diff --git a/servlet/spring-boot/java/authentication/username-password/compromised-password-checker/src/main/java/org/example/compromisedpasswordchecker/CompromisedPasswordCheckerApplication.java b/servlet/spring-boot/java/authentication/username-password/compromised-password-checker/src/main/java/org/example/compromisedpasswordchecker/CompromisedPasswordCheckerApplication.java
index 1c07afa..3a55de0 100644
--- a/servlet/spring-boot/java/authentication/username-password/compromised-password-checker/src/main/java/org/example/compromisedpasswordchecker/CompromisedPasswordCheckerApplication.java
+++ b/servlet/spring-boot/java/authentication/username-password/compromised-password-checker/src/main/java/org/example/compromisedpasswordchecker/CompromisedPasswordCheckerApplication.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 org.example.compromisedpasswordchecker;
 
 import org.springframework.boot.SpringApplication;
diff --git a/servlet/spring-boot/java/authentication/username-password/compromised-password-checker/src/test/java/org/example/compromisedpasswordchecker/CompromisedPasswordCheckerApplicationTests.java b/servlet/spring-boot/java/authentication/username-password/compromised-password-checker/src/test/java/org/example/compromisedpasswordchecker/CompromisedPasswordCheckerApplicationTests.java
index 27ea64f..e13a4ab 100644
--- a/servlet/spring-boot/java/authentication/username-password/compromised-password-checker/src/test/java/org/example/compromisedpasswordchecker/CompromisedPasswordCheckerApplicationTests.java
+++ b/servlet/spring-boot/java/authentication/username-password/compromised-password-checker/src/test/java/org/example/compromisedpasswordchecker/CompromisedPasswordCheckerApplicationTests.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 org.example.compromisedpasswordchecker;
 
 import org.junit.jupiter.api.Test;