Name: ipR10067 Date: 09/28/2001



Specification of the
method javax.imageio.stream.ImageInputStreamImpl.readUTF says:

"public String readUTF() throws IOException
 ...
    The current byte order setting is ignored.
 ...
"

The implementation (JDK 1.4.0beta3, build b80) of the method
throws unexpected java.io.EOFException when the reverse byte order is set.

To reproduce the bug run the following test:
------------ test.java ------------------------
import java.io.IOException;
import java.nio.ByteOrder;
import java.io.ByteArrayOutputStream;
import javax.imageio.stream.MemoryCacheImageOutputStream;

public class test {
    
    public static void main(String argv[]) {
     
        ByteArrayOutputStream ostream = new ByteArrayOutputStream();
        MemoryCacheImageOutputStream iosI = new MemoryCacheImageOutputStream(ostream);

        char [] bufCharForUTF = { '\u0015', '\u0077', '\u0000', '\u0080', '\u0081',
                                  '\u00cd', '\u07fe', '\u07ff', '\u0800', '\u0801'};
        String s = new String(bufCharForUTF);
        String res;
       
        try {
            iosI.writeUTF(s);
            /* setting network byte order */
            iosI.setByteOrder(ByteOrder.BIG_ENDIAN);
            iosI.seek(0);
            res = iosI.readUTF();
            System.out.println("1. String " + res + " . OKAY");

            /* setting reverse byte order */
            iosI.setByteOrder(ByteOrder.LITTLE_ENDIAN);
            iosI.seek(0);
            res = iosI.readUTF();
            System.out.println("2. String " + res + " . OKAY");

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

------------ Logs -----------------------------
$ java -version
java version "1.4.0-beta3"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta3-b80)
Java HotSpot(TM) Client VM (build 1.4.0-beta3-b80, mixed mode)

$ javac -d . test.java

$ java test
1. String w????. OKAY
Unexpected IOException: java.io.EOFException

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This bug affects new JCK test:
api/javax_imageio/stream/ImageOutputStreamImpl/index.html#WriteUTF[WriteUTF005]

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Name: ipR10067 Date: 09/30/2001



Also this bug affects new JCK tests:
api/javax_imageio/stream/ImageInputStreamImpl/index.html#ReadUTF[ReadUTF002]
api/javax_imageio/stream/ImageInputStreamImpl/index.html#ReadUTF[ReadUTF003]

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