java.text.BreakIterator fails to be serialized.

Name: avC70361 Date: 12/04/97



  The java.text.BreakIterator instance obtained with BreakIterator.
getCharacterInstance(), getLineInstance() etc. methods in spite of implementing
the java.io.Serializable interface fails to be serialized throwing
NotSerializableException for one of its auxiliary classes such a
CharacterBreakData.

Here is the test demonstrating the bug.
------------BreakIteratorTest.java------------
import java.text.BreakIterator;
import java.io.IOException;
import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;

public class BreakIteratorTest {

  public static void main(String args[]) {

    ObjectOutputStream stream = null;

    try {

      stream = new ObjectOutputStream(
        new ByteArrayOutputStream()
      );

    } catch(IOException e) {
      System.out.println("Unexpected exception : " + e);
      System.exit(1);
    }

    try {

      stream.writeObject(BreakIterator.getCharacterInstance());

    } catch(IOException e) {
      System.out.println("getCharacterInstance : unexpected exception : " + e);
    }

    try {

      stream.writeObject(BreakIterator.getLineInstance());

    } catch(IOException e) {
      System.out.println("getLineInstance : unexpected exception : " + e);
    }

    try {

      stream.writeObject(BreakIterator.getSentenceInstance());

    } catch(IOException e) {
      System.out.println("getSentenceInstance : unexpected exception : " + e);
    }

    try {

      stream.writeObject(BreakIterator.getWordInstance());

    } catch(IOException e) {
      System.out.println("getWordInstance : unexpected exception : " + e);
    }

    System.exit(0);

  }

}
----------------------------
------The test output-------
#>java BreakIteratorTest
getCharacterInstance : unexpected exception : java.io.NotSerializableException: java.text.CharacterBreakData
getLineInstance : unexpected exception : java.io.NotSerializableException: java.text.LineBreakData
getSentenceInstance : unexpected exception : java.io.NotSerializableException: java.text.SentenceBreakData
getWordInstance : unexpected exception : java.io.NotSerializableException: java.text.WordBreakData
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