Data couldn't be fetched from Nerd's web service for certain Id's

[tantikristanti]

The class 'MainPreannotation' is a class to make a class prediction of a list of Wikidata Ids in a file 'data/csv/NewElements.csv'. There are some bugs that the appeared and stop the process of prediction because the data couldn't be fetched from Nerd's web service for certain Id's even though the result can be seen exist from 'http://nerd.huma-num.fr/nerd/service/kb/concept/Q[number]'. In order to test it, it has been created a 'NewElements.csv' file that contains Ids from Q1 until Q2000, the process of prediction will stop because it could't fetched 8 Ids : Q31, Q39, Q153, Q678, Q837, Q1007, Q1041, Q1697. The error will be something like

12:02:01.830 [main] DEBUG org.apache.http.impl.conn.PoolingHttpClientConnectionManager - Connection released: [id: 0][route: {}->http://nerd.huma-num.fr:80][total kept alive: 1; route allocated: 1 of 2; total allocated: 1 of 20]
java.lang.ClassCastException: org.json.simple.JSONObject cannot be cast to java.lang.String

This issue is to look at the cause of this error from Nerd-Kid side.