diff -r f32e61253792 -r fbb62267e5e9 test/hotspot/jtreg/runtime/appcds/sharedStrings/IncompatibleOptions.java
--- a/test/hotspot/jtreg/runtime/appcds/sharedStrings/IncompatibleOptions.java	Fri Aug 10 00:20:15 2018 +0200
+++ b/test/hotspot/jtreg/runtime/appcds/sharedStrings/IncompatibleOptions.java	Thu Aug 09 15:52:23 2018 -0700
@@ -119,6 +119,7 @@
             "-XX:+UseCompressedOops",
             collectorOption,
             "-XX:SharedArchiveConfigFile=" + TestCommon.getSourceFile("SharedStringsBasic.txt"),
+            "-Xlog:cds,cds+hashtables",
             extraOption);
 
         if (expectedWarning != null)