Name: mlR10151 Date: 04/19/2001



Method writeBits(long,int) of the FileImageOutputStream class throws unexpected IOException.
To reproduce the bug run the following test:

========================== a.java =============================
import java.io.*;
import javax.imageio.stream.*;

public class a {
    public static void main (String argv[]) throws Exception {
        System.setSecurityManager(null);
        File tempFile = File.createTempFile("test", "tmp");
        FileImageOutputStream fios = new FileImageOutputStream(tempFile);
        fios.writeBits(0xFFFFFFFFFFFFFFFFL, 1);
        System.out.println("Passed");
    }
}
==========================log========================
% java -version
java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b60)
Java HotSpot(TM) Client VM (build 1.4.0-beta-b60, mixed mode)
% java a
Exception in thread "main" java.io.IOException: Negative seek offset
        at java.io.RandomAccessFile.seek(Native Method)
        at javax.imageio.stream.FileImageOutputStream.seek(FileImageOutputStream.java:107)
        at javax.imageio.stream.ImageOutputStreamImpl.writeBits(ImageOutputStreamImpl.java:403)
        at a.main(a.java:9)


This bug causes failure of the new JCK test
api/javax_imageio/stream/FileImageOutputStream/index.html#write


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