
>> test/hotspot/jtreg/serviceability/dcmd
>
> Alex Menkov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fixed comment

Ping. Still looking for 2nd reviewer

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PR: https://git.openjdk.java.net/jdk/pull/4659