Fixed checkstyle errors causing build failures.

unit-of-work/pom.xml

@@ -47,6 +47,7 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>
+            <version>5.0.0</version>
             <scope>test</scope>
         </dependency>
         <dependency>

unit-of-work/src/main/java/com/iluwatar/unitofwork/App.java

@@ -35,6 +35,7 @@ public class App {
    *
    * @param args no argument sent
    */
+
   public static void main(String[] args) {
     var ram = new Student(1, "Ram", "Street 9, Cupertino");
     var shyam = new Student(2, "Shyam", "Z bridge, Pune");

unit-of-work/src/main/java/com/iluwatar/unitofwork/UnitActions.java

@@ -1,18 +1,40 @@
+/*
+ * The MIT License
+ * Copyright © 2014-2019 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
 package com.iluwatar.unitofwork;
 
 public enum UnitActions {
-    INSERT("INSERT"),
-    DELETE("DELETE"),
-    MODIFY("MODIFY")
-    ;
+  INSERT("INSERT"),
+  DELETE("DELETE"),
+  MODIFY("MODIFY");
 
-    private final String actionValue;
+  private final String actionValue;
 
-    UnitActions(String actionValue) {
-        this.actionValue = actionValue;
-    }
+  UnitActions(String actionValue) {
+    this.actionValue = actionValue;
+  }
 
-    public String getActionValue() {
-        return actionValue;
-    }
+  public String getActionValue() {
+    return actionValue;
+  }
 }

unit-of-work/src/test/java/com/iluwatar/unitofwork/AppTest.java

@@ -31,6 +31,7 @@ import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
  * AppTest
  */
 public class AppTest {
+
   @Test
   public void shouldExecuteWithoutException() {
     assertDoesNotThrow(() -> App.main(new String[]{}));