Re: ILERPG call to Java get list fails and generates core dump

On 10 January 2017 at 17:10, Don Brown <DBrown@xxxxxxxxxx> wrote:

For example the method getFirst in class
com.braintreegateway.ResourceCollection has the following declaration in
Eclipse:

public T getFirst()

What is the declaration in the Javadoc?
Often, a vendor will provide example code in Java that we can build
from. Can you post some working Java code? The point being that at
this stage it's hard to tell if you're fighting with RPG or Java. I
would be extremely surprised to learn that the Javadoc has getFirst()
returning java.lang.Object. By using a pure Java example, you would
know that it's not an RPG detail that's the bump in the road. Or that
it is!

Java is clever enough to automatically cast the return object to the
object specified by the type ‘T’. In this case T is
com.braintreegateway.Transaction.

This looks more like something I'd expect to see. In which case, your
RPG prototype would be an object patterned after
com.braintree.Transaction, not java.lang.Object. As Scott notes,
there really isn't a need for RPG to cast to another object type;
simply have your prototype return the expected object.
--buck