test/hotspot/jtreg/runtime/cds/DeterministicDump.java

@@ -72,10 +72,12 @@
  
          if (Platform.is64bit()) {
              // This option is available only on 64-bit.
              String sign = (compressed) ?  "+" : "-";
              baseArgs.add("-XX:" + sign + "UseCompressedOops");
+             baseArgs.add("-XX:+UnlockExperimentalVMOptions");
+             baseArgs.add("-XX:-UseCompactObjectHeaders");
          }
  
          String baseArchive = dump(baseArgs);
          File baseArchiveFile = new File(baseArchive + ".jsa");
          HEADER_SIZE = CDSArchiveUtils.fileHeaderSize(baseArchiveFile);