Merge pull request #6 from apache/dependabot/github_actions/actions/checkout-v2.3.4

Bump actions/checkout from v2.3.3 to v2.3.4
diff --git a/src/test/java/org/apache/bsf/util/StringUtilsTest.java b/src/test/java/org/apache/bsf/util/StringUtilsTest.java
index 6c5bbc2..06bdb1d 100644
--- a/src/test/java/org/apache/bsf/util/StringUtilsTest.java
+++ b/src/test/java/org/apache/bsf/util/StringUtilsTest.java
@@ -153,8 +153,8 @@
         String result;
 
         final Vector vector = new Vector();
-        vector.add(new Character('a'));
-        vector.add(new Character('b'));
+        vector.add(Character.valueOf('a'));
+        vector.add(Character.valueOf('b'));
 
         result = StringUtils.getCommaListFromVector(vector);
         assertTrue(result.equals("a, b"));