executable jar error

[PhiberOptik]

Hey guys
I'm trying to export my game from eclipse to an executable jar. When I launch it in eclipse it works perfectly. When I export it nothing happens and when I launch it through console i get this:

http://img697.imageshack.us/img697/899/errordc.png

and I have main class

public class main {
 public static void main (String[] args){
	 BlueHarvest bh = new BlueHarvest();
 }
}

also my manifest points towards this class.

[gangsta1903]

its hard to tell what the problem is. Maybe its because of your eclipse installation or another problem.

If you try to create your jar file by yourself rather than exporting in eclipse, you can better understand the problem.

http://java.sun.com/docs/books/tutorial/deployment/jar/index.html

[Ezzaral]

Try executing it with java -jar BlueHarvest.jar . If it still fails you probably need to fix up the manifest to specify the main-class attribute.

[PhiberOptik]

okay the java -jar something.jar helped alot. Now I have one more question. Its giving me another error which says that image icon variable is a null pointer. I think this could be why:

public void getNPCImage(){
		ImageIcon ii = new ImageIcon(this.getClass().getResource(character[charDirection]));
		image = ii.getImage();

		width = image.getWidth(null);
		heigth = image.getHeight(null);
	}
	public void spriteSetup(){
		//Forward
		character[0] = "../sprites/"+charChoice+"/forward_stand.png";
		character[1] = "../sprites/"+charChoice+"/forward_left.png";
		character[2] = "../sprites/"+charChoice+"/forward_right.png";
		//Left
		character[3] = "../sprites/"+charChoice+"/left_stand.png";
		character[4] = "../sprites/"+charChoice+"/left_left.png";
		character[5] = "../sprites/"+charChoice+"/left_right.png";
		//Back
		character[6] = "../sprites/"+charChoice+"/back_stand.png";
		character[7] = "../sprites/"+charChoice+"/back_left.png";
		character[8] = "../sprites/"+charChoice+"/back_right.png";
		//Right
		character[9] = "../sprites/"+charChoice+"/right_stand.png";
		character[10] = "../sprites/"+charChoice+"/right_left.png";
		character[11] = "../sprites/"+charChoice+"/right_right.png";
	}

but I don't know how I should fix...unlesss I should load up all the images. Im going to try that now I guesss.

this didn't work (example below) it works fine while still in eclipse but when exported to jar same error:

public void getCharImage(){
		//ImageIcon ii = new ImageIcon(this.getClass().getResource(character[charDirection]));
		for(int i =0; i < 12; i++){
			chars[i] = new ImageIcon(this.getClass().getResource(character[i]));
		}
		image = chars[charDirection].getImage();

		width = image.getWidth(null);
		heigth = image.getHeight(null);
	}
	public void charSetup(){
		//Forward
		character[0] = "../sprites/"+charChoice+"/forward_stand.png";
		character[1] = "../sprites/"+charChoice+"/forward_left.png";
		character[2] = "../sprites/"+charChoice+"/forward_right.png";
		//Left
		character[3] = "../sprites/"+charChoice+"/left_stand.png";
		character[4] = "../sprites/"+charChoice+"/left_left.png";
		character[5] = "../sprites/"+charChoice+"/left_right.png";
		//Back
		character[6] = "../sprites/"+charChoice+"/back_stand.png";
		character[7] = "../sprites/"+charChoice+"/back_left.png";
		character[8] = "../sprites/"+charChoice+"/back_right.png";
		//Right
		character[9] = "../sprites/"+charChoice+"/right_stand.png";
		character[10] = "../sprites/"+charChoice+"/right_left.png";
		character[11] = "../sprites/"+charChoice+"/right_right.png";

	}

[BestJewSinceJC]

Try adding a leading "/" in the call to getResource()

[PhiberOptik]

Try adding a leading "/" in the call to getResource()

Tried it, didnt work just gave null pointer...even in eclipse. I have no experience with utilizing resources in jar files. So im probably missing something obvious.

[Ezzaral]

Make sure that whatever build script that you're using is including those images in the jar file. This link might help with the getResource() pathing considerations: http://java.sun.com/docs/books/tutorial/uiswing/components/icon.html#getresource