test/gc/arguments/TestObjectTenuringFlags.java

@@ -155,11 +155,11 @@
           ExpectedTenuringFlags expectedFlags) throws Exception {
     List<String> vmOpts = new ArrayList<>();
     if (tenuringFlags.length > 0) {
       Collections.addAll(vmOpts, tenuringFlags);
     }
-    Collections.addAll(vmOpts, "-XX:+PrintFlagsFinal", "-version");
+    Collections.addAll(vmOpts, "-XX:+UseParallelGC", "-XX:+PrintFlagsFinal", "-version");
 
     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(vmOpts.toArray(new String[vmOpts.size()]));
     OutputAnalyzer output = new OutputAnalyzer(pb.start());
 
     if (shouldFail) {