BufferedImage goes black when used as method parmeter - java

I've got what seems like a very simple section of code, and I can't work out for the life of me why it's not working.
I have a method that listens for image updates from a camera and when it recieves them it calls another segment of code.
My listener is:
public void imageUpdated(BufferedImage image) {
if (null != video) {
video.setImage(image);
}
File outputfile = new File("savedingui.jpg");
try {
ImageIO.write(image, "jpg", outputfile);
} catch (IOException e) {
e.printStackTrace();
}
Which happily saves the correct image to disc. However when I save the image again from the setImage method (called on line 3 of the listener code)
public void setImage(BufferedImage image) {
File outputfile = new File("savedorig.jpg");
try {
ImageIO.write(image, "jpg", outputfile);
} catch (IOException e) {
e.printStackTrace();
}
It now just saves a jpeg of black. But the right sized square of black.
Any clues as to whats going on?


I can not reproduce your issue with the following source (which is basically copied from your question):
public static void imageUpdated(BufferedImage image) {
setImage(image);
File outputfile = new File("savedingui.jpg");
try {
ImageIO.write(image, "jpg", outputfile);
} catch (IOException e) {
e.printStackTrace();
}
}
public static void setImage(BufferedImage image) {
File outputfile = new File("savedorig.jpg");
try {
ImageIO.write(image, "jpg", outputfile);
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws IOException {
BufferedImage image = ImageIO.read(new File("test.jpg"));
imageUpdated(image);
}
Is the same instance used somewhere else, e.g. camera writing updated data in it?

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