final List<PatternConstraint> patternConstraints = ((StringTypeDefinition) type).getPatternConstraints();
assertEquals(1, patternConstraints.size());
final PatternConstraint pattern = patternConstraints.iterator().next();
final List<PatternConstraint> patternConstraints = ((StringTypeDefinition) type).getPatternConstraints();
assertEquals(1, patternConstraints.size());
final PatternConstraint pattern = patternConstraints.iterator().next();