working with Image classes

[Thomas Goorden]

Hi,
I was working on a class to automatically resize jpg's (for use in a servlet). It all works great in a command line program (Win2K) , but it doesn't seem to do work when I use it in a servlet and run it on a linux machine (apache; tomcat) within a servlet.

java.lang.NoClassDefFoundError: sun/awt/motif/MToolkit
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:124)
at java.awt.Toolkit$2.run(Toolkit.java:499)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:492)
at java.awt.Image.getScaledInstance(Image.java:136)
at resizeJPG.resize(resizeJPG.java:50)

The method code:

private static void resize( File inputFile, File outputFile, int width, int height) throws FileNotFoundException, IOException {
    FileInputStream inStream = new FileInputStream( inputFile );
    JPEGImageDecoder jpgDecod = JPEGCodec.createJPEGDecoder( inStream );
    BufferedImage inBuffer = jpgDecod.decodeAsBufferedImage();
    Image outImage = inBuffer.getScaledInstance( width , height , Image.SCALE_SMOOTH );
    BufferedImage outBuffer = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D biContext = outBuffer.createGraphics();
    biContext.drawImage(outImage, 0, 0, null);
    FileOutputStream outStream = new FileOutputStream( outputFile );
    JPEGImageEncoder jpgEncod = JPEGCodec.createJPEGEncoder( outStream );
    jpgEncod.encode(outBuffer);
}

I import : com.sun.image.codec.jpeg.*; java.awt.image.BufferedImage; java.awt.Graphics2D; java.awt.Image;
Appearantly the Imaging toolkit uses native methodes, which might be the problem. Is there a way around this? Or maybe you know a better way to tackle the resizing problem?
Thanks,
Thomas

[Manfred Leonhardt]

Hi,
It seems that you need to include sun.awt.Motif package in your jar file or at least place it on your server.
Regards,
Manfred.