Set a different jdk went running forked test (fix scala#77)

Author: MasseGuillaume

.travis.yml

@@ -2,11 +2,11 @@ language: scala
 
 scala:
   - 2.11.12
-  - 2.12.6
-  - 2.13.0-M4
+  # - 2.12.6
+  # - 2.13.0-M4
 jdk:
-  - openjdk7
-  - oraclejdk8
+  - openjdk6
+  # - oraclejdk8
 env:
   global:
     # PGP_PASSPHRASE
@@ -15,39 +15,44 @@ env:
     - secure: "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"
     # SONA_PASS
     - secure: "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"
-  matrix:
-    - SCALAJS_VERSION=
-    - SCALAJS_VERSION=0.6.23
-    - SCALAJS_VERSION=1.0.0-M3
+  # matrix:
+  #   - SCALAJS_VERSION=
+  #   - SCALAJS_VERSION=0.6.23
+  #   - SCALAJS_VERSION=1.0.0-M3
 
 matrix:
-  exclude:
-    # > 2.12 requires jdk8
-    - jdk: openjdk7
-      scala: 2.12.6
+  # exclude:
+  #   # > 2.12 requires jdk8
+  #   - jdk: openjdk6
+  #     scala: 2.12.6
 
-    - jdk: openjdk7
-      scala: 2.13.0-M4
+  #   - jdk: openjdk6
+  #     scala: 2.13.0-M4
 
-    # ?
-    - jdk: oraclejdk8
-      scala: 2.11.12
+  #   # ?
+  #   - jdk: oraclejdk8
+  #     scala: 2.11.12
 
-    # 2.13.0-M4 is not available in Scala.js 1.0.0-M3
-    - scala: 2.13.0-M4
-      env: SCALAJS_VERSION=1.0.0-M3
+  #   # 2.13.0-M4 is not available in Scala.js 1.0.0-M3
+  #   - scala: 2.13.0-M4
+  #     env: SCALAJS_VERSION=1.0.0-M3
 
   # run migration test
   include:
     - scala: 2.12.6
       jdk: oraclejdk8
       env: TEST_SCALAFIX=true
+    - addons:
+        apt:
+          packages:
+            - openjdk-6-jdk
+      jdk: openjdk6
 
 # | jdk         |   scala   | scala target | scala target version | scalafix test |
 # | ----------- | --------- | ------------ | -------------------- |---------------|
-# |    openjdk7 | 2.11.12   | jvm          |                      |               |
-# |    openjdk7 | 2.11.12   | js           | 0.6.23               |               |
-# |    openjdk7 | 2.11.12   | js           | 1.0.0-M3             |               |
+# |    openjdk6 | 2.11.12   | jvm          |                      |               |
+# |    openjdk6 | 2.11.12   | js           | 0.6.23               |               |
+# |    openjdk6 | 2.11.12   | js           | 1.0.0-M3             |               |
 # |  oraclejdk8 | 2.12.6    | jvm          |                      |               |
 # |  oraclejdk8 | 2.12.6    | js           | 0.6.23               |               |
 # |  oraclejdk8 | 2.12.6    | js           | 1.0.0-M3             |               |
@@ -57,7 +62,8 @@ matrix:
 
 before_script: ./checkCLA.sh
 script:
-  - java -version
+  - java -version    # always oraclejdk8
+  - echo $JAVA_HOME
   - admin/build.sh
 
 cache:

admin/build.sh

@@ -62,4 +62,4 @@ if [[ "$TRAVIS_TAG" =~ $tagPat ]]; then
   fi
 fi
 
-sbt -Dhttps.protocols=TLSv1.2 -sbt-dir=/home/travis/.sbt ";$crossScalaVersion ;$publishVersion ;$projectPrefix/clean ;$testProjectPrefix/test ;$projectPrefix/publishLocal ;$publishTask"
+sbt -Dhttps.protocols=TLSv1.2 ";$crossScalaVersion ;$publishVersion ;$projectPrefix/clean ;$testProjectPrefix/test ;$projectPrefix/publishLocal ;$publishTask"

build.sbt

@@ -32,7 +32,14 @@ lazy val compat = crossProject(JSPlatform, JVMPlatform)
   )
   .jvmSettings(
     OsgiKeys.exportPackage := Seq(s"scala.collection.compat.*;version=${version.value}"),
-    libraryDependencies += "com.novocode" % "junit-interface" % "0.11" % "test"
+    libraryDependencies += "com.novocode" % "junit-interface" % "0.11" % "test",
+    javaHome := {
+      val oldValue = javaHome.value
+      val isOnCi = sys.env.get("CI").isDefined
+
+      if (isOnCi) Some(file(sys.env("JAVA_HOME")))
+      else oldValue
+    }
   )
   .jsSettings(
     scalacOptions += {

compat/src/test/scala/test/scala/collection/JdkVersionTest.scala

@@ -0,0 +1,25 @@
+package test.scala.collection
+
+import org.junit.Assert._
+import org.junit.Test
+
+class JdkVersionTest {
+
+  @Test
+  def testJavaVersion: Unit = {
+    val isOnCi = sys.env.get("CI").isDefined
+
+    if (isOnCi) {
+      val travisJdkVersion = sys.env("TRAVIS_JDK_VERSION")
+      val jdkVersion = sys.props("java.specification.version")
+
+      if (travisJdkVersion == "openjdk6") {
+        assertEquals(jdkVersion, "1.6")
+      } else if (travisJdkVersion == "oraclejdk8") {
+        assertEquals(jdkVersion, "1.8")
+      } else {
+        throw new Exception(s"Unknown CI jdk version: $travisJdkVersion")
+      }
+    }
+  }
+}