Collection<Object> labelValues = result.getFieldValues(topicUrisField);
Collection<Object> textValues = result.getFieldValues(exampleTextField);
if (textValues == null) {
continue;
}
items.add(new Example(exampleId, labelValues, textValues));
}
}
} catch (SolrServerException e) {
String msg = String.format(
"Error while fetching positive examples for topics ['%s'] on Solr Core '%s'.",