From 9be45801469a76efd579011afe531a92a5f89ba0 Mon Sep 17 00:00:00 2001
From: Matt Dziuban <mrdziuban@gmail.com>
Date: Thu, 22 Feb 2024 10:00:03 -0500
Subject: [PATCH] Test on java 21.

---
 .github/workflows/ci.yml | 10 +++++++++-
 build.sbt                |  2 +-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c455a5a..85bfd72 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         scala: [2.13.12, 3.3.1]
-        java: [temurin@8, temurin@11, temurin@17]
+        java: [temurin@8, temurin@11, temurin@17, temurin@21]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
@@ -56,6 +56,14 @@ jobs:
           java-version: 17
           cache: sbt
 
+      - name: Setup Java (temurin@21)
+        if: matrix.java == 'temurin@21'
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+          cache: sbt
+
       - name: Check that workflows are up to date
         run: sbt '++ ${{ matrix.scala }}' githubWorkflowCheck
 
diff --git a/build.sbt b/build.sbt
index 7b361c6..8384653 100644
--- a/build.sbt
+++ b/build.sbt
@@ -6,7 +6,7 @@ lazy val scala3 = "3.3.1"
 ThisBuild / crossScalaVersions := Seq(scala213, scala3)
 
 // GitHub Actions config
-val javaVersions = Seq(8, 11, 17).map(v => JavaSpec.temurin(v.toString))
+val javaVersions = Seq(8, 11, 17, 21).map(v => JavaSpec.temurin(v.toString))
 
 ThisBuild / githubWorkflowJavaVersions := javaVersions
 ThisBuild / githubWorkflowArtifactUpload := false