diff --git a/smoke-test/spring-boot-smoke-test-oauth2-authorization-server/build.gradle b/smoke-test/spring-boot-smoke-test-oauth2-authorization-server/build.gradle
index ad5aac85e4a..e6c750a43b1 100644
--- a/smoke-test/spring-boot-smoke-test-oauth2-authorization-server/build.gradle
+++ b/smoke-test/spring-boot-smoke-test-oauth2-authorization-server/build.gradle
@@ -27,3 +27,7 @@ dependencies {
 	testImplementation(project(":starter:spring-boot-starter-test"))
 	testImplementation("org.apache.httpcomponents.client5:httpclient5")
 }
+
+tasks.named("compileTestJava") {
+	options.nullability.checking = "tests"
+}