### Question:
IdUtils { public static String getRawId(final String prefixedId) { if (isEmpty(prefixedId)) { return ""; } final String[] parts = prefixedId.split(SEPARATOR_DELIMITER); switch (parts.length) { case 1: return parts[0]; case 2: return parts[1]; default: return ""; } }  static String getPrefixedId(final String prefixId,
                                       final String rawId); static String getRawId(final String prefixedId); static String getComposedId(final String... parts); static String getShapeId(final JSIDMNDiagram diagram,
                                    final List<String> dmnElementIds,
                                    final String dmnElementId); static String getEdgeId(final JSIDMNDiagram diagram,
                                   final List<String> dmnElementIds,
                                   final String dmnElementId); static String uniqueId();  }### Answer:
@Test public void testGetRawId() { assertEquals("2222", getRawId("1111#2222")); assertEquals("2222", getRawId("#2222")); assertEquals("2222", getRawId("2222")); }