Merge

8231457: Asserts on AIX because os::elapsed_counter() is not monotonic Summary: replace gettimeofday with javaTimeNanos Reviewed-by: dholmes, stuefe

8231287: JMap should do a better job of reporting exception it catches Summary: Retrhow any caught exception, and always print exceptions before exiting Reviewed-by: sspitsyn, phh

8230415: Avoid redundant permission checking in FilePermissionCollection and SocketPermissionCollection Reviewed-by: mullan

8231431: JAOTC issues with JAR path containing spaces Reviewed-by: kvn

8231036: vmTestbase monitoring tests fail after JSR 166 refresh Reviewed-by: martin, dholmes

8231032: ThreadMXBean locking tests fail after JSR 166 refresh Reviewed-by: martin, mchung, dholmes

8230942: Support compressed cores in SA tests Reviewed-by: dholmes, sspitsyn

fix metachunk gtest

do not enlarge chunks faster than chunk alloc strategy would allow

Correct chunk allocation size for standard loaders in class space

Make chunk-in-place-enlargment switchable

8231557: Suppress warnings on non-serializable instance fields in jdk.scripting.nashorn module Reviewed-by: jlaskey

8231037: java/net/InetAddress/ptr/Lookup.java fails intermittently due to reverse lookup failed Summary: The test is updated to verify whether reverse lookup is altogether possible. Reviewed-by: chegar

8231321: compiler/codecache/stress/UnexpectedDeoptimizationAllTest.java failed assertion Reviewed-by: thartmann, eosterlund

8231567: minimal build failed after JDK-8226690 Reviewed-by: shade, coleenp

8231472: Clean up Monitor::_safepoint_check usage to Mutex::_safepoint_check Summary: Change Monitor:: to Mutex:: when allocating a Mutex, and in mutexLocker. Reviewed-by: rehn, dholmes

Fix javadoc

Improve test coverage for RecordingStream::enable(...) and RecordingStream:disable(...)

8227384: C2 compilation fails with "graph should be schedulable" when running with -XX:-EliminateLocks Reviewed-by: thartmann, kvn

Add missing copyright header

Add missing TestUtils class for testing onError

Fix typos

Add tests for onError

8231471: Obsolete -XX:CompilationPolicyChoice Reviewed-by: kvn, dholmes, thartmann

8231405: [Shenandoah] guarantee(d != NULL) failed: Null dominator info Reviewed-by: shade, rkennke

8231504: Update networking tests to avoid implicit dependency on the system proxies Reviewed-by: dfuchs

8228625: [TESTBUG] sun/tools/jhsdb/JShellHeapDumpTest.java fails with RuntimeException 'JShellToolProvider' missing from stdout/stderr Summary: Give jshell process time to fully startup and stablize before requesting heap dump Reviewed-by: sspitsyn, amenkov

8231546: Suppress warnings on non-serializable instance fields in java.prefs module Reviewed-by: rriggs

8231314: java.time serialization warning cleanup Reviewed-by: chegar, naoto, plevart