Use AdoptOpenJDK JDK 8 and 11

.travis.yml

@@ -4,9 +4,7 @@ scala:
   - 2.11.12
   - 2.12.8
   - 2.13.0
-jdk:
-  - openjdk8
-  - openjdk11
+
 env:
   global:
 
@@ -17,43 +15,55 @@ env:
     # SONA_PASS
     - secure: "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"
   matrix:
-    - SCALAJS_VERSION=
-    - SCALAJS_VERSION=0.6.28
-    - SCALAJS_VERSION=1.0.0-M8
+    - SCALAJS_VERSION=         ADOPTOPENJDK=8
+    - SCALAJS_VERSION=0.6.28   ADOPTOPENJDK=8
+    - SCALAJS_VERSION=1.0.0-M8 ADOPTOPENJDK=8
+    - SCALAJS_VERSION=         ADOPTOPENJDK=11
+    - SCALAJS_VERSION=0.6.28   ADOPTOPENJDK=11
+    - SCALAJS_VERSION=1.0.0-M8 ADOPTOPENJDK=11
 
 matrix:
 
   include:
 
     # run migration test
-    - jdk: openjdk8
-      scala: 2.12.8
-      env: TEST_SCALAFIX=true
+    - scala: 2.12.8
+      env: TEST_SCALAFIX=true      ADOPTOPENJDK=11
 
     # run binary compatibility test
-    - jdk: openjdk8
-      scala: 2.12.8
-      env: TEST_BINARY_COMPAT=true
+    - scala: 2.12.8
+      env: TEST_BINARY_COMPAT=true ADOPTOPENJDK=11
 
     # run scalafmt
-    - jdk: openjdk8
-      scala: 2.12.8
-      env: TEST_SCALAFMT=true
+    - scala: 2.12.8
+      env: TEST_SCALAFMT=true      ADOPTOPENJDK=11
+
+before_install:
+  # adding $HOME/.sdkman to cache would create an empty directory, which interferes with the initial installation
+  - "[[ -d $HOME/.sdkman/bin/ ]] || rm -rf $HOME/.sdkman/"
+  - curl -sL https://get.sdkman.io | bash
+  - echo sdkman_auto_answer=true > $HOME/.sdkman/etc/config
+  - source "$HOME/.sdkman/bin/sdkman-init.sh"
+
+install:
+  - sdk install java $(sdk list java | grep -o "$ADOPTOPENJDK\.[0-9\.]*hs-adpt" | head -1)
+  - unset JAVA_HOME
+  - java -Xmx32m -version
+  - javac -J-Xmx32m -version
 
 before_script:
   - admin/checkCLA.sh
 
-script:
-  - java -version
-  - sbt ci
+script: sbt ci
 
 cache:
   directories:
-  - "$HOME/.sbt/preloaded"
-  - "$HOME/.sbt/1.0/dependency"
-  - "$HOME/.sbt/boot/scala*"
-  - "$HOME/.sbt/launchers"
-  - "$HOME/.ivy2/cache"
+    - "$HOME/.sbt/preloaded"
+    - "$HOME/.sbt/1.0/dependency"
+    - "$HOME/.sbt/boot/scala*"
+    - "$HOME/.sbt/launchers"
+    - "$HOME/.ivy2/cache"
+    - "$HOME/.sdkman"
 
 before_cache:
 - du -h -d 1 $HOME/.ivy2/cache