Summary: Some parts of the G1 heap can only be walked during a safepoint. Skip verifying these parts of the heap when verifying during JVM startup.
Reviewed-by: brutisso, tschatzl

Reviewed-by: mgerdin, stefank

Reviewed-by: jmasa, stefank

Summary: Add regression test for crash seen in 8005875. Test is run with G1 and PGCT=0 and issues "jcmd <pid> Thread.print" against itself. Without the fix for 8005875 the test will crash.
Reviewed-by: brutisso

Summary: Regression test for 8000311. Verifies that PLABStats works with zero parallel GC threads.
Reviewed-by: jmasa, johnc
Contributed-by: NFilipp Zhinkin <filipp.zhinkin@oracle.com>

Reviewed-by: ehelin, jwilhelm, jmasa

Reviewed-by: stefank, mgerdin

Summary: Add case for CYGWIN in .sh files.
Reviewed-by: coleenp, kvn
Contributed-by: pavel.punegov@oracle.com

Summary: Add Darwin like Linux to shell scripts
Reviewed-by: kvn, kamg, dholmes

Summary: Added test that checks humongous object allocation path also check the heap occupancy and initiate a marking cycle when / if needed.
Reviewed-by: brutisso, jwilhelm

Reviewed-by: kvn

Summary: Avoid overcounting when CMS has concurrent mode failure.
Reviewed-by: ysr
Contributed-by: rednaxelafx@gmail.com

Summary: supply optinal flags to realize gc log rotation
Reviewed-by: ysr, jwilhelm

Summary: simple correction in testcase
Reviewed-by: mchung

Summary: Management code enabled for use by a concurrent collector.
Reviewed-by: mchung, ysr

Reviewed-by: iveresov

Reviewed-by: jmasa, iveresov