Add whitespace after copyright header

Add an additional lines after the copyright header and before the
`package` declaration. This aligns with the style used by Spring
Framework.

Issue gh-8945

crypto/src/main/java/org/springframework/security/crypto/argon2/Argon2EncodingUtils.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.argon2;
 
 import java.util.Base64;

crypto/src/main/java/org/springframework/security/crypto/bcrypt/BCrypt.java

@@ -11,6 +11,7 @@
 // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 // ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 // OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
 package org.springframework.security.crypto.bcrypt;
 
 import java.nio.charset.StandardCharsets;

crypto/src/main/java/org/springframework/security/crypto/bcrypt/BCryptPasswordEncoder.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.bcrypt;
 
 import java.security.SecureRandom;

crypto/src/main/java/org/springframework/security/crypto/codec/Base64.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.codec;
 
 /**

crypto/src/main/java/org/springframework/security/crypto/codec/Hex.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.codec;
 
 /**

crypto/src/main/java/org/springframework/security/crypto/codec/Utf8.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.codec;
 
 import java.nio.ByteBuffer;

crypto/src/main/java/org/springframework/security/crypto/codec/package-info.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 /**
  * Internal codec classes. Only intended for use within the framework.
  */

crypto/src/main/java/org/springframework/security/crypto/encrypt/AesBytesEncryptor.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import java.security.spec.AlgorithmParameterSpec;

crypto/src/main/java/org/springframework/security/crypto/encrypt/BouncyCastleAesBytesEncryptor.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import org.bouncycastle.crypto.PBEParametersGenerator;

crypto/src/main/java/org/springframework/security/crypto/encrypt/BouncyCastleAesCbcBytesEncryptor.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import org.bouncycastle.crypto.BufferedBlockCipher;

crypto/src/main/java/org/springframework/security/crypto/encrypt/BouncyCastleAesGcmBytesEncryptor.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import org.bouncycastle.crypto.InvalidCipherTextException;

crypto/src/main/java/org/springframework/security/crypto/encrypt/BytesEncryptor.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 /**

crypto/src/main/java/org/springframework/security/crypto/encrypt/CipherUtils.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import java.security.InvalidAlgorithmParameterException;

crypto/src/main/java/org/springframework/security/crypto/encrypt/Encryptors.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import org.springframework.security.crypto.encrypt.AesBytesEncryptor.CipherAlgorithm;

crypto/src/main/java/org/springframework/security/crypto/encrypt/HexEncodingTextEncryptor.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import org.springframework.security.crypto.codec.Hex;

crypto/src/main/java/org/springframework/security/crypto/encrypt/TextEncryptor.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 /**

crypto/src/main/java/org/springframework/security/crypto/keygen/Base64StringKeyGenerator.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.keygen;
 
 import java.util.Base64;

crypto/src/main/java/org/springframework/security/crypto/keygen/BytesKeyGenerator.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.keygen;
 
 /**

crypto/src/main/java/org/springframework/security/crypto/keygen/HexEncodingStringKeyGenerator.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.keygen;
 
 import org.springframework.security.crypto.codec.Hex;

crypto/src/main/java/org/springframework/security/crypto/keygen/KeyGenerators.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.keygen;
 
 import java.security.SecureRandom;

crypto/src/main/java/org/springframework/security/crypto/keygen/SecureRandomBytesKeyGenerator.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.keygen;
 
 import java.security.SecureRandom;

crypto/src/main/java/org/springframework/security/crypto/keygen/SharedKeyGenerator.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.keygen;
 
 /**

crypto/src/main/java/org/springframework/security/crypto/keygen/StringKeyGenerator.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.keygen;
 
 /**

crypto/src/main/java/org/springframework/security/crypto/password/AbstractPasswordEncoder.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import java.security.MessageDigest;

crypto/src/main/java/org/springframework/security/crypto/password/Digester.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import java.security.MessageDigest;

crypto/src/main/java/org/springframework/security/crypto/password/Md4.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 /**

crypto/src/main/java/org/springframework/security/crypto/password/Md4PasswordEncoder.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import java.util.Base64;

crypto/src/main/java/org/springframework/security/crypto/password/MessageDigestPasswordEncoder.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import java.security.MessageDigest;

crypto/src/main/java/org/springframework/security/crypto/password/NoOpPasswordEncoder.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 /**

crypto/src/main/java/org/springframework/security/crypto/password/PasswordEncoder.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 /**

crypto/src/main/java/org/springframework/security/crypto/password/PasswordEncoderUtils.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import java.security.MessageDigest;

crypto/src/main/java/org/springframework/security/crypto/password/Pbkdf2PasswordEncoder.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import java.security.GeneralSecurityException;

crypto/src/main/java/org/springframework/security/crypto/password/StandardPasswordEncoder.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import java.security.MessageDigest;

crypto/src/main/java/org/springframework/security/crypto/scrypt/SCryptPasswordEncoder.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.scrypt;
 
 import java.security.MessageDigest;

crypto/src/main/java/org/springframework/security/crypto/util/EncodingUtils.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.util;
 
 /**

crypto/src/test/java/org/springframework/security/crypto/argon2/Argon2EncodingUtilsTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.argon2;
 
 import java.util.Base64;

crypto/src/test/java/org/springframework/security/crypto/argon2/Argon2PasswordEncoderTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.argon2;
 
 import java.lang.reflect.Field;

crypto/src/test/java/org/springframework/security/crypto/bcrypt/BCryptPasswordEncoderTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.bcrypt;
 
 import java.security.SecureRandom;

crypto/src/test/java/org/springframework/security/crypto/codec/Base64Tests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.codec;
 
 import org.junit.Test;

crypto/src/test/java/org/springframework/security/crypto/codec/HexTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.codec;
 
 import org.junit.Rule;

crypto/src/test/java/org/springframework/security/crypto/codec/Utf8Tests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.codec;
 
 import java.util.Arrays;

crypto/src/test/java/org/springframework/security/crypto/encrypt/BouncyCastleAesBytesEncryptorEquivalencyTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import java.security.SecureRandom;

crypto/src/test/java/org/springframework/security/crypto/encrypt/BouncyCastleAesBytesEncryptorTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import java.security.SecureRandom;

crypto/src/test/java/org/springframework/security/crypto/encrypt/CryptoAssumptions.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import java.security.NoSuchAlgorithmException;

crypto/src/test/java/org/springframework/security/crypto/encrypt/EncryptorsTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.encrypt;
 
 import org.junit.Test;

crypto/src/test/java/org/springframework/security/crypto/keygen/KeyGeneratorsTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.keygen;
 
 import java.util.Arrays;

crypto/src/test/java/org/springframework/security/crypto/password/DigesterTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import org.junit.Test;

crypto/src/test/java/org/springframework/security/crypto/password/PasswordEncoderUtilsTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import org.junit.Test;

crypto/src/test/java/org/springframework/security/crypto/password/Pbkdf2PasswordEncoderTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import java.util.Arrays;

crypto/src/test/java/org/springframework/security/crypto/password/StandardPasswordEncoderTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.password;
 
 import org.junit.Test;

crypto/src/test/java/org/springframework/security/crypto/scrypt/SCryptPasswordEncoderTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.scrypt;
 
 import org.junit.Test;

crypto/src/test/java/org/springframework/security/crypto/util/EncodingUtilsTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.crypto.util;
 
 import java.util.Arrays;