Adjust checkstyle rules. Make checkstyle fail the build when violations are found. Correct all current checkstyle violations.

execute-around/src/main/java/com/iluwatar/execute/around/App.java

@@ -17,9 +17,6 @@ public class App {
 
   /**
    * Program entry point
-   * 
-   * @param args command line args
-   * @throws IOException
    */
   public static void main(String[] args) throws IOException {
 

execute-around/src/main/java/com/iluwatar/execute/around/SimpleFileWriter.java

@@ -11,6 +11,9 @@ import java.io.IOException;
  */
 public class SimpleFileWriter {
 
+  /**
+   * Constructor
+   */
   public SimpleFileWriter(String filename, FileWriterAction action) throws IOException {
     FileWriter writer = new FileWriter(filename);
     try {

execute-around/src/test/java/com/iluwatar/execute/around/SimpleFileWriterTest.java

@@ -65,11 +65,11 @@ public class SimpleFileWriterTest {
    * Verify if an {@link IOException} during the write ripples through
    */
   @Test(expected = IOException.class)
-  public void testIOException() throws Exception {
+  public void testIoException() throws Exception {
     final File temporaryFile = this.testFolder.newFile();
     new SimpleFileWriter(temporaryFile.getPath(), writer -> {
-      throw new IOException("");
-    });
+        throw new IOException("");
+      });
   }
 
 }