Summary

Obsolete the unused AssertOnSuspendWaitFailure and TraceSuspendWaitFailures flags

Problem

The AssertOnSuspendWaitFailure and TraceSuspendWaitFailures flags became unused in JDK16 and should have been obsoleted at the time.

Solution

Obsolete the flags now so that their use will generate a warning.

Specification

> +++ b/src/hotspot/share/runtime/arguments.cpp 
   >      // -------------- Obsolete Flags - sorted by expired_in --------------
> +  { "AssertOnSuspendWaitFailure",   JDK_Version::undefined(), JDK_Version::jdk(17), JDK_Version::jdk(18) },
> +  { "TraceSuspendWaitFailures",     JDK_Version::undefined(), JDK_Version::jdk(17), JDK_Version::jdk(18) },  

> +++ b/src/hotspot/share/runtime/globals.hpp 
> -  product(bool, AssertOnSuspendWaitFailure, false,                          \
> -          "Assert/Guarantee on external suspend wait failure")              \
> -                                                                            \
> -  product(bool, TraceSuspendWaitFailures, false,                            \
> -          "Trace external suspend wait failures")                           \