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>(FileImageOutputStream.java:44) at com.sun.imageio.spi.FileImageOutputStreamSpi.createOutputStreamInstance(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)