Can Java throw a null reference to an exception? [duplicate]

问题

This question already has answers here:

Why can I throw null in Java? [duplicate] (7 answers)

Closed 5 years ago.

Consider this code:

try {
    ....
} catch (MyException e){
    /*Can e be null here?*/
}

Given that null in Java is a typed null reference, is it ever possible that the catch block above will be entered with e as null?

回答1:

e will never be null. Even if null gets thrown somewhere for some reason, e will just be a NullPointerException.

来源：https://stackoverflow.com/questions/22378147/can-java-throw-a-null-reference-to-an-exception