Checkstyle and jdk11 fix with spock

tests/samples-messaging-integration/src/main/java/com/example/BookDeleted.java

@@ -22,10 +22,12 @@ import com.fasterxml.jackson.annotation.JsonCreator;
 
 @SuppressWarnings("serial")
 public class BookDeleted implements Serializable {
+
 	public final String bookName;
 
 	@JsonCreator(mode = JsonCreator.Mode.PROPERTIES)
 	public BookDeleted(String bookName) {
 		this.bookName = bookName;
 	}
+
 }

tests/samples-messaging-integration/src/main/java/com/example/BookListener.java

@@ -48,7 +48,8 @@ public class BookListener {
 	 * upon receiving message on the output messageFrom
 	 */
 	public void bookDeleted(BookDeleted bookDeleted) {
-		log.info("Deleting book [ "+ bookDeleted + "]");
+		log.info("Deleting book [ " + bookDeleted + "]");
 		this.bookSuccessfullyDeleted.set(true);
 	}
+
 }

tests/samples-messaging-integration/src/main/java/com/example/BookReturned.java

@@ -22,10 +22,12 @@ import com.fasterxml.jackson.annotation.JsonCreator;
 
 @SuppressWarnings("serial")
 public class BookReturned implements Serializable {
+
 	public final String bookName;
 
 	@JsonCreator(mode = JsonCreator.Mode.PROPERTIES)
 	BookReturned(String bookName) {
 		this.bookName = bookName;
 	}
+
 }

tests/samples-messaging-integration/src/main/java/com/example/BookService.java

@@ -36,7 +36,7 @@ public class BookService {
 	 * a possibility to "trigger" sending of a message to the given messageFrom server
 	 * side: will run the method and await upon receiving message on the output
 	 * messageFrom
-	 * 
+	 *
 	 * Method triggers sending a message to a source
 	 */
 	public void returnBook(BookReturned bookReturned) {
@@ -44,4 +44,5 @@ public class BookService {
 		this.outputChannel.send(MessageBuilder.withPayload(bookReturned)
 				.setHeader("BOOK-NAME", bookReturned.bookName).build());
 	}
+
 }

tests/samples-messaging-integration/src/main/java/com/example/IntegrationMessagingApplication.java

@@ -27,4 +27,5 @@ public class IntegrationMessagingApplication {
 	public static void main(String[] args) {
 		SpringApplication.run(IntegrationMessagingApplication.class, args);
 	}
+
 }