8157957: ClassNotFoundException: jdk.test.lib.JDKToolFinder
Reviewed-by: coleenp, gtriantafill, mseledtsov, iignatyev, dholmes, dsamersoff

8161604: TestNewSizeFlags fails with RuntimeException: max new size != MaxNewSize value
Reviewed-by: sangheki, tschatzl

8153737: Unsupported Module
Reviewed-by: alanb, mchung, psandoz

8140189: [TESTBUG] Get rid of "@library /../../test/lib" in jtreg tests
Summary: Use new external.lib.roots property in TEST.ROOT so /../../test/lib is not needed.
Reviewed-by: mseledtsov, sla, iklam

8081317: [NEWTEST] documented GC ratio tuning and new size options should be covered by regression tests
Reviewed-by: iignatyev, dfazunen