You are given the task to refactor a long series of if-else-if conditions that check for various states of an object. The code is hard to read and maintain. What would be an efficient way to refactor this using modern Java features?

To refactor a long series of if-else-if conditions efficiently, you can replace it with a switch expression. Switch expressions in modern Java (Java 12 and later) allow you to map different object states to specific actions cleanly and maintainably. It's a more concise and readable way to handle multiple states compared to a complex if-else chain. Breaking the code into smaller methods can improve readability, but it won't eliminate the need for conditional logic.