8136679: JFR event for adaptive IHOP Reviewed-by: tbenson, mgerdin, sangheki, ehelin

8136678: Implement adaptive sizing algorithm for IHOP Summary: Add adaptive sizing for IHOP that maximizes throughput (starts marking as late as possible). This functionality is enabled using a new -XX:+G1AdaptiveIHOP switch (default: false). Reviewed-by: mgerdin, jmasa, pliden

8136681: Factor out IHOP calculation from G1CollectorPolicy Summary: Move out existing IHOP value calculation into an implementation of a new interface called G1IHOPControl. Prepare for changes to accomodate adaptive IHOP implementation. Reviewed-by: jmasa, mgerdin, ehelin

Merge

8142495: Move G1ParEvacuateFollowersClosure to header file Reviewed-by: sjohanss, brutisso

Merge

Merge

8143544: Make CMSCollector::is_cms_reachable() non-product Reviewed-by: ysr, tschatzl

Merge

8143587: G1 crashes with humongous object of size that almost fills a heap region Reviewed-by: mgerdin, brutisso

Merge

8142336: Convert the SA agent build to modular build-infra makefiles Reviewed-by: ihse, sla, dsamersoff, twisti

Merge

8143963: improve ClassLoader::trace_class_path to accept an additional outputStream* arg Summary: for fixing a truncation problem on the output from -XX:+TraceClassPaths Reviewed-by: coleenp, jiangli, cjplummer, minqi

Merge