Discovered issue with Travis CI

patterns/visualobserver/BoxObserver.java

@@ -4,7 +4,6 @@
 // Visit http://OnJava8.com for more book information.
 // Demonstration of Observer pattern using
 // Java's built-in observer classes
-// {ValidateByHand} --- TEST TEST TEST
 package patterns.visualobserver;
 import javax.swing.*;
 import java.awt.*;

validating/BadMicroBenchmark.java

@@ -2,7 +2,7 @@
 // (c)2017 MindView LLC: see Copyright.txt
 // We make no guarantees that this code is fit for any purpose.
 // Visit http://OnJava8.com for more book information.
-// {ValidateByHand} --- TEST TEST TEST
+// {ValidateByHand}
 import java.util.*;
 import onjava.Timer;