--- old/test/hotspot/jtreg/runtime/appcds/TestCommon.java	2019-03-24 20:44:09.202196785 -0700
+++ new/test/hotspot/jtreg/runtime/appcds/TestCommon.java	2019-03-24 20:44:09.050191408 -0700
@@ -149,6 +149,12 @@
     // Execute JVM using AppCDS archive with specified AppCDSOptions
     public static OutputAnalyzer runWithArchive(AppCDSOptions opts)
         throws Exception {
+      ProcessBuilder pb = createProcessBuilderWithArchive(opts);
+      return executeAndLog(pb, "exec");
+    }
+
+    public static ProcessBuilder createProcessBuilderWithArchive(AppCDSOptions opts)
+        throws Exception {
 
         ArrayList<String> cmd = new ArrayList<String>();
 
@@ -168,7 +174,7 @@
 
         String[] cmdLine = cmd.toArray(new String[cmd.size()]);
         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, cmdLine);
-        return executeAndLog(pb, "exec");
+        return pb;
     }
 
 
@@ -205,6 +211,12 @@
         return runWithArchive(opts);
     }
 
+    public static ProcessBuilder createProcessBuilderWithAutoArchive(String... suffix) throws Exception {
+        AppCDSOptions opts = (new AppCDSOptions());
+        opts.addSuffix(suffix).setXShareMode("auto");
+        return createProcessBuilderWithArchive(opts);
+    }
+
     public static OutputAnalyzer execOff(String... suffix) throws Exception {
         AppCDSOptions opts = (new AppCDSOptions());
         opts.addSuffix(suffix).setXShareMode("off");