8186842: Use Java class loaders for creating the CDS archiveReviewed-by: coleenp, jiangli, iklam, mseledtsovContributed-by: calvin.cheung@oracle.com, ioi.lam@oracle.com
8072061: Automatically determine optimal sizes for the CDS regionsSummary: See new C++ class MetaspaceClosure.Reviewed-by: coleenp, jiangli, mseledtsov