Fix Java 11 support

$ sbt
> update
> compile
[info] Compiling 71 Scala sources to target/scala-2.11/classes...
[info] 'compiler-interface' not yet compiled for Scala 2.11.11. Compiling...
error: scala.reflect.internal.MissingRequirementError: object java.lang.Object in compiler mirror not found.

Author: ashawley

.travis.yml

@@ -1,9 +1,9 @@
 language: scala
 
 scala:
-  - 2.10.6
-  - 2.11.11
-  - 2.12.2
+  - 2.10.7
+  - 2.11.12
+  - 2.12.8
 
 script:
   - sbt ++$TRAVIS_SCALA_VERSION test:compile
@@ -13,6 +13,7 @@ sudo: false
 
 jdk:
   - oraclejdk8
+  - openjdk11
 
 before_cache:
   - find $HOME/.sbt -name "*.lock" | xargs rm

build.sbt

@@ -4,9 +4,9 @@ name := """github-api"""
 
 version := "0.2.1-SNAPSHOT"
 
-scalaVersion := "2.11.11"
+scalaVersion := "2.12.8"
 
-crossScalaVersions := Seq("2.10.6", scalaVersion.value, "2.12.1")
+crossScalaVersions := Seq("2.10.7", "2.11.12", scalaVersion.value)
 
 description := "The GitHub API from Scala with Async HTTP Client (Netty)"
 

project/build.properties

@@ -1 +1 @@
-sbt.version=0.13.15
+sbt.version=0.13.18