Name: avC70361 Date: 12/18/97



  The java.text.DateFormat instances for some locales are incorrectly
serialized/deserialized, although for a number of locales DateFormat
instances
are serialized/deserialized correctly.

Here is the test demonstrating the bug.
------------------DateFormatTest.java------------
import java.text.*;
import java.util.*;
import java.io.*;

public class DateFormatTest {

  public static void main(String args[]) {

    Locale[] locales = new Locale[] {
      Locale.CANADA,
      Locale.CANADA_FRENCH,
      Locale.CHINA,
      Locale.CHINESE,
      Locale.ENGLISH,
      Locale.FRANCE,
      Locale.FRENCH,
      Locale.GERMAN,
      Locale.GERMANY,
      Locale.ITALIAN,
      Locale.ITALY,
      Locale.JAPAN,
      Locale.JAPANESE,
      Locale.KOREA,
      Locale.KOREAN,
      Locale.PRC,
      Locale.SIMPLIFIED_CHINESE,
      Locale.TAIWAN,
      Locale.TRADITIONAL_CHINESE,
      Locale.UK,
      Locale.US
    };

    for(int i = 0; i < locales.length; i++) {

      Format format = DateFormat.getDateTimeInstance(DateFormat.FULL,
DateFormat.FULL, locales[i]);
      try {

        byte[] bytes;

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);

        oos.writeObject(format);
        oos.flush();

        baos.close();
        bytes = baos.toByteArray();

        ObjectInputStream ois = new ObjectInputStream(new
ByteArrayInputStream(bytes));

        if (!format.equals(ois.readObject())) {
          System.out.println("DateFormat instance for locale " +
locales[i] + " is incorrectly serialized/deserialized.");
        } else {
          System.out.println("DateFormat instance for locale " +
locales[i] + " is OKAY.");
        }

      } catch(Exception e) {
        e.printStackTrace();
      }
    }
  }
}
-----------------------The test output------------
#>java DateFormatTest
DateFormat instance for locale en_CA is OKAY.
DateFormat instance for locale fr_CA is OKAY.
DateFormat instance for locale zh_CN is incorrectly
serialized/deserialized.
DateFormat instance for locale zh is incorrectly
serialized/deserialized.
DateFormat instance for locale en is OKAY.
DateFormat instance for locale fr_FR is OKAY.
DateFormat instance for locale fr is OKAY.
DateFormat instance for locale de is OKAY.
DateFormat instance for locale de_DE is OKAY.
DateFormat instance for locale it is OKAY.
DateFormat instance for locale it_IT is OKAY.
DateFormat instance for locale ja_JP is incorrectly
serialized/deserialized.
DateFormat instance for locale ja is incorrectly
serialized/deserialized.
DateFormat instance for locale ko_KR is incorrectly
serialized/deserialized.
DateFormat instance for locale ko is incorrectly
serialized/deserialized.
DateFormat instance for locale zh_CN is incorrectly
serialized/deserialized.
DateFormat instance for locale zh_CN is incorrectly
serialized/deserialized.
DateFormat instance for locale zh_TW is incorrectly
serialized/deserialized.
DateFormat instance for locale zh_TW is incorrectly
serialized/deserialized.
DateFormat instance for locale en_GB is incorrectly
serialized/deserialized.
DateFormat instance for locale en_US is OKAY.
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