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  1. JDK
  2. JDK-4111739

java.text.MessageFormat is incorrectly serialized/deserialized

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    Details

    • Subcomponent:
    • Resolved In Build:
      1.2beta4
    • CPU:
      sparc
    • OS:
      solaris_2.5
    • Verification:
      Verified

      Description



      Name: avC70361 Date: 02/11/98



        The java.text.MessageFormat serialization/deserialization process is
      incorrectly perfomed. Instances before and after serialization are not equal.

      Here is the test demonstrating the bug
      -------------MessageFormatTest1.java--------------
      import java.text.MessageFormat;
      import java.io.IOException;
      import java.io.ByteArrayInputStream;
      import java.io.ByteArrayOutputStream;
      import java.io.ObjectInputStream;
      import java.io.ObjectOutputStream;

      public class MessageFormatTest1 {

        public static void main(String args[]) {
          MessageFormat format1 = null;
          MessageFormat format2 = null;

          ObjectOutputStream ostream = null;
          ByteArrayOutputStream baos = null;
          ObjectInputStream istream = null;

          try {

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

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

          try {

            format1 = new MessageFormat("pattern{0}");

            ostream.writeObject(format1);
            ostream.flush();

            byte bytes[] = baos.toByteArray();

            istream = new ObjectInputStream(new ByteArrayInputStream(bytes));
            format2 = (MessageFormat)istream.readObject();

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

          if (!format1.equals(format2)) {
            System.out.println("MessageFormats before and after serialization are not equal\nformat1 = " + format1 + "(" + format1.toPattern() + ")\nformat2 = " + format2 + "(" + format2.toPattern() + ")");
          } else {
            System.out.println("OK");
          }
        }

      }
      ------The test output--------
      > java MessageFormatTest1
      MessageFormats before and after serialization are not equal
      format1 = java.text.MessageFormat@d0d8eb90(pattern{0})
      format2 = java.text.MessageFormat@d0d8eb90(pattern{0})

      ======================================================================

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            Assignee:
            duke J. Duke (Inactive)
            Reporter:
            ovlasov Oleksandr Vlasov (Inactive)
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