@Nonnull
	public static String getAfter(@Nonnull String text, @Nonnull String after) {
		int i = text.lastIndexOf(after);
		if (i < 0) return text;
		return text.substring(i + after.length());
	}
@Test
	void testGetAfter() {
		assertEquals("", StringUtil.getAfter("", ""));
		assertEquals("d", StringUtil.getAfter("a b c d", "c "));
		assertEquals("a b c d", StringUtil.getAfter("a b c d", "z"));
	}