[asm-cherry-pick] [move to start] Use JDK8 to build

Author: retronym

.travis.yml

@@ -11,13 +11,7 @@ env:
 
 script: admin/build.sh
 
-# https://github.com/travis-ci/travis-ci/issues/8199#issuecomment-327246053
-addons:
-  apt:
-    packages:
-      - openjdk-6-jdk
-
-jdk: openjdk6
+jdk: openjdk8
 
 notifications:
   email: [email protected]

build.sbt

@@ -25,9 +25,9 @@ git.useGitDescribe := true
 scalaVersionsByJvm in ThisBuild := {
   val vs = List("2.11.11")
   Map(
-    6 -> vs.map(_ -> true),
+    6 -> vs.map(_ -> false),
     7 -> vs.map(_ -> false),
-    8 -> vs.map(_ -> false),
+    8 -> vs.map(_ -> true),
     9 -> vs.map(_ -> false))
 }