ISO8601DateConverter ignores current TimeZone

To serialize and deserialize a Date with ISO8601 the time zone must match, otherwise the time shifts. The current implementation ignores the current TimeZone of the JDK completely:

public void testSavedTimeIsInUTC()

{ TimeZone.setDefault(TimeZone.getTimeZone("EST")); Date in = new Date(); SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ"); String jdkConverted = format.format(in); String iso8601 = jdkConverted.substring(0, jdkConverted.length() - 2) + ":" + jdkConverted.substring(jdkConverted.length() - 2); assertEquals(iso8601, converter.toString(in)); }

Since the ISO8601 writes the date in UTC, the resulting string should be the same. Unfortunately it is the UTC representation of the default TimeZone of the computer.