OutOfMemoryError caused in a loop at new BufferedImage

Have increase the memory size but that only increase the images send and received about x3, so the really solution is if there is a way to manually de allocate the memory without the gc or really force gc to do so…if that a no, could there be some modification that could FIX this???
thanks

Code :

//server
        int number=0;
            try {
 
                while(true){
                     ImageIcon imageIcon = (ImageIcon) ObjectInputStream.readObject();
                     System.out.println("New image recieved");
                     BufferedImage bim =new BufferedImage(imgIcon.getIconWidth(), imgIcon.getIconHeight(), BufferedImage.TYPE_INT_RGB);
                     ImageIO.write(bim, "JPG", new File("image"+ number++ +".jpg");
				Runtime runtime= Runtime.getRuntime();
				runtime.gc();			//doesnt work
		}
	}cartch(IOException ex){
//
	}
 
//client
	screenDim=Toolkit.getDefaultToolkit().getScreenSize();
        scrRect=new Rectangle(screenDim);
 
        while(true){
            bufrdImage=robot.createScreenCapture(Toolkit.getDefaultToolkit().getScreenSize());
            imgIcon=new ImageIcon(bufrdImage);
 
            try {
                client.oos.writeObject(imgIcon);
                System.out.println("image Sent");
            } catch (Exception e) {
            }
            bufrdImage = null;
            imgIcon = null;
				Runtime runtime= Runtime.getRuntime();
				runtime.gc();		//to de allocate bufrdImage, imgIcon but doesnt work
            try{
                Thread.sleep(1000);
            }catch(InterruptedException e){
            }
        }

any idea?