8285890: Fix some @param tags

Reviewed-by: dfuchs, mullan, darcy, mchung, wetmore

src/java.base/share/classes/java/lang/ref/ReferenceQueue.java

@@ -31,7 +31,7 @@ import jdk.internal.misc.VM;
 /**
  * Reference queues, to which registered reference objects are appended by the
  * garbage collector after the appropriate reachability changes are detected.
- * @param<T> the type of the reference object
+ * @param <T> the type of the reference object
  *
  * @author   Mark Reinhold
  * @since    1.2