Initial changes for new metaspace. Only tested for Linux x64.

8230454: [Graal] Add "com/sun/crypto/provider/KeyFactory/TestProviderLeak.java" to Graal problem list. Reviewed-by: dlong

8225653: Provide more information when hitting SIGILL from HaltNode Summary: Add information string for each HaltNode which is printed if hit at runtime. Reviewed-by: vlivanov, thartmann

8207800: always_do_update_barrier is unused Reviewed-by: shade, tschatzl Contributed-by: Evgeny Mandrikov <mandrikov@gmail.com>

8221361: Eliminate two-phase initialization for PtrQueueSet classes Summary: Move allocator and CBL monitor init to constructor. Reviewed-by: tschatzl, shade

8230284: Accounting currency format support does not cope with explicit number system Reviewed-by: rriggs

8230516: invalid html in jdwp-protocol.html Reviewed-by: dtitov, sspitsyn

8212117: Class.forName may return a reference to a loaded but not linked Class Reviewed-by: dholmes, mchung

8230526: jdk.internal.net.http.PlainProxyConnection is never reused by HttpClient Summary: fixed the PlainProxyConnection lookup key. Reviewed-by: chegar

8230723: Remove default constructors from java.lang and java.io Reviewed-by: bpb, rriggs

8177389: Hyphen "-" should be removed in URL class documentation Summary: javadoc of java.net.URL constructor updated to remove an unnecessary hyphen Reviewed-by: dfuchs

8230132: java/net/NetworkInterface/NetworkInterfaceRetrievalTests.java to skip Teredo Tunneling Pseudo-Interface Summary: The test is updated to skip Teredo pseudo interfaces on windows. Reviewed-by: michaelm, vtewari, aefimov Contributed-by: patrick.concannon@oracle.com

8230669: [s390] C1: assert(is_bound() || is_unused()) failed: Label was never bound to a location, but it was used as a jmp target Reviewed-by: phh, xliu

8230708: Hotspot fails to build on linux-sparc with gcc-9 Reviewed-by: dholmes, phh

JavaThread name

8230564: Remove os_ext.hpp Reviewed-by: coleenp, dholmes