Polish imports

spring-security-kerberos-core/src/main/java/org/springframework/security/kerberos/authentication/JaasSubjectHolder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2015 the original author or authors.
+ * Copyright 2009-2023 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.
@@ -15,12 +15,13 @@
  */
 package org.springframework.security.kerberos.authentication;
 
-import org.springframework.security.kerberos.authentication.sun.SunJaasKerberosClient;
-
-import javax.security.auth.Subject;
 import java.util.HashMap;
 import java.util.Map;
 
+import javax.security.auth.Subject;
+
+import org.springframework.security.kerberos.authentication.sun.SunJaasKerberosClient;
+
 /**
  * <p>Holds the Subject of the currently authenticated user, since this
  * Jaas object also has the credentials, and permits creating new

spring-security-kerberos-core/src/main/java/org/springframework/security/kerberos/authentication/KerberosAuthentication.java

@@ -1,3 +1,18 @@
+/*
+ * Copyright 2023 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.kerberos.authentication;
 
 public interface KerberosAuthentication {

spring-security-kerberos-core/src/main/java/org/springframework/security/kerberos/authentication/KerberosMultiTier.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2015 the original author or authors.
+ * Copyright 2009-2023 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.
@@ -15,12 +15,19 @@
  */
 package org.springframework.security.kerberos.authentication;
 
-import org.ietf.jgss.*;
-import org.springframework.security.authentication.BadCredentialsException;
-import org.springframework.security.core.Authentication;
+import java.security.PrivilegedAction;
 
 import javax.security.auth.Subject;
-import java.security.PrivilegedAction;
+
+import org.ietf.jgss.GSSContext;
+import org.ietf.jgss.GSSCredential;
+import org.ietf.jgss.GSSException;
+import org.ietf.jgss.GSSManager;
+import org.ietf.jgss.GSSName;
+import org.ietf.jgss.Oid;
+
+import org.springframework.security.authentication.BadCredentialsException;
+import org.springframework.security.core.Authentication;
 
 /**
  * <p>Allows creating tickets against other service principals storing the

spring-security-kerberos-core/src/main/java/org/springframework/security/kerberos/authentication/KerberosServiceAuthenticationProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2015 the original author or authors.
+ * Copyright 2009-2023 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.
@@ -17,6 +17,7 @@ package org.springframework.security.kerberos.authentication;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.security.authentication.AccountStatusUserDetailsChecker;
 import org.springframework.security.authentication.AuthenticationProvider;

spring-security-kerberos-core/src/main/java/org/springframework/security/kerberos/authentication/KerberosServiceRequestToken.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2015 the original author or authors.
+ * Copyright 2009-2023 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.
@@ -25,6 +25,7 @@ import javax.security.auth.Subject;
 
 import org.ietf.jgss.GSSContext;
 import org.ietf.jgss.MessageProp;
+
 import org.springframework.security.authentication.AbstractAuthenticationToken;
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.userdetails.UserDetails;

spring-security-kerberos-core/src/main/java/org/springframework/security/kerberos/authentication/KerberosUsernamePasswordAuthenticationToken.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2015 the original author or authors.
+ * Copyright 2009-2023 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.
@@ -15,11 +15,11 @@
  */
 package org.springframework.security.kerberos.authentication;
 
+import java.util.Collection;
+
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.core.GrantedAuthority;
 
-import java.util.Collection;
-
 /**
  * <p>Holds the Username/Password as well as the JAAS Subject allowing
  * multi-tier authentications using Kerberos.</p>

spring-security-kerberos-core/src/main/java/org/springframework/security/kerberos/authentication/sun/JaasUtil.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2015 the original author or authors.
+ * Copyright 2009-2023 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.
@@ -15,10 +15,11 @@
  */
 package org.springframework.security.kerberos.authentication.sun;
 
-import javax.security.auth.Subject;
 import java.security.Principal;
 import java.util.HashSet;
 
+import javax.security.auth.Subject;
+
 /**
  * JAAS utility functions.
  * @author Bogdan Mustiata

spring-security-kerberos-core/src/main/java/org/springframework/security/kerberos/authentication/sun/SunJaasKerberosClient.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2015 the original author or authors.
+ * Copyright 2009-2023 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.
@@ -31,9 +31,10 @@ import javax.security.auth.login.LoginException;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+
 import org.springframework.security.authentication.BadCredentialsException;
-import org.springframework.security.kerberos.authentication.KerberosClient;
 import org.springframework.security.kerberos.authentication.JaasSubjectHolder;
+import org.springframework.security.kerberos.authentication.KerberosClient;
 
 /**
  * Implementation of {@link KerberosClient} which uses the SUN JAAS

spring-security-kerberos-core/src/main/java/org/springframework/security/kerberos/authentication/sun/SunJaasKerberosTicketValidator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2015 the original author or authors.
+ * Copyright 2009-2023 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.
@@ -15,14 +15,27 @@
  */
 package org.springframework.security.kerberos.authentication.sun;
 
+import java.security.Principal;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.security.auth.Subject;
+import javax.security.auth.kerberos.KerberosPrincipal;
+import javax.security.auth.login.AppConfigurationEntry;
+import javax.security.auth.login.Configuration;
+import javax.security.auth.login.LoginContext;
+
 import com.sun.security.jgss.GSSUtil;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.ietf.jgss.GSSContext;
 import org.ietf.jgss.GSSCredential;
-import org.ietf.jgss.GSSException;
 import org.ietf.jgss.GSSManager;
 import org.ietf.jgss.GSSName;
+
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.core.io.Resource;
@@ -32,18 +45,6 @@ import org.springframework.security.kerberos.authentication.KerberosTicketValida
 import org.springframework.security.kerberos.authentication.KerberosTicketValidator;
 import org.springframework.util.Assert;
 
-import javax.security.auth.Subject;
-import javax.security.auth.kerberos.KerberosPrincipal;
-import javax.security.auth.login.AppConfigurationEntry;
-import javax.security.auth.login.Configuration;
-import javax.security.auth.login.LoginContext;
-import java.security.Principal;
-import java.security.PrivilegedActionException;
-import java.security.PrivilegedExceptionAction;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Set;
-
 /**
  * Implementation of {@link KerberosTicketValidator} which uses the SUN JAAS
  * login module, which is included in the SUN JRE, it will not work with an IBM JRE.