Make Play smoke test work on Java 17 (#12464)

smoke-tests/images/play/build.gradle.kts

@@ -6,6 +6,8 @@ plugins {
   id("otel.spotless-conventions")
 
   id("com.google.cloud.tools.jib")
+  // TODO (trask) this plugin doesn't support Play 2.9+, see https://github.com/gradle/playframework/issues/185
+  //  once play 3.1 is released, we can update to https://github.com/orgs/playframework/discussions/12338
   id("org.gradle.playframework") version "0.14"
 }
 
@@ -23,6 +25,10 @@ play {
 
 dependencies {
   implementation("com.typesafe.play:play-guice_$scalaVer:$playVer")
+  // Guice 5.1 is needed for Java 17 support on Play 2.8, see https://github.com/playframework/playframework/releases/tag/2.8.15
+  // TODO (trask) remove these version overrides after updating to Play 2.9
+  implementation("com.google.inject:guice:5.1.0")
+  implementation("com.google.inject.extensions:guice-assistedinject:5.1.0")
   implementation("com.typesafe.play:play-logback_$scalaVer:$playVer")
   implementation("com.typesafe.play:filters-helpers_$scalaVer:$playVer")
 }