ReservedStackTest and ReservedStackTestCompiler tests failed with "This platform should be supported: amd64"

The ReservedStackTest.java and ReservedStackTestCompiler.java tests failed in tier2 testing with the following error:

----------System.err:(15/1009)----------
FAILED: This platform should be supported: amd64
java.lang.RuntimeException: This platform should be supported: amd64
at ReservedStackTest.initIsSupportedPlatform(ReservedStackTest.java:262)
at ReservedStackTest.main(ReservedStackTest.java:267)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:835)

JavaTest Message: Test threw exception: java.lang.RuntimeException: This platform should be supported: amd64
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: This platform should be supported: amd64

This could be caused by the fix for JDK-8209093