8230505: Replace JVM type comparisons to T_OBJECT and T_ARRAY with call to is_reference_type Summary: Consistently use is_reference_type when comparing type for T_OBJECT or T_ARRAY. Reviewed-by: dlong, coleenp, hseigel Contributed-by: lois.foltan@oracle.com, john.r.rose@oracle.com

8231250: Shenandoah: Traversal GC should keep alive weak load from heap Reviewed-by: rkennke

Test fixes: more logging, typos, fixes to at-run targets

8206125: [windows] cannot pass relative path to --with-boot-jdk Reviewed-by: tbell

8150741: make <module> not equivalent to make <module-dependencies> <module> Reviewed-by: mchung

8231249: Shenandoah: GC retries are too aggressive for tests that expect OOME Reviewed-by: rkennke

8231058: VerifyOops crashes with assert(_offset >= 0) failed: offset for non comment? Summary: Offset method should only be called for comments. Reviewed-by: roland, dholmes

8231293: Shenandoah: Traversal should not revive dead weak roots Reviewed-by: shade

8230857: Avoid reflection in sun.tools.common.ProcessHelper Reviewed-by: sspitsyn, dholmes

8231189: Rename worker_i parameters to worker_id Reviewed-by: kbarrett, sjohanss

8159984: Remove call to ClassLoaderDataGraph::clear_claimed_marks during the initial mark pause Summary: The CLDG is only iterated once during garbage collection, so we do not need to claim CLDs any more. Reviewed-by: sjohanss, kbarrett

8231117: Remove G1EvacuationRootClosures::raw_strong_oops() Reviewed-by: kbarrett, sjohanss

8231275: Remove null check in the beginning of SystemDictionary::load_shared_class() Reviewed-by: ccheung, coleenp

8231125: Improve testing of parallel loading of shared classes by the boot class loader Reviewed-by: ccheung, coleenp, dholmes

clear_artifacts in the correct location

instantiated super klasses