Merge

8178025: HiDPI with non-integer scale factor - SPANs in HTML are rendered overlapping each other Reviewed-by: serb, ssadetsky

8191802: Upward projection result is A<? extends Number> instead of A<? super Integer> Summary: Code in Types.TypeProjection doesn't match the latest spec text Reviewed-by: vromero

8186087: jar tool fails to create a multi-release jar when validating nested classes Reviewed-by: psandoz

8191981: javac crash when detecting lambda candidates Summary: Ensuring proper positions on the testing AST nodes created by Analyzer. Reviewed-by: mcimadamore

8177956: Add TEST_VM_OPTS as convenience for run-test arguments Reviewed-by: erikj, tbell

8186057: TLS interoperability testing between different Java versions Summary: An interop test for checking the compatibility among different Java versions. Reviewed-by: asmotrak

8185369: Clean up the javadoc stylesheet Reviewed-by: jjg

8182484: Remove 1024-bit default requirement from javadoc of java.security.interfaces.DSAKeyPairGenerator Summary: updated javadoc to remove the text of using 1024 as the default key size Reviewed-by: mullan

8178427: NPE in Infer$CheckUpperBounds Summary: void target-type causes a crash during overload resolution Reviewed-by: vromero

8191173: (cl) Clarify or remove "for delegation" in ClassLoader spec Reviewed-by: alanb, dholmes, martin, mchung

8191891: Update minumum Ant version in Nashorn build.xml Reviewed-by: jlaskey, sundar

8059835: Optimistic splitting doesn't work with let and const Reviewed-by: jlaskey, attila

8133616: compiler error messages for dup single type, single static import switched Summary: When reporting clashing imports, use the (non-)staticness of the original import to generate the error message. Reviewed-by: mcimadamore