8191678: [TESTBUG] Add keyword headful in java/awt and javax tests. Summary: Also fix some NPE thrown if run headless. Reviewed-by: serb

8190674: sun/security/tools/jarsigner/TimestampCheck.java failed with java.nio.file.NoSuchFileException: ts2.cert Reviewed-by: mullan

8193014: Add "special" tests to run-test to cover odd cases Reviewed-by: erikj

8184683: Add @since and default methods of Compiler Tree API methods Reviewed-by: darcy, jjg

8177290: add copy factory methods for unmodifiable List, Set, Map 8184690: add Collectors for collecting into unmodifiable List, Set, and Map Reviewed-by: alanb, briangoetz, dholmes, jrose, rriggs, scolebourne

8192995: run-test gtest should use all jvm variants, not just "server" Reviewed-by: erikj

8146977: Move the output "Building configuration X (matching Y)" to lower log level Reviewed-by: erikj

8175795: configure should verify that system zlib contains needed functionality Reviewed-by: erikj

8192854: FONTCONFIG_CFLAGS missing from spec.gmk.in Reviewed-by: erikj, prr

8189749: Devise strategy for making source level checks more uniform Summary: Create a 'feature' enum which is responsible for handling source version checks and related diagnostic generation Reviewed-by: jjg, jlahoda

8192961: Remove some double semicolons Reviewed-by: redestad

8191955: AArch64: incorrect prefetch distance causes an internal error Summary: Fixed incorrect prefetch distance on AArch64. Reviewed-by: aph