8294758: JFR: Docs build fails after changes to RecordedObject and Timespan

Reviewed-by: mgronlun, alanb

Author: egahlin

src/jdk.jfr/share/classes/jdk/jfr/Timespan.java

@@ -33,7 +33,7 @@
 /**
  * Event field annotation, specifies that the value is a duration.
  * <p>
- * If the annotated value equals {@code Long.MAX_VALUE), it represents forever.
+ * If the annotated value equals {@code Long.MAX_VALUE}, it represents forever.
  *
  * @since 9
  */

src/jdk.jfr/share/classes/jdk/jfr/consumer/RecordedObject.java

@@ -758,7 +758,7 @@ public final String getString(String name) {
      * <p>
      * If the committed event value was {@code Long.MAX_VALUE},
      * regardless of the unit set by {@code @Timespan}, this method returns
-     * {@link ChronoUnit.FOREVER.getDuration()}.
+     * {@link ChronoUnit#FOREVER}.
      * <p>
      * It's possible to index into a nested object using {@code "."} (for example,
      * {@code "aaa.bbb"}).