@Override
    public int hashCode() {
        return this.getClass().hashCode() ^ Objects.hashCode(this.end);
    }
A {@link Traversal} that always returns a constant value.

@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/lambda/ConstantTraversal.java