Oh ok then that must no be the culprit then. I got this logs from our application server but I'm not sure if this is useful:
Caused by: org.apache.solr.client.solrj.SolrServerException: org.apache.http.ParseException: Invalid content type: at org.apache.solr.client.solrj.impl.LBHttpSolrServer.request(LBHttpSolrServer.java:497) at org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(AbstractUpdateRequest.java:124) at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:68) at org.springframework.data.solr.core.SolrTemplate$7.doInSolr(SolrTemplate.java:223) at org.springframework.data.solr.core.SolrTemplate$7.doInSolr(SolrTemplate.java:220) at org.springframework.data.solr.core.SolrTemplate.execute(SolrTemplate.java:132) ... 12 more Caused by: org.apache.http.ParseException: Invalid content type: at org.apache.http.entity.ContentType.parse(ContentType.java:233) at org.apache.solr.client.solrj.impl.HttpSolrServer.executeMethod(HttpSolrServer.java:496) at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:210) at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:206) at org.apache.solr.client.solrj.impl.LBHttpSolrServer.request(LBHttpSolrServer.java:483) -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html