Reviewed-by: tschatzl, stefank, jmasa

Reviewed-by: kvn, iveresov

Reviewed-by: jcoomes

Summary: check fr.sender_sp() in java thread instead of os::is_first_C_frame(&fr).
Reviewed-by: twisti, coleenp

Summary: added missing check for loop padding case.
Reviewed-by: kvn, jrose

Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set.
Reviewed-by: acorn, kvn
Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com

Reviewed-by: roland, sla, dholmes

8027257: [TESTBUG] compiler/ciReplay/TestVM.sh : Error: Could not find or load main class negative_test
Reviewed-by: roland, kvn

8027124: [TESTBUG] NonTieredLevelsTest: java.lang.RuntimeException: private TestCase$Helper(java.lang.Object) must be osr_compiled
Reviewed-by: kvn, roland

8025644: java/util/stream/test/org/openjdk/tests/java/util/stream/ToArrayOpTest.java fails with TestData$OfRef): failure java.lang.AssertionError: expected [true] but found [false]
Summary: In GraphKit::gen_checkcast() provide only exact superklass to GraphKit::maybe_cast_profiled_receiver()
Reviewed-by: kvn, roland

Summary: cleaned up warnings in solaris specific os code.
Reviewed-by: coleenp, fparain, dcubed
Contributed-by: gerald.thornbrugh@oracle.com

Reviewed-by: dcubed, mgronlun

Summary: Consolidated C2 x86 locking code in one place in macroAssembler_x86.cpp.
Reviewed-by: roland

Summary: Remove search in system dictionary and hacks, replace with verifying in CLD::_klasses list.
Reviewed-by: dcubed, acorn

Reviewed-by: mgerdin, jmasa
Contributed-by: matthias.baesken@sap.com

Summary: Moved test code inside INCLUDE_ALL_GCS
Reviewed-by: stefank, ehelin

Summary: Move redo of ParkEvent.unpark() after JVMTI_EVENT_MONITOR_WAITED event handler is called.
Reviewed-by: rdurbin, acorn, sspitsyn, dsimms, dholmes

Summary: Revert JDK-6976350 because it does not improve PLAB fragmentation. To the contrary, it tends to increase the amount of wasted space with many threads.
Reviewed-by: brutisso

Summary: Move G1ParCopyClosure::copy_to_survivor_space to decrease code size.
Reviewed-by: stefank, jmasa

Summary: Remove the assumption that G1CollectedHeap::in_cset_fast_test needs to check for NULL references. Most of the time this is not required, making the code doing this check multiple times.
Reviewed-by: stefank, mgerdin, jmasa