Fix Checkstyle in AOT Data

servlet/spring-boot/java/aot/data/src/main/java/example/CsrfAdvice.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package example;
 
 import jakarta.servlet.http.HttpServletResponse;

servlet/spring-boot/java/aot/data/src/main/java/example/DataApplication.java

@@ -56,4 +56,4 @@ public class DataApplication {
 		SpringApplication.run(DataApplication.class, args);
 	}
 
-}
+}

servlet/spring-boot/java/aot/data/src/main/java/example/DataRuntimeHintsRegistrar.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package example;
 
 import org.springframework.aot.hint.RuntimeHints;