Can test on Java 21 now and on 17 without --add-exports

Also forking the JVM for tests not necessary anymore

Author: mkurz

.github/workflows/build-test.yml

@@ -39,8 +39,7 @@ jobs:
       - "check-docs"
     uses: playframework/.github/.github/workflows/cmd.yml@v4
     with:
-      # Can't test with Java 21+ currently because of https://github.com/lightbend/ssl-config/issues/367
-      java: 17
+      java: 21, 17
       scala: 3.x, 2.13.x
       cmd: sbt ++$MATRIX_SCALA test
 

project/CommonPlugin.scala

@@ -18,8 +18,6 @@ object CommonPlugin extends AutoPlugin {
         Nil
     },
     doc / javacOptions --= Seq("-Xlint:unchecked", "-Xlint:deprecation"),
-    Test / javaOptions ++= Seq("--add-exports=java.base/sun.security.x509=ALL-UNNAMED"),
-    Test / fork        := true,
     crossScalaVersions := Seq(scala213, scala3),
     scalaVersion       := scala213,
   )