private void searchReferences(PropertyAccessorElement accessor, SearchScope scope,
SearchFilter filter, SearchListener listener) {
assert listener != null;
listener = applyFilter(filter, listener);
listener = new CountingSearchListener(2, listener);
index.getRelationships(
accessor,
IndexConstants.IS_REFERENCED_BY_QUALIFIED,
newCallback(MatchKind.PROPERTY_ACCESSOR_REFERENCE, scope, listener));
index.getRelationships(