Add nullability annotations to tests in module/spring-boot-data-redis-test

See gh-47263

module/spring-boot-data-redis-test/build.gradle

@@ -48,3 +48,11 @@ dependencies {
 
 	testRuntimeOnly("ch.qos.logback:logback-classic")
 }
+
+tasks.named("compileTestJava") {
+	options.nullability.checking = "tests"
+}
+
+tasks.named("compileDockerTestJava") {
+	options.nullability.checking = "tests"
+}

module/spring-boot-data-redis-test/src/dockerTest/java/org/springframework/boot/data/redis/test/autoconfigure/PersonHash.java

@@ -16,6 +16,8 @@
 
 package org.springframework.boot.data.redis.test.autoconfigure;
 
+import org.jspecify.annotations.Nullable;
+
 import org.springframework.data.annotation.Id;
 import org.springframework.data.redis.core.RedisHash;
 
@@ -28,23 +30,23 @@ import org.springframework.data.redis.core.RedisHash;
 public class PersonHash {
 
 	@Id
-	private String id;
+	private @Nullable String id;
 
-	private String description;
+	private @Nullable String description;
 
-	public String getId() {
+	public @Nullable String getId() {
 		return this.id;
 	}
 
-	public void setId(String id) {
+	public void setId(@Nullable String id) {
 		this.id = id;
 	}
 
-	public String getDescription() {
+	public @Nullable String getDescription() {
 		return this.description;
 	}
 
-	public void setDescription(String description) {
+	public void setDescription(@Nullable String description) {
 		this.description = description;
 	}