--- old/src/java.scripting/share/classes/com/sun/tools/script/shell/Main.java	2018-12-06 14:53:42.844072128 -0500
+++ new/src/java.scripting/share/classes/com/sun/tools/script/shell/Main.java	2018-12-06 14:53:42.672071275 -0500
@@ -114,7 +114,7 @@
                     System.setProperty(value.substring(0, eq),
                             value.substring(eq + 1));
                 } else {
-                    if (!value.equals("")) {
+                    if (!value.isEmpty()) {
                         System.setProperty(value, "");
                     } else {
                         // do not allow empty property name