RFR:8222302:[TESTBUG]test/hotspot/jtreg/compiler/intrinsics/sha/cli/TestUseSHAOptionOnUnsupportedCPU.java fails on any other CPU

[Jie Fu]

Hi all,

JBS:    https://bugs.openjdk.java.net/browse/JDK-8222302
Webrev: http://cr.openjdk.java.net/~jiefu/8222302/webrev.00/

TestUseSHAOptionOnUnsupportedCPU.java fails on any other CPU (not 
AArch64, PPC, S390x, SPARC or X86).
It is designed to test "UseSHASpecificTestCaseForUnsupportedCPU"[1] and 
"GenericTestCaseForOtherCPU"[2] on any other CPU[3].
But when they run on any other CPU (e.g., mips), an exception[4] is 
always thrown, which causes the failure.
So there seems to be a logical bug in it.

The change has been tested on mips and x86.
Could you please review it?
Thanks a lot.

Best regards,
Jie

[1] 
http://hg.openjdk.java.net/jdk/jdk/file/bf07e140c49c/test/hotspot/jtreg/compiler/intrinsics/sha/cli/TestUseSHAOptionOnUnsupportedCPU.java#l56
[2] 
http://hg.openjdk.java.net/jdk/jdk/file/bf07e140c49c/test/hotspot/jtreg/compiler/intrinsics/sha/cli/TestUseSHAOptionOnUnsupportedCPU.java#l58
[3] 
http://hg.openjdk.java.net/jdk/jdk/file/bf07e140c49c/test/hotspot/jtreg/compiler/intrinsics/sha/cli/testcases/GenericTestCaseForOtherCPU.java#l34
[4] 
http://hg.openjdk.java.net/jdk/jdk/file/bf07e140c49c/test/hotspot/jtreg/compiler/intrinsics/sha/cli/SHAOptionsBase.java#l92