Merge

8130039: Move the platform-specific [OS]Semaphore code 8130038: Unify the semaphore usage in os_xxx.cpp 8194763: os::signal_lookup is unused Reviewed-by: dholmes, kbarrett

8194762: JTReg failure of "runtime/NMT/PrintNMTStatistics.java" Reviewed-by: dholmes, zgu

8129440: G1 crash during concurrent root region scan Summary: Make concurrent memory accesses to oops on the heap volatile to avoid reloading by the compiler duplicating oop loading code. Reviewed-by: ehelin, eosterlund

8180280: [TESTBUG] Test for JDK-8180048 Summary: Add test at is executed only at higher tiers to allow more time for execution. Reviewed-by: kbarrett, eosterlund

8137099: G1 needs to "upgrade" GC within the safepoint if it can't allocate during that safepoint to avoid OoME Summary: During a minor GC, if memory allocation fails, start a full GC within the same VM operation in the same safepoint. This avoids a race where the GC locker can prevent the full GC from occurring, and a premature OoME. Reviewed-by: ehelin, sjohanss, phh Contributed-by: thomas.schatzl@oracle.com, axel.siebenborn@sap.com

8193352: SA: Test for the clhsdb 'thread' and 'threads' commands Summary: Test for the clhsdb 'thread' and 'threads' commands. Avoids an incorrect 'Couldn't find thread -a' being printed. Reviewed-by: sspitsyn, sballal

6640188: Methods com.cun.attach.VirtualMachine.load... don't throw NullPointerxception Reviewed-by: sspitsyn

8193063: Enabling narrowOop values for RawAccess accesses Reviewed-by: pliden, kbarrett

8194824: Add gc/stress/gclocker/TestGCLockerWithParallel.java to the ProblemList file Reviewed-by: ehelin, kbarrett

8194814: [ppc, s390] A row of minor fixes and cleanups Summary: Fix the data types of pd flags. Reviewed-by: mdoerr

8191985: JDK-8190862 work for arch arm Summary: Fixed Interpreter never refills TLAB Reviewed-by: dsamersoff, aph

8194636: Apply CONCURRENCY_FACTOR to max value in concurrency calculation Reviewed-by: erikj

8187448: 360 doc issues in jdwp-protocol.html Reviewed-by: sspitsyn, amenkov

8194256: AARCH64: SIMD shift instructions are incorrectly encoded Reviewed-by: aph

8192857: LogCompilation could show the intrinsics more like +PrintIntrinsics Summary: Show the intrinsics internal name in the inlining output Reviewed-by: kvn, gtriantafill

Merge

8058259: compute_offset() is confusing for static fields Summary: remove most hard-coded offsets, have compute_offset function that takes a string and creates a TempNewSymbol, have static_field_addr() not add in InstanceMirrorKlass::offset_of_static_fields, ie use offset from find_field Reviewed-by: kbarrett, sspitsyn

8192003: Refactor weak references in StringTable to use the Access API Reviewed-by: pliden, dholmes, coleenp

8194652: VMError::print_native_stack() is missing an os::is_first_C_frame() check Reviewed-by: fparain, gthornbr, stuefe

8191894: Refactor weak references in JvmtiTagHashmap to use the Access API Reviewed-by: sspitsyn, coleenp

8191904: Refactor weak oops in ResolvedMethodTable to use the Access API Reviewed-by: kbarrett, coleenp

8191567: Refactor ciInstanceKlass G1 keep alive barrier to use Access API. Reviewed-by: dholmes, rkennke, tschatzl

8191888: Refactor ClassLoaderData::remove_handle to use the Access API Reviewed-by: tschatzl, pliden, coleenp

Merge

8192927: os::dir_is_empty is incorrect on Windows Summary: Check file names in a directory. It is empty if only the "." and ".." files exist. Use unicode version of windows APIs to handle long path. Reviewed-by: iklam, sspitsyn

8191842: JShell: Inferred type information is lost when assigning types to a \"var\" Summary: For vars, upgrading all anonymous classes to member classes; stripping intersection types from fields before writing. Reviewed-by: rfield

8194284: java/rmi/activation/Activatable/checkRegisterInLog/CheckRegisterInLog.java fails with java.lang.RuntimeException: CheckRegisterInLog got exception timeout 6480000ms out of range Reviewed-by: dholmes, rriggs

Merge

8192004: InspectedFrame.materializeVirtualObjects only updates locals with new objects Reviewed-by: kvn, sspitsyn, phh

8194982: 2 Null pointer dereference defect groups related to ProjNode::is_uncommon_trap_if_pattern() Reviewed-by: kvn

8194991: Null pointer dereference caused by c2v_getNextStackFrame Reviewed-by: kvn