The insert shards code is as follows:
ModifiableSolrParams modParams = new ModifiableSolrParams(params);
modParams.set("shards", shards);
rb.req.setParams(modParams);
Where shards is a valid single shard pseudo URL.
Stacktrace:
HTTP Status 500 - null java.lang.NullPointerException at
org.apache.solr.handler.component.QueryComponent.createRetrieveDocs(QueryComponent.java:497)
at
org.apache.solr.handler.component.QueryComponent.distributedProcess(QueryComponent.java:298)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:234)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:131)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1316) at
org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:342)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:245)
at
