Bug 153933 [Dialogs] [RCP] Dialog.DLG_IMG_HELP not available in RCP apps
bundles/org.eclipse.jface/src/org/eclipse/jface/resource/JFaceResources.java
* @param key
	 *            the resource name
	 * @return the string
	 */
	public static String getString(String key) {
		try {
			return bundle.getString(key);
		} catch (MissingResourceException e) {
			return key;
		}
	}
	/**
	 * Returns a list of string values corresponding to the given list of keys.
	 * The lookup is done with <code>getString</code>. The values are in the
	 * same order as the keys.
	 * 
	 * @param keys
	 *            a list of keys
	 * @return a list of corresponding string values
	 */
	public static String[] getStrings(String[] keys) {
		Assert.isNotNull(keys);
		int length = keys.length;
		String[] result = new String[length];
		for (int i = 0; i < length; i++) {
			result[i] = getString(keys[i]);
		}
		return result;
	}
	/**