public int getKeyCount() {
        if (!inited)
            throw new IllegalStateException("Input not initialized.");

        return 0;
    }
DummyKeyInput as an implementation of <code>KeyInput</code> that raises no
input events.

@author Kirill Vainer.
jme3-core/src/main/java/com/jme3/input/dummy/DummyKeyInput.java