8202884: SA: Attach/detach might fail on Linux if debugee application create/destroy threads during attaching
Summary: While doing a ptrace attach, do not attach to threads which are in the process of exiting or are zombies -- skip these threads.
Reviewed-by: jcbeyler, ysuenaga

Reviewed-by: goetz, mdoerr
Contributed-by: NKazunori Ogata <ogatak@jp.ibm.com>

Summary: Change copyright date from 2017 to 2018.
Reviewed-by: andrew

Reviewed-by: sla, kbarrett, gziemski

Summary: implement os::set_native_thread_name() on windows, linux
Reviewed-by: sla, ctornqvi, simonis
Contributed-by: thomas.stuefe@sap.com

Reviewed-by: phh

Reviewed-by: jbachorik

Summary: Compile with -O3 and relevant C flags as for fdlibm.
Reviewed-by: andrew

Summary: Add hotspot/test/runtime/jni directory with two tests for 8176100
Reviewed-by: kbarrett, coleenp, tschatzl

Summary: Add tag bit to all JNI weak handles
Reviewed-by: kbarrett, coleenp, tschatzl

Reviewed-by: dholmes

Reviewed-by: stuefe, tschatzl

Reviewed-by: goetz, mdoerr
Contributed-by: NKazunori Ogata <ogatak@jp.ibm.com>

Summary: Speed up ParNew collections by pruning the list of scavengable nmethods.
Reviewed-by: jmasa, tonyp, twisti

Reviewed-by: shade, roland

Reviewed-by: tbell, asaha

Reviewed-by: erikj, dholmes

Summary: Remove Linux kernel version check as very unlikely a kernel older than 2.4 will be used.
Reviewed-by: erikj

8180904: Hotspot tests running with -agentvm failing due to classpath
Summary: Add -cp System.getProperty("java.class.path") to ProcessBuilder arguments.
Reviewed-by: sla, gtriantafill

Reviewed-by: aph, mdoerr