@Before
public void setUp() throws Exception {
FeatureTypeFactory typeFactory = new UniqueNameFeatureTypeFactoryImpl();
FeatureType type = ComplexTestData.createExample02MultipleMultivalued(typeFactory);
AttributeBuilder ab = new AttributeBuilder(new ValidatingFeatureFactoryImpl());
ab.setType(type);
feature = (Feature) ab.build("test-id");
idExpr = CommonFactoryFinder.getFilterFactory(null).function("getID", new org.opengis.filter.expression.Expression[0]);
}