Made minor changes in some patterns such as removed throws clause where not needed, changed incorrect order of arguments in assertEquals

event-aggregator/src/test/java/com/iluwatar/event/aggregator/KingJoffreyTest.java

@@ -76,7 +76,7 @@ public class KingJoffreyTest {
   private class InMemoryAppender extends AppenderBase<ILoggingEvent> {
     private List<ILoggingEvent> log = new LinkedList<>();
 
-    public InMemoryAppender(Class clazz) {
+    public InMemoryAppender(Class<?> clazz) {
       ((Logger) LoggerFactory.getLogger(clazz)).addAppender(this);
       start();
     }

event-aggregator/src/test/java/com/iluwatar/event/aggregator/WeekdayTest.java

@@ -35,7 +35,7 @@ import static org.junit.jupiter.api.Assertions.assertNotNull;
 public class WeekdayTest {
 
   @Test
-  public void testToString() throws Exception {
+  public void testToString() {
     for (final Weekday weekday : Weekday.values()) {
       final String toString = weekday.toString();
       assertNotNull(toString);