diff -r 2c3cc4b01880 -r c16ac7a2eba4 src/jdk.jfr/share/classes/jdk/jfr/events/ActiveSettingEvent.java
--- a/src/jdk.jfr/share/classes/jdk/jfr/events/ActiveSettingEvent.java	Wed Oct 30 16:14:56 2019 +0100
+++ b/src/jdk.jfr/share/classes/jdk/jfr/events/ActiveSettingEvent.java	Wed Oct 30 19:43:52 2019 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -37,6 +37,13 @@
 @StackTrace(false)
 public final class ActiveSettingEvent extends AbstractJDKEvent {
 
+    public static final ThreadLocal<ActiveSettingEvent> EVENT = new ThreadLocal<ActiveSettingEvent>() {
+        @Override
+        protected ActiveSettingEvent initialValue() {
+            return new ActiveSettingEvent();
+        }
+    };
+
     @Label("Event Id")
     public long id;