Method checkCollectionType

src/main/java/groovy/lang/Sequence.java:277–283

Checks that each member of the given collection are of the correct type

(Collection c)

     * type
     */
    protected void checkCollectionType(Collection c) {
        if (type != null) {
            for (Object element : c) {
                checkType(element);
            }
        }
    }

    /**
     * Checks that the given object instance is of the correct type