test/gc/arguments/TestInitialTenuringThreshold.java

*** 37,46 ****
--- 37,47 ----
  
  public class TestInitialTenuringThreshold {
  
    public static void runWithThresholds(int initial, int max, boolean shouldfail) throws Exception {
      ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+       "-XX:+UseParallelGC",
        "-XX:InitialTenuringThreshold=" + String.valueOf(initial),
        "-XX:MaxTenuringThreshold=" + String.valueOf(max),
        "-version"
        );