What causes this?
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/http/impl/client/CloseableHttpClient
at
org.apache.solr.client.solrj.impl.HttpSolrClient.<init>(HttpSolrClient.java:209)
at
org.apache.solr.client.solrj.impl.HttpSolrClient$Builder.build(HttpSolrClient.java:874)
The code is:
return new HttpSolrClient.Builder(urlString).build();
After connecting to a Solr server, should I call solrServer.close();
or
should I leave the connection open until the entire index is built?
