J2SE Version (please include all output from java -version flag):
 java version "1.6.0-ea"
  Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-ea-b55)
  Java HotSpot(TM) Client VM (build 1.6.0-ea-b55, mixed mode, sharing)

Does this problem occur on J2SE 1.4.x or 5.0.x ? Yes / No (pick one)
  don't know


Bug Description:
   javax.imageio.ImageIO possible handle leak in some methods.
   "High level" methods to read/write files do not close streams
   in case of exceptions. See below.

Steps to Reproduce (be specific):
   For example the method javax.imageio.ImageIO.write(RenderedImage,String,File)
   contains the following code:

public static boolean write(RenderedImage im, String formatName, File output)
    throws IOException {
...
      ImageOutputStream stream = null;
    try {
        output.delete();
stream = createImageOutputStream(output);
    } catch (IOException e) {
        throw new IIOException("Can't create output stream!", e);
    }
    boolean val = write(im, formatName, stream);
    stream.close(); // not called if above method throws exception!
    return val;
}

   If write() throws an exception, stream.close(); will never be called and
   the underlying operating system handle will never be closed.