--- old/src/java.management/share/classes/javax/management/openmbean/TabularType.java	2018-12-06 14:53:23.587976642 -0500
+++ new/src/java.management/share/classes/javax/management/openmbean/TabularType.java	2018-12-06 14:53:23.423975829 -0500
@@ -165,7 +165,7 @@
      */
     private static void checkForEmptyString(String[] arg, String argName) {
         for (int i=0; i<arg.length; i++) {
-            if (arg[i].trim().equals("")) {
+            if (arg[i].trim().isEmpty()) {
                 throw new IllegalArgumentException("Argument's element "+ argName +"["+ i +"] cannot be an empty string.");
             }
         }