@Override
		public boolean hasNext() {
			return nextRange != null;
		}
Returns the object associated with the given index or null if no object is associated with
the given index.  Note that null is a valid association so a null result could be either
no association or an actual association of the index to null.  Use the contains() method
first if the distinction is important.  If the contains() method returns true, the result
is cached so the next call to getObject() will be fast. 
@param address the index at which to retrieve an assocated object.
@return the object (which can be null) associated with the given index or null if no such
association exists.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/register/AddressRangeObjectMap.java