public static String[] getJobFilterNames() {
    if ( STRING_JOB_FILTER_NAMES == null ) {
      STRING_JOB_FILTER_NAMES =
        new String[] {
          BaseMessages.getString( PKG, "Const.FileFilter.Jobs" ),
          BaseMessages.getString( PKG, "Const.FileFilter.XML" ),
          BaseMessages.getString( PKG, "Const.FileFilter.All" ) };
    }
    return STRING_JOB_FILTER_NAMES;
  }
@Test
  public void testGetJobFilterNames() {
    List<String> filters = Arrays.asList( Const.getJobFilterNames() );
    assertTrue( filters.size() == 3 );
    for ( String filter : filters ) {
      assertFalse( filter.isEmpty() );
    }
  }