From 6f1e6c36d9ebdd0566a8b039c29424f50c01316e Mon Sep 17 00:00:00 2001
From: Eugene Yokota <eed3si9n@gmail.com>
Date: Wed, 14 Feb 2018 18:49:11 -0500
Subject: [PATCH] cross JVM testing

This continues to use Oracle JDK 8 for building, but adds test jobs using oraclejdk8, oraclejdk9, and oraclejdk10.
---
 .gitignore                      |  2 +-
 .travis.yml                     | 65 ++++++++++++++++++++++++---------
 citest/Hello.scala              |  5 +++
 citest/install-jdk10.sh         | 20 ++++++++++
 citest/project/build.properties |  2 +-
 citest/test.sh                  | 22 +++++++++++
 project/build.properties        |  1 -
 7 files changed, 97 insertions(+), 20 deletions(-)
 create mode 100644 citest/Hello.scala
 create mode 100755 citest/install-jdk10.sh
 create mode 100755 citest/test.sh

diff --git a/.gitignore b/.gitignore
index ebfcd37f5..87178428e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,4 @@ src_managed
 .lib
 /template-project/project/boot
 *~
-
+/citest/freshly-baked/
diff --git a/.travis.yml b/.travis.yml
index 38409a5e0..186b785db 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,22 +1,53 @@
 dist: trusty
-addons:
-  apt:
-    packages:
-    - fakeroot
+
 language: scala
-script:
-  - sbt -Dsbt.build.version=1.0.3 ++$TRAVIS_SCALA_VERSION rpm:packageBin debian:packageBin universal:packageBin
+
+env:
+  global:
+  - SBT_VER=1.1.1
+
+matrix:
+  include:
+    ## build using JDK 8, test using JDK 8
+    - script:
+        - sbt -Dsbt.build.version=$SBT_VER universal:packageBin
+        - cd citest && ./test.sh
+
+    ## build using JDK 8, test using JDK 9
+    - script:
+        - sbt -Dsbt.build.version=$SBT_VER universal:packageBin
+        - jdk_switcher use oraclejdk9
+        - cd citest && ./test.sh
+
+    ## build using JDK 8, test using JDK 10
+    - script:
+        - sbt -Dsbt.build.version=$SBT_VER universal:packageBin
+        - citest/install-jdk10.sh
+        - cd citest && ./test.sh
+
+    - script:
+        - sbt -Dsbt.build.version=$SBT_VER rpm:packageBin debian:packageBin
+      addons:
+        apt:
+          packages:
+            - fakeroot
+            - rpm
+
 scala:
-  - 2.10.3
+  - 2.10.7
+
 jdk:
   - oraclejdk8
-notifications:
-  email:
-    - sbt-dev-bot@googlegroups.com
-before_install:
-  - cat /etc/hosts # optionally check the content *before*
-  - sudo hostname "$(hostname | cut -c1-63)"
-  - sed -e "s/^\\(127\\.0\\.0\\.1.*\\)/\\1 $(hostname | cut -c1-63)/" /etc/hosts | sudo tee /etc/hosts
-  - cat /etc/hosts # optionally check the content *after*
-  - sudo apt-get update -qq
-  - sudo apt-get install -qq rpm
+
+# Undo _JAVA_OPTIONS environment variable
+before_script:
+  - _JAVA_OPTIONS=
+
+cache:
+  directories:
+    - $HOME/.ivy2/cache
+    - $HOME/.sbt/boot
+
+before_cache:
+  - find $HOME/.ivy2 -name "ivydata-*.properties" -delete
+  - find $HOME/.sbt  -name "*.lock"               -delete
diff --git a/citest/Hello.scala b/citest/Hello.scala
new file mode 100644
index 000000000..b6b4d95ba
--- /dev/null
+++ b/citest/Hello.scala
@@ -0,0 +1,5 @@
+package foo
+
+object Hello extends App {
+  println("hello")
+}
diff --git a/citest/install-jdk10.sh b/citest/install-jdk10.sh
new file mode 100755
index 000000000..0693a6890
--- /dev/null
+++ b/citest/install-jdk10.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# copied from https://github.com/junit-team/junit5/blob/master/src/install/install-jdk-10.sh
+
+set -e
+
+JDK_FEATURE=10
+TMP=$(curl -L jdk.java.net/${JDK_FEATURE})              # extract most recent "JDK_BUILD" number from web page source...
+TMP="${TMP#*Most recent build: jdk-${JDK_FEATURE}+}" # remove everything before the number
+TMP="${TMP%%<*}"                                        # remove everything after the number
+JDK_BUILD="$(echo -e "${TMP}" | tr -d '[:space:]')"     # remove all whitespace
+JDK_ARCHIVE=jdk-${JDK_FEATURE}+${JDK_BUILD}_linux-x64_bin.tar.gz
+
+cd ~
+wget http://download.java.net/java/jdk${JDK_FEATURE}/archive/${JDK_BUILD}/BCL/${JDK_ARCHIVE}
+tar -xzf ${JDK_ARCHIVE}
+export JAVA_HOME=~/jdk-${JDK_FEATURE}
+export PATH=${JAVA_HOME}/bin:$PATH
+cd -
+java --version
diff --git a/citest/project/build.properties b/citest/project/build.properties
index 394cb75cf..31334bbd3 100644
--- a/citest/project/build.properties
+++ b/citest/project/build.properties
@@ -1 +1 @@
-sbt.version=1.0.4
+sbt.version=1.1.1
diff --git a/citest/test.sh b/citest/test.sh
new file mode 100755
index 000000000..64d40c80a
--- /dev/null
+++ b/citest/test.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+## https://github.com/travis-ci/travis-ci/issues/8408
+export _JAVA_OPTIONS=
+
+## begin Java switching
+## swtich to JDK 10 if we've downloaded it
+if [ -d ~/jdk-10 ]
+then
+  JAVA_HOME=~/jdk-10
+fi
+## include JAVA_HOME into path
+PATH=${JAVA_HOME}/bin:$PATH
+java -version
+## end of Java switching
+
+mkdir freshly-baked
+unzip -qo ../target/universal/sbt.zip -d ./freshly-baked
+
+SBT_OPTS=-Dfile.encoding=UTF-8
+
+./freshly-baked/sbt/bin/sbt about run
diff --git a/project/build.properties b/project/build.properties
index 3689a86a2..c091b86ca 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1,2 +1 @@
 sbt.version=0.13.16
-