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

samples/boot/hellorsocket/src/integration-test/java/sample/HelloRSocketApplicationITests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.beans.factory.annotation.Autowired;

samples/boot/hellowebflux-method/src/integration-test/java/sample/HelloWebfluxMethodApplicationITests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import java.util.function.Consumer;

samples/boot/hellowebflux-method/src/test/java/sample/HelloWebfluxMethodApplicationTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import static org.springframework.security.test.web.reactive.server.SecurityMockServerConfigurers.mockUser;

samples/boot/hellowebflux/src/integration-test/java/sample/HelloWebfluxApplicationITests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import java.util.function.Consumer;

samples/boot/hellowebflux/src/test/java/sample/HelloWebfluxApplicationTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import static org.springframework.security.test.web.reactive.server.SecurityMockServerConfigurers.mockUser;

samples/boot/hellowebfluxfn/src/integration-test/java/sample/HelloWebfluxFnApplicationITests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import java.util.function.Consumer;

samples/boot/hellowebfluxfn/src/test/java/sample/HelloWebfluxFnApplicationTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import static org.springframework.security.test.web.reactive.server.SecurityMockServerConfigurers.mockUser;

samples/boot/helloworld/src/integration-test/java/org/springframework/security/samples/HelloWorldApplicationTests.java

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

samples/boot/helloworld/src/main/java/org/springframework/security/samples/HelloWorldApplication.java

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

samples/boot/helloworld/src/main/java/org/springframework/security/samples/config/SecurityConfig.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.samples.config;
 
 import org.springframework.context.annotation.Bean;

samples/boot/helloworld/src/main/java/org/springframework/security/samples/web/MainController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.samples.web;
 
 import org.springframework.stereotype.Controller;

samples/boot/insecure/src/integration-test/java/org/springframework/security/samples/InsecureApplicationTests.java

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

samples/boot/insecure/src/main/java/org/springframework/security/samples/InsecureApplication.java

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

samples/boot/insecure/src/main/java/org/springframework/security/samples/web/MainController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.security.samples.web;
 
 import org.springframework.stereotype.Controller;

samples/boot/oauth2authorizationserver/src/main/java/sample/AuthorizationServerConfiguration.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import java.math.BigInteger;

samples/boot/oauth2authorizationserver/src/main/java/sample/OAuth2AuthorizationServerApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2authorizationserver/src/test/java/sample/OAuth2AuthorizationServerApplicationTests.java

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

samples/boot/oauth2login-webflux/src/integration-test/java/sample/OAuth2LoginApplicationTests.java

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

samples/boot/oauth2login-webflux/src/main/java/sample/ReactiveOAuth2LoginApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2login/src/integration-test/java/sample/OAuth2LoginApplicationTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import java.net.URI;

samples/boot/oauth2login/src/main/java/sample/OAuth2LoginApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2login/src/main/java/sample/web/OAuth2LoginController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.web;
 
 import org.springframework.security.core.annotation.AuthenticationPrincipal;

samples/boot/oauth2resourceserver-jwe/src/integration-test/java/sample/OAuth2ResourceServerApplicationITests.java

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

samples/boot/oauth2resourceserver-jwe/src/main/java/sample/OAuth2ResourceServerApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2resourceserver-jwe/src/main/java/sample/OAuth2ResourceServerController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.security.core.annotation.AuthenticationPrincipal;

samples/boot/oauth2resourceserver-jwe/src/main/java/sample/OAuth2ResourceServerSecurityConfiguration.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import java.net.URL;

samples/boot/oauth2resourceserver-multitenancy/src/integration-test/java/sample/OAuth2ResourceServerApplicationITests.java

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

samples/boot/oauth2resourceserver-multitenancy/src/main/java/sample/OAuth2ResourceServerApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2resourceserver-multitenancy/src/main/java/sample/OAuth2ResourceServerController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.security.core.annotation.AuthenticationPrincipal;

samples/boot/oauth2resourceserver-multitenancy/src/main/java/sample/OAuth2ResourceServerSecurityConfiguration.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import javax.servlet.http.HttpServletRequest;

samples/boot/oauth2resourceserver-opaque/src/integration-test/java/sample/OAuth2ResourceServerApplicationITests.java

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

samples/boot/oauth2resourceserver-opaque/src/main/java/sample/OAuth2ResourceServerApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2resourceserver-opaque/src/main/java/sample/OAuth2ResourceServerController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.security.core.annotation.AuthenticationPrincipal;

samples/boot/oauth2resourceserver-opaque/src/main/java/sample/OAuth2ResourceServerSecurityConfiguration.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.beans.factory.annotation.Value;

samples/boot/oauth2resourceserver-opaque/src/test/java/sample/OAuth2ResourceServerControllerTests.java

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

samples/boot/oauth2resourceserver-static/src/integration-test/java/sample/OAuth2ResourceServerApplicationITests.java

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

samples/boot/oauth2resourceserver-static/src/main/java/sample/OAuth2ResourceServerApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2resourceserver-static/src/main/java/sample/OAuth2ResourceServerController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.security.core.annotation.AuthenticationPrincipal;

samples/boot/oauth2resourceserver-static/src/main/java/sample/OAuth2ResourceServerSecurityConfiguration.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import java.security.interfaces.RSAPublicKey;

samples/boot/oauth2resourceserver-webflux/src/main/java/sample/OAuth2ResourceServerController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.security.core.annotation.AuthenticationPrincipal;

samples/boot/oauth2resourceserver-webflux/src/main/java/sample/ServerOAuth2ResourceServerApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2resourceserver/src/integration-test/java/sample/OAuth2ResourceServerApplicationITests.java

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

samples/boot/oauth2resourceserver/src/main/java/sample/OAuth2ResourceServerApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2resourceserver/src/main/java/sample/OAuth2ResourceServerController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.security.core.annotation.AuthenticationPrincipal;

samples/boot/oauth2resourceserver/src/main/java/sample/OAuth2ResourceServerSecurityConfiguration.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.beans.factory.annotation.Value;

samples/boot/oauth2resourceserver/src/test/java/sample/OAuth2ResourceServerControllerTests.java

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

samples/boot/oauth2webclient-webflux/src/main/java/sample/OAuth2WebClientWebFluxApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2webclient-webflux/src/main/java/sample/config/SecurityConfig.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.config;
 
 import org.springframework.context.annotation.Bean;

samples/boot/oauth2webclient-webflux/src/main/java/sample/web/OAuth2WebClientController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.web;
 
 import reactor.core.publisher.Mono;

samples/boot/oauth2webclient-webflux/src/main/java/sample/web/RegisteredOAuth2AuthorizedClientController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.web;
 
 import reactor.core.publisher.Mono;

samples/boot/oauth2webclient/src/main/java/sample/OAuth2WebClientApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/oauth2webclient/src/main/java/sample/config/SecurityConfig.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.config;
 
 import org.springframework.context.annotation.Bean;

samples/boot/oauth2webclient/src/main/java/sample/web/OAuth2WebClientController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.web;
 
 import org.springframework.stereotype.Controller;

samples/boot/oauth2webclient/src/main/java/sample/web/RegisteredOAuth2AuthorizedClientController.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.web;
 
 import org.springframework.security.oauth2.client.OAuth2AuthorizedClient;

samples/boot/saml2login/src/main/java/sample/Saml2LoginApplication.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.boot.SpringApplication;

samples/boot/webflux-form/src/integration-test/java/sample/WebfluxFormApplicationTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.junit.Before;