diff -r ca19b94eac7a -r fe78b5a87287 src/jdk.jfr/share/classes/jdk/jfr/consumer/EventStream.java
--- a/src/jdk.jfr/share/classes/jdk/jfr/consumer/EventStream.java	Wed Sep 25 22:40:41 2019 +0200
+++ b/src/jdk.jfr/share/classes/jdk/jfr/consumer/EventStream.java	Thu Sep 26 15:13:04 2019 +0200
@@ -96,7 +96,7 @@
  *
  * <pre>
  * <code>
- * try (EventStream es = EventStream.openRepository()) {
+ * try (var es = EventStream.openRepository()) {
  *   es.onEvent("jdk.CPULoad", event -> {
  *     System.out.println("CPU Load " + event.getEndTime());
  *     System.out.println(" Machine total: " + 100 * event.getFloat("machineTotal") + "%");
@@ -241,6 +241,8 @@
 
     /**
      * Releases all resources associated with this stream.
+     * <p>
+     * Closing a previously closed stream has no effect.
      */
     void close();