8149488: Incorrect declaration of bitsInByte in regmask.cpp. Summary: Corrected BITS_IN_BYTE_ARRAY_SIZE value as 256 for all bitsInByte usage. Reviewed-by: dlong, mcberg, thartmann, vlivanov

Merge

8153265: [TESTBUG] compiler/whitebox/ForceNMethodSweepTest should not assume asserts are benign Reviewed-by: twisti, ikrylov

8153165: Fix MX tool config script to make the tool work with TESTNG Reviewed-by: dnsimon, twisti

8152907: Update for x86 tan and log10 in the math lib Summary: Optimize Math.tan() and log10() for 64 and 32 bit X86 architecture using Intel LIBM implementation. Reviewed-by: kvn, twisti Contributed-by: shravya.rukmannagari@intel.com

8147844: new method j.l.Runtime.onSpinWait() and the corresponding x86 hotspot instrinsic Summary: adds c1 & c2 x86 intrinsics for j.l.Runtime.onSpinWait() that utilize the PAUSE instruction Reviewed-by: iveresov, kvn Contributed-by: Ivan Krylov <ivan@azul.com>, Yuri Gaevsky <ygaevsky@azul.com>

8132718: Add tests which check that when humongous classloader object becomes unreachable it and all classes that were loaded in it should be collected Reviewed-by: jmasa, dfazunen

8153764: Add auxiliary method that generates class by class prototype to gc testlibrary Reviewed-by: dfazunen, iignatyev

8152949: Jigsaw crash when Klass in _fixup_module_field_list is unloaded Summary: During start up anonymous classes must be kept alive until after their mirror's module field is patched with java.base Reviewed-by: coleenp, hseigel Contributed-by: per.liden@oracle.com, stefan.karlsson@oracle.com

8154752: Cleanup initialization of G1Policy Reviewed-by: ehelin, tschatzl