--- a/test/hotspot/jtreg/runtime/appcds/sharedStrings/FlagCombo.java	Fri Aug 10 00:20:15 2018 +0200
+++ b/test/hotspot/jtreg/runtime/appcds/sharedStrings/FlagCombo.java	Thu Aug 09 15:52:23 2018 -0700
@@ -55,7 +55,7 @@
         SharedStringsUtils.buildJar("HelloString");
 
         SharedStringsUtils.dump(TestCommon.list("HelloString"),
-            "SharedStringsBasic.txt");
+            "SharedStringsBasic.txt", "-Xlog:cds,cds+hashtables");
 
         SharedStringsUtils.runWithArchive("HelloString", "-XX:+UseG1GC");