Wrapping a checked exception into an unchecked exception in Java?

Question

I have this factory method in java:

public static Properties getConfigFactory() throws ClassNotFoundException, IOException {
    if (config == null) {
               


        

Answer 1

Two points regarding exception handling best practices:

• Caller code cannot do anything about the exception -> Make it an unchecked exception
• Caller code will take some useful recovery action based on information in exception -> Make it a checked exception

And you may throw the RuntimeException with or without inner exception, depending on what the caller can do with it. If you're not rethrowing the inner exception then you should log it in your method, if important.