When is UnsupportedOperationException Thrown in Java ?

In a Java collection UnsupportedOperationException is thrown when the requested operation is not supported by the collection.

It is an unchecked exception that is thrown on optional operations.

If there is an optional add() or remove() methods in a read only collection, then this exception can be thrown.

You May Interest

How Do You Debug Code in JSP ?

What is the Difference Between a Class and an Object in Java ?

What is the Advantage of Using Unicode Characters in Java ?

What are the Main Uses of Spring MVC Module ?

What is the Difference Between DOM and SAX Parser in Java ?