public Optional<Path> pathOf(final Object value) {
		return Optional.ofNullable(data().objectPaths.get(value));
	}
Return the path of the given {@code value}, if it is part of the object
graph and an <em>identity</em> object.

@param value the value to lookup in the object graph
@return the object path if its part of the object graph
jenetics.incubator/src/main/java/io/jenetics/incubator/beans/ModelBean.java