protected void _init(final IDatatypeURIResolver resolver,final ILexiconConfiguration<BigdataValue> config,final Collection<IExtension<? extends BigdataValue>> extensions){
}

protected void _init ( final IDatatypeURIResolver resolver , final ILexiconConfiguration < BigdataValue > config , final Collection < IExtension < ? extends BigdataValue > > extensions ) { }
give subclasses a chance to add extensions .
