@Override
        public void edgePropertyRemoved(final Edge element, final Property o) {
            edgePropertyRemovedEvent.incrementAndGet();
            order.add("e-property-removed-" + element.id() + "-" + o);
        }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/strategy/decoration/EventStrategyProcessTest.java