8353235: Test jdk/jfr/api/metadata/annotations/TestPeriod.java fails with IllegalArgumentException

Reviewed-by: egahlin

Author: SendaoYan

test/jdk/jdk/jfr/api/metadata/annotations/TestPeriod.java

@@ -26,6 +26,7 @@
 import jdk.jfr.Event;
 import jdk.jfr.EventType;
 import jdk.jfr.Period;
+import jdk.jfr.FlightRecorder;
 import jdk.test.lib.Asserts;
 import jdk.test.lib.jfr.Events;
 
@@ -44,6 +45,7 @@ static class PeriodicEvent extends Event {
 
     public static void main(String[] args) throws Exception {
         EventType periodicEvent = EventType.getEventType(PeriodicEvent.class);
+        FlightRecorder.addPeriodicEvent(PeriodicEvent.class, () -> {});
         String defaultValue = Events.getSetting(periodicEvent, Period.NAME).getDefaultValue();
         Asserts.assertEQ(defaultValue, "47 s", "Incorrect default value for period");
     }