Hello - I am stuck with classcastexception during the run time

I have a nested complex type which has complex type of list and trying to get the first list item as below

sources = (java.util.List)sourceGroups.get(sgCount-1);

This is fine with no errors but during runtime there is an exception...

Here sources is java.util.List and sourceGroups is of type list<SourceGroup> where SourceGroup is another complex type.

How can I resolve this issue? Kindly suggest...

Thanks,

if sourceGroups is a list of SourceGroup the operation get() is going to return a SourceGroup and not a list no? should you cast to SourceGroup first

then inside the SourceGroup there is an attribute of type list.

Thanks a lot, AlainRobert!