Name: ipR10067 Date: 09/03/2001



The method ImageOutputStreamImpl.writeBit() throws IndexOutOfBoundsException
after setBitOffset() method invocation with non-zero bit offset.
Whet bit offset is zero it works fine.

To reproduce this bug run the following test:
---------------------test.java--------------
import java.io.*;
import javax.imageio.stream.*;

public class test {
    public static void main(String[] argv) {

       ByteArrayOutputStream ostream = new ByteArrayOutputStream();

       MemoryCacheImageOutputStream iosI = new MemoryCacheImageOutputStream(ostream);

       try {
   /* work around
            iosI.setBitOffset(0);
            iosI.writeBit(0);
   */

            iosI.setBitOffset(2);
            iosI.writeBit(1);
            System.out.println("third bit has been set successfully!");

        } catch (IOException e) {
             System.out.println("Failed: unxepected Exception: " + e);
        }
   }
}

-----------------------------------------
% javac test.java
% java -version
novo50% java -version
java version "1.4.0-beta3"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta3-b78)
Java HotSpot(TM) Client VM (build 1.4.0-beta3-b78, mixed mode)
% java test
Exception in thread "main" java.lang.IndexOutOfBoundsException: pos < flushedPos!
at javax.imageio.stream.ImageInputStreamImpl.seek(ImageInputStreamImpl.java:732)
at javax.imageio.stream.ImageOutputStreamImpl.writeBits(ImageOutputStreamImpl.java:389)
at javax.imageio.stream.ImageOutputStreamImpl.writeBit(ImageOutputStreamImpl.java:372)
at test.main(test.java:14)


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