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

@@ -61,11 +61,11 @@
      * Creates a new weak reference that refers to the given object and is
      * registered with the given queue.
      *
      * @param referent object the new weak reference will refer to
      * @param q the queue with which the reference is to be registered,
-     *          or <tt>null</tt> if registration is not required
+     *          or {@code null} if registration is not required
      */
     public WeakReference(T referent, ReferenceQueue<? super T> q) {
         super(referent, q);
     }