--- a/test/hotspot/jtreg/runtime/appcds/sharedStrings/SharedStringsStress.java	Wed Aug 01 19:14:04 2018 -0400
+++ b/test/hotspot/jtreg/runtime/appcds/sharedStrings/SharedStringsStress.java	Wed Aug 01 19:07:27 2018 -0700
@@ -30,6 +30,8 @@
  * @modules jdk.jartool/sun.tools.jar
  * @build HelloString
  * @run main SharedStringsStress
+ * @run main/othervm -XX:+UseStringDeduplication SharedStringsStress
+ * @run main/othervm -XX:-CompactStrings SharedStringsStress
  */
 import java.io.File;
 import java.io.FileOutputStream;