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/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;