Merge pull request '更新 Junit 5 的测试类并且准备使用 main 分支' (#15) from code_bank into master

Reviewed-on: https://src.ossez.com/cwiki-us-docs/java-tutorials/pulls/15

core-java-modules/core-java-collections-list/src/test/java/com/ossez/collections/JavaCollectionCleanupUnitTest.java

@@ -34,7 +34,7 @@ public class JavaCollectionCleanupUnitTest {
     @Test
     public void givenListContainsNulls_whenRemovingNullsWithPlainJava_thenCorrect() {
         final List<Integer> list = Lists.newArrayList(null, 1, null);
-        while (list.remove(null));
+        while (list.remove(null)) ;
 
         assertThat(list, hasSize(1));
     }