dom deferredcdatasectionimpl cdatasectionimpl deferrednode serialversionuid l fnodeindex deferredcdatasectionimpl deferreddocumentimpl ownerdocument nodeindex ownerdocument fnodeindex nodeindex needssyncdata getnodeindex fnodeindex synchronizedata needssyncdata deferreddocumentimpl ownerdocument deferreddocumentimpl this.ownerdocument data ownerdocument.getnodevaluestring fnodeindex