Null Java References In Coldfusion 6 Vs 7
By: admin
ColdFusion 7 appears to be much better at passing null values to a java object.
ColdFusion 6 however likes to block you from doing it, even when you want to.
I am tring to work with a java API that requires me to pass a null value to a method.
Since CFMX 6 has no way of creating a null value I though I would use the Java API to concoct one.
So I did something like this:
vector = CreateObject("java", "java.util.Vector");
vector.setSize(1);
someAPI.methodThatRequiresANull(vector.get(0));
This works on ColdFusion 7, but on ColdFusion 6 it throws an exception:
The system has attempted to use an undefined value, which usually indicates a programming error, either in your code or some system code.
Null Pointers are another name for undefined values.
This trick isn’t really useful because in ColdFusion 7 you can create a null value by calling JavaCast and using “null” as the type.
For example:
someAPI.methodThatRequiresANull( JavaCast("null", "") );
Does anyone know of a way to pass nulls that works in CF 6?
I know I could just write some java, but I want the solution to be pure CFML in this case.