8173910: (fs) java/nio/file/FileSystem/Basic.java should conditionally check FileStores Summary: On Unix platforms, spawn a 'df' process and skip FileStore check if it hangs Reviewed-by: alanb

Merge

Merge

Merge

8173846: [AOT] Stubs hang onto intermediate compiler state forever Summary: Stub shouldn't keep alive the graph Reviewed-by: kvn Contributed-by: tom.rodriguez@oracle.com

8173227: [JVMCI] HotSpotJVMCIMetaAccessContext.fromClass is inefficient Reviewed-by: dnsimon

Merge

Merge

8173693: disable post_class_unload() for non JavaThread initiators Reviewed-by: sspitsyn, gthornbr

Merge

8156073: 2-slot LiveStackFrame locals (long and double) are incorrect Reviewed-by: coleenp, mchung

8173373: C1: NPE is thrown instead of LinkageError when accessing inaccessible field on NULL receiver Summary: Deoptimize if receiver null check of unresolved field access fails to throw NoClassDefFoundError instead of NPE. Reviewed-by: vlivanov

8173338: C2: continuous CallSite relinkage eventually disables compilation for a method Reviewed-by: jrose, dlong, kvn

8173404: C2: wrong nmethod dependency can be recorded for CallSite.target Reviewed-by: kvn

8158546: C1 compilation fails with "Constant field loads are folded during parsing" Reviewed-by: kvn

8173584: Add unit test for 8173309 Reviewed-by: kvn