RFR(XXS) JDK-8186778 Deprecate VM options for shared region size control

[harold seigel]

Looks good.

Thanks, Harodl


On 8/25/2017 2:19 PM, Ioi Lam wrote:
> Hi, please review this very small change. The corresponding CSR has 
> been approved.
>
> https://bugs.openjdk.java.net/browse/JDK-8186778
>
> Since JDK-8072061 (Automatically determine optimal sizes for the CDS 
> regions) is integrated,
> the following 4 options are no longer necessary, and they are no 
> longer used by the VM
> anymore. Hence, these options should be deprecated:
>
>     SharedReadWriteSize
>     SharedReadOnlySize
>     SharedMiscDataSize
>     SharedMiscCodeSize
>
> hotspot$ hg diff
> diff -r 3a8e59bdaaac src/share/vm/runtime/arguments.cpp
> --- a/src/share/vm/runtime/arguments.cpp    Thu Aug 24 14:00:04 2017 
> +0000
> +++ b/src/share/vm/runtime/arguments.cpp    Fri Aug 25 11:16:29 2017 
> -0700
> @@ -379,6 +379,10 @@
>  static SpecialFlag const special_jvm_flags[] = {
>    // -------------- Deprecated Flags --------------
>    // --- Non-alias flags - sorted by obsolete_in then expired_in:
>    { "MaxGCMinorPauseMillis", JDK_Version::jdk(8), 
> JDK_Version::undefined(), JDK_Version::undefined() },
>    { "UseConcMarkSweepGC",    JDK_Version::jdk(9), 
> JDK_Version::undefined(), JDK_Version::undefined() },
>    { "MonitorInUseLists", 
> JDK_Version::jdk(10),JDK_Version::undefined(), 
> JDK_Version::undefined() },
> +  { "SharedMiscCodeSize", 
> JDK_Version::jdk(10),JDK_Version::undefined(), 
> JDK_Version::undefined() },
> +  { "SharedMiscDataSize", 
> JDK_Version::jdk(10),JDK_Version::undefined(), 
> JDK_Version::undefined() },
> +  { "SharedReadOnlySize", 
> JDK_Version::jdk(10),JDK_Version::undefined(), 
> JDK_Version::undefined() },
> +  { "SharedReadWriteSize", 
> JDK_Version::jdk(10),JDK_Version::undefined(), 
> JDK_Version::undefined() },
>
>    // --- Deprecated alias flags (see also aliased_jvm_flags) - sorted 
> by obsolete_in then expired_in:
>    { "DefaultMaxRAMFraction", JDK_Version::jdk(8), 
> JDK_Version::undefined(), JDK_Version::undefined() },
>