How to make ArrayList Immutable

By default ArrayList is modifiable, JDK gives a very good method to make it immutable.

/*Class to make ArrayList Immutable*/

public class ImmutableArrayList {

     public static void main(String[] args) {

          List<String> list = new ArrayList<>(Arrays.asList("Paras","Sonal","Richa","Usha"));

          List<String> unModificableList=Collections.unmodifiableList(list);

          unModificableList.add("Abc");

     }   

}

Output

Exception in thread "main" java.lang.UnsupportedOperationException

     at java.util.Collections$UnmodifiableCollection.add(Unknown Source)

     at com.ArrayList.ImmutableArrayList.main(ImmutableArrayList.java:14)