8023735: [TESTBUG][macosx] runtime/XCheckJniJsig/XCheckJSig.java fails on MacOS X
8208701: Fix for JDK-8208655 causes test failures in CI tier1
8208706: compiler/tiered/ConstantGettersTransitionsTest.java fails to compile
8186095: upgrade to jtreg 4.2 b08
8183503: Update hotspot tests to allow for unique test classes directory
8213410: UseCompressedOops requirement check fails fails on 32-bit system
Reviewed-by: stuefe, sgehwolf
Backport-of: 17b730d7edf7be91ee841180ea6a59b26c0c567a