@Test
public void testTimezoneAdapter() throws Exception {
TimeZoneAdapter adapter = new TimeZoneAdapter();
TimeZone timeZone = TimeZone.getTimeZone("GMT-08:00");
String str = adapter.marshal(timeZone);
Assert.assertEquals(str, "-08:00");
TimeZone timeZoneUtc = adapter.unmarshal("Z");
Assert.assertEquals(timeZoneUtc, TimeZone.getTimeZone("GMT"));
}