Difference between "throw(e)" and "throw e"?

Question

I came across this rethrown exception and am surprised that it even compiles.

} catch(SomeException e) {
    ...
    throw(e);
}

Is there any difference between this throw() and what is normally used?...

} catch(SomeException e) {
    ...
    throw e;
}

Any links to where this is documented or guidance on choosing one over the other?

Answer 1

Quite a few languages allow as many parenthesis around expressions as you want. Java is one of them. The following is perfectly valid code.

public class HelloWorld {
  public static void main(String[] args) {
    throw ((((new RuntimeException()))));
  }
}

So there's absolutely no difference, except that your source file is two bytes larger.