Bug 186403 [KeyBindings] provide conflict information to users outside of logging
bundles/org.eclipse.jface/src/org/eclipse/jface/bindings/BindingManager.java
return;
		}
		final Object currentValue = map.get(key);
		if (currentValue != null) {
			final Collection values = (Collection) currentValue;
			values.add(value);
		} else { 
			final Collection values = new ArrayList(1);
			values.add(value);
			map.put(key, values);
		}
	}
	/**
	 * <p>
	 * Takes a fully-specified string, and converts it into an array of
	 * increasingly less-specific strings. So, for example, "en_GB" would become
	 * ["en_GB", "en", "", null].
	 * </p>
	 * <p>
	 * This method runs in linear time (O(n)) over the length of the string.
	 * </p>
	 * 
	 * @param string
	 *            The string to break apart into its less specific components;
	 *            should not be <code>null</code>.
	 * @param separator
	 *            The separator that indicates a separation between a degrees of
	 *            specificity; should not be <code>null</code>.
	 * @return An array of strings from the most specific (i.e.,
	 *         <code>string</code>) to the least specific (i.e.,