Update license headers and javadocs

ldap/src/main/java/org/springframework/security/ldap/authentication/ad/ActiveDirectoryLdapAuthenticationProvider.java

@@ -202,10 +202,6 @@ protected DirContextOperations doAuthentication(UsernamePasswordAuthenticationTo
 		}
 	}
 
-	/**
-	 * Creates the user authority list from the values of the {@code memberOf} attribute
-	 * obtained from the user's Active Directory entry.
-	 */
 	@Override
 	protected Collection<? extends GrantedAuthority> loadUserAuthorities(DirContextOperations userData, String username,
 			String password) {

ldap/src/main/java/org/springframework/security/ldap/authentication/ad/DefaultActiveDirectoryAuthoritiesPopulator.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.springframework.security.ldap.authentication.ad;
 
 import org.apache.commons.logging.Log;
@@ -13,6 +29,14 @@
 import java.util.Collection;
 import java.util.stream.Collectors;
 
+/**
+ * The default strategy for obtaining user role information from the active directory.
+ * Creates the user authority list from the values of the {@code memberOf} attribute
+ * obtained from the user's Active Directory entry.
+ *
+ * @author Luke Taylor
+ * @author Roman Zabaluev
+ */
 public class DefaultActiveDirectoryAuthoritiesPopulator implements LdapAuthoritiesPopulator {
 
 	protected final Log logger = LogFactory.getLog(getClass());