chore: Drop JDK 8 (#771)

.github/workflows/h2-test.yml

@@ -20,11 +20,9 @@ jobs:
       matrix:
         include:
           # leaving out some combinations (note that `checks.yml` doesn't run H2 test)
-          - { scalaVersion: "2.13", jdkVersion: "1.8.0",  jvmName: "temurin:1.8.0",  extraOpts: '' }
           # { scalaVersion: "2.13", jdkVersion: "1.11.0", jvmName: "temurin:1.11.0", extraOpts: '-J-XX:+UnlockExperimentalVMOptions -J-XX:+UseJVMCICompiler' }
           - { scalaVersion: "2.13", jdkVersion: "1.17.0", jvmName: "temurin:1.17.0", extraOpts: '' }
 
-          # { scalaVersion: "3.1",  jdkVersion: "1.8.0",  jvmName: "temurin:1.8.0",  extraOpts: '' }
           # { scalaVersion: "3.1",  jdkVersion: "1.11.0", jvmName: "temurin:1.11.0", extraOpts: '-J-XX:+UnlockExperimentalVMOptions -J-XX:+UseJVMCICompiler' }
           # { scalaVersion: "3.1",  jdkVersion: "1.17.0", jvmName: "temurin:1.17.0", extraOpts: '' }
     steps:

.github/workflows/release.yml

@@ -35,10 +35,10 @@ jobs:
       - name: Cache Coursier cache
         uses: coursier/[email protected]
 
-      - name: Set up JDK 8
+      - name: Set up JDK 11
         uses: coursier/[email protected]
         with:
-          jvm: temurin:1.8.0-352
+          jvm: temurin:1.11.0.17
 
       - name: Publish artifacts for all Scala versions
         env:

build.sbt

@@ -94,3 +94,10 @@ TaskKey[Unit]("verifyCodeFmt") := {
 }
 
 addCommandAlias("verifyCodeStyle", "headerCheck; verifyCodeFmt")
+
+val isJdk11orHigher: Boolean = {
+  val result = VersionNumber(sys.props("java.specification.version")).matchesSemVer(SemanticSelector(">=11"))
+  if (!result)
+    throw new IllegalArgumentException("JDK 11 or higher is required")
+  result
+}

project/ProjectAutoPlugin.scala

@@ -46,14 +46,16 @@ object ProjectAutoPlugin extends AutoPlugin {
     Test / fork := false,
     Test / parallelExecution := false,
     Test / logBuffered := true,
+    javacOptions ++= Seq("--release", "11"),
     scalacOptions ++= Seq(
       "-encoding",
       "UTF-8",
       "-unchecked",
       "-Xlog-reflective-calls",
       "-language:higherKinds",
       "-language:implicitConversions",
-      "-target:jvm-1.8"),
+      "-release",
+      "11"),
     Compile / scalacOptions ++= (CrossVersion.partialVersion(scalaVersion.value) match {
       case Some((2, 13)) =>
         disciplineScalacOptions -- Set(

project/project-info.conf

@@ -2,7 +2,7 @@ project-info {
   version: "current"
   scaladoc: "https://doc.akka.io/api/akka-persistence-jdbc/"${project-info.version}"/akka/persistence/jdbc/"
   shared-info {
-    jdk-versions: ["Adopt OpenJDK 8", "Adopt OpenJDK 11"]
+    jdk-versions: ["Eclipse Temurin JDK 11", "Eclipse Temurin JDK 17"]
     snapshots: {
       url: "snapshots.html"
       text: "Snapshots are available"