I have the following basic code:
public void simpleInitApp() {
Box b = new Box(1, 1, 1);
Geometry geom = new Geometry("Box", b);
Texture cube1Tex = assetManager.loadTexture(
"/home/thijsglados/codes/3/assets/Textures/map/oldParchment.jpg");
Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
mat.setTexture("ColorMap", cube1Tex);
geom.setMaterial(mat);
rootNode.attachChild(geom);
}
which is supposed to simply attach a texture to the cube loaded from Textures/map/oldParchment.jpg
My resource setup is as following: 
running this gives the following error:
com.jme3.asset.AssetNotFoundException: /home/glados/codes/3/assets/Textures/map/oldParchment.jpg (Flipped) (Mipmapped)
at com.jme3.asset.DesktopAssetManager.loadAsset(DesktopAssetManager.java:283)
at com.jme3.asset.DesktopAssetManager.loadTexture(DesktopAssetManager.java:346)
at com.jme3.asset.DesktopAssetManager.loadTexture(DesktopAssetManager.java:356)
at mygame.Main.simpleInitApp(Main.java:27)
at com.jme3.app.SimpleApplication.initialize(SimpleApplication.java:226)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.initInThread(LwjglAbstractDisplay.java:130)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:207)
at java.lang.Thread.run(Thread.java:744)
Anybody know what I'm doing wrong?