@Override
        public void vertexPropertyRemoved(final VertexProperty vertexProperty) {
            vertexPropertyRemovedEvent.incrementAndGet();
            order.add("vp-property-removed-" + vertexProperty.id());
        }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/strategy/decoration/EventStrategyProcessTest.java