public float getFloat(String key, Filter filter) { Float value = getFloat(key, filter, null); assertNotNull(key, value); return value.floatValue();
public float getFloat(String key) { return properties.getFloat(key);
    public float getFloat(String key, Filter filter) {        Float value = getFloat(key, filter, null);        assertNotNull(key, value);        return value.floatValue();    }