@Override
	public void setFieldComment(@Nonnull String name, @Nonnull String descriptor, @Nullable String comment) {
		String key = name + ' ' + descriptor;
		if (comment == null)
			fieldComments.remove(key);
		else
			fieldComments.put(key, comment);
		lastUpdatedTime = Instant.now();
	}
Basic class comment container for persistence.

@author Matt Coley
recaf-core/src/main/java/software/coley/recaf/services/comment/PersistClassComments.java