tracks/java/exercises/difference-of-squares/src/test/java/DifferenceOfSquaresCalculatorTest.java in trackler-2.1.0.19 vs tracks/java/exercises/difference-of-squares/src/test/java/DifferenceOfSquaresCalculatorTest.java in trackler-2.1.0.20

@@ -5,10 +5,10 @@
 import static org.junit.Assert.assertEquals;
 
 /*
  * version: 1.1.0
  */
-public final class DifferenceOfSquaresCalculatorTest {
+public class DifferenceOfSquaresCalculatorTest {
 
     private DifferenceOfSquaresCalculator calculator;
 
     @Before
     public void setUp() {