hg: jdk/jdk: 2 new changesets

[paul.sandoz at oracle.com]

Changeset: c21740de9431
Author:    psandoz
Date:      2017-12-12 09:33 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/c21740de9431

8171826: Comparator.reverseOrder(c) mishandles singleton comparators
Reviewed-by: rriggs

! src/java.base/share/classes/java/util/Collections.java
! test/jdk/java/util/Comparator/BasicTest.java

Changeset: 739aa297c260
Author:    psandoz
Date:      2017-12-12 09:33 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/739aa297c260

8187254: MethodType allows unvalidated parameter types
Reviewed-by: mchung, jrose

! src/java.base/share/classes/java/lang/invoke/MethodType.java