public B throwException() {
            return this.throwException(true);
        }
Implementations should check the traversal and throw a standard {@link VerificationException} as it would if
it had directly implemented {@link #apply(Traversal.Admin)}. The message provided to the exception will be
used to log a warning and/or the same exception thrown if configured to do so.
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/strategy/verification/AbstractWarningVerificationStrategy.java