8223689: Add JFR Thread Sampling Support
8223690: Add JFR BiasedLock Event Support
8223691: Add JFR G1 Region Type Change Event Support
8223692: Add JFR G1 Heap Summary Event Support
Summary: Backport JFR from JDK11, additional fixes
Reviewed-by: neugens, apetushkov
Contributed-by: denghui.ddh@alibaba-inc.com

8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

Summary: On Unix platforms, spawn a 'df' process and skip FileStore check if it hangs
Reviewed-by: alanb, chegar

Summary: Add class CADistrustPolicy and distrust Symantec.
Reviewed-by: weijun

Reviewed-by: sspitsyn

Reviewed-by: michaelm

Reviewed-by: michaelm

Summary: Also reviewed by Chris Ries <chris.ries@oracle.com>
Reviewed-by: alanb, mchung, rriggs

Reviewed-by: mchung, igerasim

Reviewed-by: weijun, igerasim

Reviewed-by: weijun, coffeys
Contributed-by: prasadarao.koppula@oracle.com

Reviewed-by: weijun, coffeys
Contributed-by: prasadarao.koppula@oracle.com

Reviewed-by: mullan

Reviewed-by: mullan

8185628: Backport jdk/test/lib/testlibrary/CompilerUtils.java to jdk8u which is helpful in test development
Summary: Utility class for compiling Java source files
Reviewed-by: coffeys

Reviewed-by: mullan

Reviewed-by: rriggs

Reviewed-by: weijun, igerasim

Reviewed-by: weijun

Reviewed-by: alanb, robm

Reviewed-by: alanb, robm

Reviewed-by: weijun

Reviewed-by: chegar

Reviewed-by: weijun

Reviewed-by: vlivanov

8081775: two lib/testlibrary tests are failing with "Error. failed to clean up files after test" with jtreg 4.1 b12
Reviewed-by: amlu

8081022: java/time/test/java/time/format/TestZoneTextPrinterParser.java fails by timeout on slow device
Summary: Reduce number of iterations to 8 instead of 50;  add RandomFactory to test library
Reviewed-by: naoto

8081775: two lib/testlibrary tests are failing with "Error. failed to clean up files after test" with jtreg 4.1 b12
Reviewed-by: amlu

Summary: Copy ProcessTool.createJavaProcessBuilder functionality from hotspot/test
Reviewed-by: rriggs, sspitsyn, dholmes

8077953: [TEST_BUG] com/sun/management/OperatingSystemMXBean/TestTotalSwap.java Compilation failed after JDK-8077387
Reviewed-by: sla, dholmes

Reviewed-by: psandoz, vlivanov, dfuchs

Reviewed-by: egahlin, dholmes

Reviewed-by: vlivanov, mhaupt

Reviewed-by: vinnie
Contributed-by: NRaghu Nair <raghu.k.nair@oracle.com>

8057707: TEST library enhancement in lib/testlibrary/jsr292/com/oracle/testlibrary/jsr292/Helper.java
Reviewed-by: iignatyev, vlivanov

Reviewed-by: coffeys
Contributed-by: NAlexander Vorobyev <alexander.vorobyev@oracle.com>

Reviewed-by: weijun

Reviewed-by: chegar

Reviewed-by: iveresov, twisti, vlivanov

Reviewed-by: coffeys