8036698: Add trace event for updates to metaspace gc threshold Reviewed-by: stefank, mgerdin

8036696: Add metaspace gc threshold to metaspace summary trace event Reviewed-by: jmasa, stefank, mgerdin

8036673: G1: Abort weak reference processing if mark stack overflows Reviewed-by: brutisso, tschatzl

8036672: G1: alloc_purpose in copy_to_survivor_space() used incorrectly Reviewed-by: brutisso, tschatzl

Merge

Merge

8037407: G1: Remove heapRegionSets.cpp Reviewed-by: tschatzl, pliden

8036860: Pad and cache-align the BiasedMappedArray Summary: Pad and cache-align BiasedMappedArray instances by default to avoid performance variability problems due to false sharing, as instances of this data structures are typically used for performance sensitive code. Reviewed-by: brutisso, stefank

8035330: Remove G1ParScanPartialArrayClosure and G1ParScanHeapEvacClosure Summary: Mentioned closures are actually wrapped methods. This adds confusion to readers, and in this case also increases code size as G1ParScanHeapEvacClosure is part of the oop_oop_iterate() methods. Move them into G1ParScanThreadState as methods. Reviewed-by: stefank

8034868: Extract G1 From Card Cache into separate class Summary: Refactor the From Card Cache into a separate class. Reviewed-by: jmasa