Alan Burlison wrote:
Rick Hillegas wrote:
It is hard to say where the NullPointerException originates. Could you
post a reproducible test case and the full stack trace from derby.log?
Umm, it may be my bad, I have the following:
public static int iGoBang() {
int pop = 0 == 0 ? 1 : null;
return pop;
}
Which compiles but blows up, whereas
public static int iGoBang() {
return null;
}
won't even compile. Because you can't assign null to a primitive type -
duh. Which leaves 2 questions:
1. Why does int pop = 0 == 0 ? 1 : null; even compile?
Maybe the compiler figures out that it's the same as pop = 1 so it
discards the null? Seems like it shouldn't compile.
2. How *do* you return a database NULL from a function with a primitive
type as the return type? String isn't a primitive type.
You need to use the corresponding object type, in this case
java.lang.Integer as the return type.
Dan.
