public short getShort(String key, Filter filter) { Short value = getShort(key, filter, null); assertNotNull(key, value); return value.shortValue();
public short getShort(String key) { return properties.getShort(key);
    public short getShort(String key, Filter filter) {        Short value = getShort(key, filter, null);                assertNotNull(key, value);        return value.shortValue();    }