public void save(String path)
	{
		File file = new File(path);
		
		try
		{
			ImageIO.write(this.bI, ".png", file);
		}
		catch (IOException e1)
		{
			System.out.println("File could not be written.");
		}	
	}

java.io.FileNotFoundException: E:       est.png (Die Syntax f³r den Dateinamen,
Verzeichnisnamen oder die Datentrõgerbezeichnung ist falsch)
        at java.io.RandomAccessFile.open(Native Method)
        at java.io.RandomAccessFile.<init>(RandomAccessFile.java:212)
        at javax.imageio.stream.FileImageOutputStream.<init>(FileImageOutputStre
am.java:44)
        at com.sun.imageio.spi.FileImageOutputStreamSpi.createOutputStreamInstan
ce(FileImageOutputStreamSpi.java:37)
        at javax.imageio.ImageIO.createImageOutputStream(ImageIO.java:391)
        at javax.imageio.ImageIO.write(ImageIO.java:1483)
        at Texture.save(Texture.java:44)
        at PinholeCamera.render(PinholeCamera.java:68)
        at JavRay.main(JavRay.java:35)
Exception in thread "main" java.lang.IllegalArgumentException: output == null!
        at javax.imageio.ImageIO.write(ImageIO.java:1435)
        at javax.imageio.ImageIO.write(ImageIO.java:1488)
        at Texture.save(Texture.java:44)
        at PinholeCamera.render(PinholeCamera.java:68)
        at JavRay.main(JavRay.java:35)