Converting an array of bytes to an image

Question

I think this is the right forum for my question.
This code comes from the J2ME side of my application. It reads in an int from my server, and if its over a certain length, I can tell its an image so i can decode it from an array of bytes back into an image, but it throws an IllegalArgument Exception on image = Image.createImage(b,0,length);
I've decoded the byte array before it gets sent and convereted it back into an image and that works, and ive run the debugger and the array is full of numbers on the J2ME side of the app, but the call to createImage, just keeps throwing this exception and i can't find an answer. If you need anymore code, I'll post it.
int l = in.readInt();
imageArray = new ImageItem[l];
for(int i = 0; i < imageArray.length; i++){
byte[] b = null;
int length = in.readInt();
System.out.println("length = " + length);
if(length < 10) {
imageArray[i] = null;
System.out.println("null image");
} else {
b = new byte[length];
in.readFully(b,0,length);
System.out.println("image not null");
Image image = Image.createImage(b,0,length);
System.out.println("hit");
ImageItem imageItem = new ImageItem("null", image, 0, "null");
imageArray[i] = imageItem;
If anyone can tell me how to indent the code, i would appreciate it, it looks indented when i post it my side.
Message was edited by:
trisonetwo
Message was edited by:
trisonetwo

Answer 1

If it works before sending then check your code for sending the image.
Also you can compare the byte array before sending with the array which was received at the other end.
For indent and syntex highliting use [ c o d e ] and [ / c o d e ] tags (without spaces)
Ex:-
int l = in.readInt();
imageArray = new ImageItem[l];
for(int i = 0; i < imageArray.length; i++){
   byte[] b = null;
   int length = in.readInt();
   System.out.println("length = " + length);
   if(length < 10) {
      imageArray = null;
      System.out.println("null image");
   } else {
      b = new byte[length];
      in.readFully(b,0,length);
      System.out.println("image not null");
      Image image = Image.createImage(b,0,length);
      System.out.println("hit");
      ImageItem imageItem = new ImageItem("null", image, 0, "null");
     imageArray = imageItem;
}