private Statement createConstructorStatement(
     ClassNode cNode,
     PropertyNode pNode,
     List<String> knownImmutableClasses,
     List<String> knownImmutables) {
   FieldNode fNode = pNode.getField();
   final ClassNode fieldType = fNode.getType();
   Statement statement = null;
   if (fieldType.isArray() || isOrImplements(fieldType, CLONEABLE_TYPE)) {
     statement = createConstructorStatementArrayOrCloneable(fNode);
   } else if (isKnownImmutableClass(fieldType, knownImmutableClasses)
       || isKnownImmutable(pNode.getName(), knownImmutables)) {
     statement = createConstructorStatementDefault(fNode);
   } else if (fieldType.isDerivedFrom(DATE_TYPE)) {
     statement = createConstructorStatementDate(fNode);
   } else if (isOrImplements(fieldType, COLLECTION_TYPE)
       || fieldType.isDerivedFrom(COLLECTION_TYPE)
       || isOrImplements(fieldType, MAP_TYPE)
       || fieldType.isDerivedFrom(MAP_TYPE)) {
     statement = createConstructorStatementCollection(fNode);
   } else if (fieldType.isResolved()) {
     addError(
         createErrorMessage(cNode.getName(), fNode.getName(), fieldType.getName(), "compiling"),
         fNode);
     statement = EmptyStatement.INSTANCE;
   } else {
     statement = createConstructorStatementGuarded(cNode, fNode);
   }
   return statement;
 }
 private boolean isKnownImmutableClass(ClassNode fieldType, List<String> knownImmutableClasses) {
   if (!fieldType.isResolved()) return false;
   return fieldType.isEnum()
       || ClassHelper.isPrimitiveType(fieldType)
       || fieldType.getAnnotations(MY_TYPE).size() != 0
       || inImmutableList(fieldType.getName())
       || knownImmutableClasses.contains(fieldType.getName());
 }