--- old/src/java.xml/share/classes/javax/xml/catalog/Util.java	2018-12-06 17:26:39.421576318 -0500
+++ new/src/java.xml/share/classes/javax/xml/catalog/Util.java	2018-12-06 17:26:39.253575485 -0500
@@ -221,7 +221,7 @@
      */
     static String[] getCatalogFiles(String sysPropertyName) {
         String value = SecuritySupport.getJAXPSystemProperty(sysPropertyName);
-        if (value != null && !value.equals("")) {
+        if (value != null && !value.isEmpty()) {
             return value.split(";");
         }
         return null;