Minor refactorings and code style changes. 1) Removed several use of raw types 2) Removed unnecessary throws clauses 3) Used lambda expressions wherever applicable 4) Used apt assertion methods for readability 5) Use of try with resources wherever applicable 6) Corrected incorrect order of assertXXX arguments

front-controller/src/main/java/com/iluwatar/front/controller/FrontController.java

@@ -36,7 +36,7 @@ public class FrontController {
   }
 
   private Command getCommand(String request) {
-    Class commandClass = getCommandClass(request);
+    Class<?> commandClass = getCommandClass(request);
     try {
       return (Command) commandClass.newInstance();
     } catch (Exception e) {
@@ -44,8 +44,8 @@ public class FrontController {
     }
   }
 
-  private static Class getCommandClass(String request) {
-    Class result;
+  private static Class<?> getCommandClass(String request) {
+    Class<?> result;
     try {
       result = Class.forName("com.iluwatar.front.controller." + request + "Command");
     } catch (ClassNotFoundException e) {

front-controller/src/test/java/com/iluwatar/front/controller/ApplicationExceptionTest.java

@@ -34,7 +34,7 @@ import static org.junit.jupiter.api.Assertions.assertSame;
 public class ApplicationExceptionTest {
 
   @Test
-  public void testCause() throws Exception {
+  public void testCause() {
     final Exception cause = new Exception();
     assertSame(cause, new ApplicationException(cause).getCause());
   }