📍Use lombok, reformat, and optimize the code (#1560)

* Use lombok, reformat, and optimize the code

* Fix merge conflicts and some sonar issues

Co-authored-by: va1m <va1m@email.com>

data-bus/src/test/java/com/iluwatar/databus/DataBusTest.java

@@ -36,7 +36,7 @@ import org.mockito.MockitoAnnotations;
  *
  * @author Paul Campbell (pcampbell@kemitix.net)
  */
-public class DataBusTest {
+class DataBusTest {
 
   @Mock
   private Member member;
@@ -45,12 +45,12 @@ public class DataBusTest {
   private DataType event;
 
   @BeforeEach
-  public void setUp() {
+  void setUp() {
     MockitoAnnotations.initMocks(this);
   }
 
   @Test
-  public void publishedEventIsReceivedBySubscribedMember() {
+  void publishedEventIsReceivedBySubscribedMember() {
     //given
     final var dataBus = DataBus.getInstance();
     dataBus.subscribe(member);
@@ -61,7 +61,7 @@ public class DataBusTest {
   }
 
   @Test
-  public void publishedEventIsNotReceivedByMemberAfterUnsubscribing() {
+  void publishedEventIsNotReceivedByMemberAfterUnsubscribing() {
     //given
     final var dataBus = DataBus.getInstance();
     dataBus.subscribe(member);

data-bus/src/test/java/com/iluwatar/databus/members/MessageCollectorMemberTest.java

@@ -36,10 +36,10 @@ import org.junit.jupiter.api.Test;
  *
  * @author Paul Campbell (pcampbell@kemitix.net)
  */
-public class MessageCollectorMemberTest {
+class MessageCollectorMemberTest {
 
   @Test
-  public void collectMessageFromMessageData() {
+  void collectMessageFromMessageData() {
     //given
     final var message = "message";
     final var messageData = new MessageData(message);
@@ -51,7 +51,7 @@ public class MessageCollectorMemberTest {
   }
 
   @Test
-  public void collectIgnoresMessageFromOtherDataTypes() {
+  void collectIgnoresMessageFromOtherDataTypes() {
     //given
     final var startingData = new StartingData(LocalDateTime.now());
     final var collector = new MessageCollectorMember("collector");

data-bus/src/test/java/com/iluwatar/databus/members/StatusMemberTest.java

@@ -39,10 +39,10 @@ import org.junit.jupiter.api.Test;
  *
  * @author Paul Campbell (pcampbell@kemitix.net)
  */
-public class StatusMemberTest {
+class StatusMemberTest {
 
   @Test
-  public void statusRecordsTheStartTime() {
+  void statusRecordsTheStartTime() {
     //given
     final var startTime = LocalDateTime.of(2017, Month.APRIL, 1, 19, 9);
     final var startingData = new StartingData(startTime);
@@ -54,7 +54,7 @@ public class StatusMemberTest {
   }
 
   @Test
-  public void statusRecordsTheStopTime() {
+  void statusRecordsTheStopTime() {
     //given
     final var stop = LocalDateTime.of(2017, Month.APRIL, 1, 19, 12);
     final var stoppingData = new StoppingData(stop);
@@ -67,7 +67,7 @@ public class StatusMemberTest {
   }
 
   @Test
-  public void statusIgnoresMessageData() {
+  void statusIgnoresMessageData() {
     //given
     final var messageData = new MessageData("message");
     final var statusMember = new StatusMember(1);