Best practice with respect to NPE and multiple expressions on single line
- by JRL
I'm wondering if it is an accepted practice or not to avoid multiple calls on the same line with respect to possible NPEs, and if so in what circumstances. For example:
getThis().doThat();
vs
Object o = getThis();
o.doThat();
The latter is more verbose, but if there is an NPE, you immediately know what is null. However, it also requires creating a name for the variable and more import statements.
So my questions around this are:
Is this problem something worth
designing around? Is it better to go
for the first or second possibility?
Is the creation of a variable name something that would have an effect performance-wise?
Is there a proposal to change the exception
message to be able to determine what
object is null in future versions of
Java ?
