8033787: [TESTBUG] Few jdk regression management tests should be improved with -XX:+UsePerfData usage
Reviewed-by: dholmes

Reviewed-by: erikj

Reviewed-by: alanb, dsamersoff

Reviewed-by: alanb, dsamersoff, jbachorik

Reviewed-by: pchelko, serb

8032078: [macosx] CPlatformWindow.setWindowState throws RuntimeException, if windowState=ICONIFIED|MAXIMIZED_BOTH
Reviewed-by: pchelko, serb

Reviewed-by: chegar

Reviewed-by: chegar, ewang

Summary: Add missing 8030875 changes in 8u
Reviewed-by: mchung, kvn

Reviewed-by: sla
Contributed-by: sunny.chan@gs.com

Reviewed-by: serb, azvegint

Reviewed-by: serb, azvegint

Reviewed-by: mullan

Reviewed-by: xuelei, juh

Reviewed-by: anthony, art

8017456: [TEST_BUG] java/awt/DataFlavor/MissedHtmlAndRtfBug/MissedHtmlAndRtfBug.html: test frames remain after test execution
Reviewed-by: serb, alexsch

Reviewed-by: mchung

Reviewed-by: bae, serb

Reviewed-by: art, anthony

Reviewed-by: coffeys

Reviewed-by: jgodinez

Reviewed-by: rriggs, mchung, mduigou

8029876: Add a test to verify that Logger.getLogger & LogManager.getLogManager don't throw NPE when System.out == null
Summary: Adds a new test that verifies that the suspected root cause of JDK-8025512 does not cause NPE to be thrown.
Reviewed-by: mchung

Reviewed-by: jgodinez, serb

Reviewed-by: sla, sjiang

Reviewed-by: dfuchs, sjiang

Reviewed-by: psandoz

Reviewed-by: coffeys

Summary: fix another case of potentially premature Logger garbage collection in tests.
Reviewed-by: mchung

Reviewed-by: prr, bae

Summary: Change multiply(BigInteger a) to return square() if a == this and the number of ints in the magnitude is over a threshold.
Reviewed-by: darcy, shade, coffeys