chore: Only verify Jdk 9 classes on jdk 11.

.github/workflows/jdk9-classes-check.yml

@@ -0,0 +1,63 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+name: JDK9-Classes-Check
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  generate-doc-check:
+    name: JDK9-Classes-Check
+    runs-on: ubuntu-20.04
+    if: github.repository == 'apache/incubator-pekko'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
+
+      - name: Setup Java 11
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 11
+
+      - name: Cache Coursier cache
+        uses: coursier/cache-action@v6
+
+      - name: Publish
+        # Publish (osgi bundle) not working with JDK 17, issue #31132
+        run: |-
+          sudo apt-get install graphviz
+          sbt -Dsbt.skip.doc=true publishLocal
+
+      - name: Install scala-cli
+        run: |-
+          curl -sS "https://virtuslab.github.io/scala-cli-packages/KEY.gpg" | sudo gpg --dearmor  -o /etc/apt/trusted.gpg.d/scala-cli.gpg 2>/dev/null
+          sudo curl -s --compressed -o /etc/apt/sources.list.d/scala_cli_packages.list "https://virtuslab.github.io/scala-cli-packages/debian/scala_cli_packages.list"
+          sudo apt update
+          sudo apt install scala-cli
+
+      - name: Use Scala-CLI to verify jdk 9 classes
+        run: |-
+          chmod +x .github/workflows/verify-jdk9-classes.sh
+          .github/workflows/verify-jdk9-classes.sh

.github/workflows/nightly-builds.yml

@@ -181,19 +181,15 @@ jobs:
             "+~ ${{ matrix.scalaVersion }} publishLocal publishM2"
 
       - name: Install scala-cli
-        if: ${{ contains('11,17,21', matrix.javaVersion) }}
+        if: ${{ matrix.javaVersion == 11 }}
         run: |-
           curl -sS "https://virtuslab.github.io/scala-cli-packages/KEY.gpg" | sudo gpg --dearmor  -o /etc/apt/trusted.gpg.d/scala-cli.gpg 2>/dev/null
           sudo curl -s --compressed -o /etc/apt/sources.list.d/scala_cli_packages.list "https://virtuslab.github.io/scala-cli-packages/debian/scala_cli_packages.list"
           sudo apt update
           sudo apt install scala-cli
 
       - name: Use Scala-CLI to verify jdk 9 classes
-        if: ${{ contains('11,17,21', matrix.javaVersion) }}
+        if: ${{ matrix.javaVersion == 11 }}
         run: |-
-          scala-cli --version
-          echo "Starting verification with Scala-CLI"
-          scala-cli stream/target/scala-cli/VerifyJDK9Classes.sc && echo "Verification successful" || (
-          echo "Error when VerifyJDK9Classes"
-          exit 1
-          )
+          chmod +x .github/workflows/verify-jdk9-classes.sh
+          .github/workflows/verify-jdk9-classes.sh

.github/workflows/verify-jdk9-classes.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+echo "Checking Scala CLI version..."
+scala-cli --version
+
+echo "Starting verification with Scala-CLI..."
+
+for file in stream/target/scala-cli/*.sc; do
+  echo "Starting verification for with file: $file."
+  if scala-cli "$file" ; then
+    echo "Verification successful for $file."
+  else
+    echo "Error when verifying $file."
+    exit 1
+  fi
+done
+
+echo "All verifications successful."

project/VerifyJDK9Classes.scala

@@ -22,24 +22,23 @@ object VerifyJDK9Classes {
   lazy val settings: Seq[Setting[_]] = inConfig(Compile) {
     Seq {
       sourceGenerators += {
-        generateAndWriteScalaCLIScript(
-          target,
-          _ / "scala-cli" / "VerifyJDK9Classes.sc")
+        generateAndWriteScalaCLIScript(target)
       }
     }
   }
 
-  def generateAndWriteScalaCLIScript(dir: SettingKey[File], locate: File => File): Def.Initialize[Task[Seq[sbt.File]]] =
+  def generateAndWriteScalaCLIScript(dir: SettingKey[File]): Def.Initialize[Task[Seq[sbt.File]]] =
     Def.task[Seq[File]] {
-      val script = generateScalaCLIScript(version.value)
-      val file = locate(dir.value)
+      val binaryVersion = scalaBinaryVersion.value
+      val script = generateScalaCLIScript(version.value, binaryVersion)
+      val file = dir.value / "scala-cli" / s"VerifyJDK9Classes-${binaryVersion}.sc"
       val content = script.stripMargin.format(version.value)
       if (!file.exists || IO.read(file) != content) IO.write(file, content)
       // the generated file is not used.
       Nil
     }
 
-  private def generateScalaCLIScript(version: String): String =
+  private def generateScalaCLIScript(version: String, scalaBinaryVersion: String): String =
     s"""
       |/*
       | * Licensed to the Apache Software Foundation (ASF) under one or more
@@ -57,9 +56,8 @@ object VerifyJDK9Classes {
       | * See the License for the specific language governing permissions and
       | * limitations under the License.
       | */
-      |//> using scala 2.13
+      |//> using scala ${scalaBinaryVersion}
       |//> using dep "org.apache.pekko::pekko-stream:${version}"
-      |////> using jvm 11
       |object VerifyJDK9Classes {
       |  def main(args: Array[String]): Unit = {
       |    import org.apache.pekko.actor.ActorSystem