Update README.md

2020-08-29 22:13:55 +03:00
parent bc35911475
commit 67d1d16e1f
3 changed files with 77 additions and 39 deletions
--- a/observer/src/main/java/com/iluwatar/observer/generic/Observable.java
+++ b/observer/src/main/java/com/iluwatar/observer/generic/Observable.java
@ -35,7 +35,7 @@ import java.util.concurrent.CopyOnWriteArrayList;
 */
 public abstract class Observable<S extends Observable<S, O, A>, O extends Observer<S, O, A>, A> {

-  protected List<O> observers;
+  protected final List<O> observers;

  public Observable() {
    this.observers = new CopyOnWriteArrayList<>();