anchor.diff:  // create an index with a percolator field with the name 'query':
   client.admin().indices().prepareCreate("myIndexName")
                           .addMapping("query", "query", "type=percolator")
  +                        .addMapping("docs", "content", "type=text")
                           .get();
   
   //This is the query we're registering in the percolator
  
positive.code: --------------------------------------------------
  //Build a document to check against the percolator
  XContentBuilder docBuilder = XContentFactory.jsonBuilder().startObject();
  docBuilder.field("doc").startObject(); //This is needed to designate the document
  docBuilder.field("content", "This is amazing!");
  docBuilder.endObject(); //End of the doc field
  docBuilder.endObject(); //End of the JSON root object
  // Percolate, by executing the percolator query in the query dsl:
  SearchResponse response = client().prepareSearch("myIndexName")
          .setQuery(QueryBuilders.percolateQuery("query", ""myDocumentType", docBuilder.bytes()))
          .get();
  //Iterate over the results
  for(SearchHit hit : response.getHits()) {
  
negative.code:         .startObject()
              .field("query", qb) // Register the query
          .endObject())
      .setRefreshPolicy(RefreshPolicy.IMMEDIATE) // Needed when the query shall be available immediately
      .get();
  --------------------------------------------------
  
  