revert java 11 change

Author: pjfanning

.github/workflows/ci.yml

@@ -24,14 +24,22 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         scala: [2.11.12, 2.12.20, 2.13.16, 3.3.5]
-        java: [zulu@11, zulu@17, zulu@21]
+        java: [zulu@8, zulu@11, zulu@17, zulu@21]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
+      - name: Setup Java (zulu@8)
+        if: matrix.java == 'zulu@8'
+        uses: actions/setup-java@v4
+        with:
+          distribution: zulu
+          java-version: 8
+          cache: sbt
+
       - name: Setup Java (zulu@11)
         if: matrix.java == 'zulu@11'
         uses: actions/setup-java@v4
@@ -81,14 +89,22 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         scala: [2.13.16]
-        java: [zulu@11]
+        java: [zulu@8]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
+      - name: Setup Java (zulu@8)
+        if: matrix.java == 'zulu@8'
+        uses: actions/setup-java@v4
+        with:
+          distribution: zulu
+          java-version: 8
+          cache: sbt
+
       - name: Setup Java (zulu@11)
         if: matrix.java == 'zulu@11'
         uses: actions/setup-java@v4

build.sbt

@@ -165,7 +165,7 @@ Compile / resourceGenerators += Def.task {
 Test / parallelExecution := false
 
 ThisBuild / githubWorkflowSbtCommand := "sbt -J-Xmx2G"
-ThisBuild / githubWorkflowJavaVersions := Seq(JavaSpec(Zulu, "11"),
+ThisBuild / githubWorkflowJavaVersions := Seq(JavaSpec(Zulu, "8"), JavaSpec(Zulu, "11"),
   JavaSpec(Zulu, "17"), JavaSpec(Zulu, "21"))
 ThisBuild / githubWorkflowBuild := Seq(WorkflowStep.Sbt(List("test", "mimaReportBinaryIssues")))
 ThisBuild / githubWorkflowTargetBranches := Seq("2.*")