tracks/java/exercises/queen-attack/src/test/java/QueenAttackCalculatorTest.java in trackler-2.1.0.18 vs tracks/java/exercises/queen-attack/src/test/java/QueenAttackCalculatorTest.java in trackler-2.1.0.19

@@ -4,10 +4,10 @@
 import org.junit.rules.ExpectedException;
 
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
-public final class QueenAttackCalculatorTest {
+public class QueenAttackCalculatorTest {
 
     /*
      * See https://github.com/junit-team/junit4/wiki/Rules for information on JUnit Rules in general and
      * ExpectedExceptions in particular.
      */