I have a Common Navigator Content Provider. For get Elements I return
back my model which implements a java.util.Collection, specifically
extends Arraylist.
A second object returned in the same returned array also extends
ArrayList.
However, when I go to view the tree only one object shows up. I tried a
second experiement where I returned new Object[]{new ArrayList(), new
Vector()). I got only one error complaining about a missing label
provider.
What am I doing wrong here? I would expect to be able to return many
types of collections in the same return value.