Name: mlR10151 Date: 04/09/2001



The spec. for the FileCacheImageOutputStream.close() says:

public void close() throws IOException
      Closes this FileCacheImageOututStream. All pending data is flushed to the output, and the cache
      file is closed and removed. The destination OutputStream is not closed.

But the close() does not remove cache file.
Though VM does remove the file on exit, the spec. says that file
must be removed by the close() function.
Note, that FileCacheImageInputStream.close() does remove the cache file.
=========================== a.java ==============================
import java.io.*;
import javax.imageio.stream.*;

public class a {
    public static void main (String argv[]) throws Exception {
        File f = new File("mytmpdir");
        if( !f.isDirectory() && !f.mkdir() ) {
            System.out.println("Error: Can not create temporary directory");
            return;
        }
    
        OutputStream ostream = new ByteArrayOutputStream();
        FileCacheImageOutputStream fcios = new FileCacheImageOutputStream(ostream, f);

        File[] before = f.listFiles();
        fcios.close();
        File[] after = f.listFiles();
    
        if( after.length + 1 != before.length ) {
            System.out.println("Failed: temp file was not deleted:\n==== before ====");
            for( int i = 0; i < before.length; i++ ) {
                System.out.println(before[i].toString());
            }

            System.out.println("==== after ====");
            for( int i = 0; i < after.length; i++ ) {
                System.out.println(after[i].toString());
            }
        } else {
            System.out.println("Passed");
            f.delete();
        }
    }
}
===================== log =======================
% java -version
java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b59)
Java HotSpot(TM) Client VM (build 1.4.0-beta-b59, mixed mode)
% java a
Failed: temp file was not deleted:
==== before ====
mytmpdir/imageio47588.tmp
==== after ====
mytmpdir/imageio47588.tmp


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

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