src/java.desktop/macosx/classes/sun/font/CFontManager.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -84,11 +84,11 @@
         int rank = 4;
 
         String fontName = f.fullName;
         String familyName = f.familyName;
 
-        if (fontName == null || "".equals(fontName)) {
+        if (fontName == null || fontName.isEmpty()) {
             return null;
         }
 
         // logical fonts always need to be added to the family
         // plus they never need to be added to the generic font list