public Collection<Entry> entries(AFreeplaneAction action) {
		final Collection<Entry> collection = entryMap.get(action);
		return collection != null ? collection : Collections.<Entry> emptyList();
	}
@Test
	public void returnsEmptyListIfNoActionWasRegistered() throws Exception {
		final EntriesForAction entriesForAction = new EntriesForAction();
		AFreeplaneAction action = mock(AFreeplaneAction.class);
		Collection<Entry> entries = entriesForAction.entries(action);
		assertThat(entries.isEmpty(), equalTo(true));
	}