Float Buffer Help please

[scorpion]

I don't get this to work properly! Tells me:
"Number of remaining buffer elements is 0, must be at least 4"

Could someone help?

FloatBuffer lightAmbient1 = BufferUtils.createFloatBuffer(4).put(new float[] { 0.5f, 0.5f, 0.5f, 1.0f });

GL11.glLightModel(GL11.GL_LIGHT_MODEL_AMBIENT, lightAmbient1);

[Matzon]

you need a lightAmbient1.flip(); before using it