--- old/test/hotspot/jtreg/runtime/appcds/sharedStrings/SharedStringsUtils.java	2018-10-29 14:02:59.421778612 -0700
+++ new/test/hotspot/jtreg/runtime/appcds/sharedStrings/SharedStringsUtils.java	2018-10-29 14:02:59.057764208 -0700
@@ -30,6 +30,11 @@
     public static final String TEST_JAR_NAME =      "test";
     public static final String TEST_JAR_NAME_FULL = "test.jar";
     public static final String WHITEBOX_JAR_NAME =  "whitebox";
+    private static String vmOptionsPrefix[] = {};
+
+    static void setVMOptionsPrefix(String[] opts) {
+        vmOptionsPrefix = opts;
+    }
 
     public static String getWbParam() {
         return "-Xbootclasspath/a:" + TestCommon.getTestJar(WHITEBOX_JAR_NAME + ".jar");
@@ -55,6 +60,7 @@
             TestCommon.concat(extraOptions, "-XX:+UseCompressedOops", "-XX:+UseG1GC",
             "-XX:SharedArchiveConfigFile=" +
             TestCommon.getSourceFile(sharedDataFile));
+        args = TestCommon.concat(vmOptionsPrefix, args);
 
         return TestCommon.dump(appJar, appClasses, args);
     }
@@ -80,6 +86,7 @@
         String appJar = TestCommon.getTestJar(TEST_JAR_NAME_FULL);
         String[] args = TestCommon.concat(extraOptions,
             "-cp", appJar, "-XX:+UseCompressedOops", "-XX:+UseG1GC", className);
+        args = TestCommon.concat(vmOptionsPrefix, args);
 
         OutputAnalyzer output = TestCommon.execAuto(args);
         checkExecAuto(output);
@@ -98,6 +105,7 @@
         String appJar = TestCommon.getTestJar(TEST_JAR_NAME_FULL);
         String[] args = TestCommon.concat(extraOptions,
             "-XX:+UseCompressedOops", "-XX:+UseG1GC", className);
+        args = TestCommon.concat(vmOptionsPrefix, args);
 
         OutputAnalyzer output = TestCommon.exec(appJar, args);
         checkExec(output, extraMatches);