Unable to get Source filter while doing elastic search with spring boot class org.elasticsearch.search.builder.SearchSourceBuilder

It's note. Please check again and don't forget to save your modifications. Once updated, you should see:

{
  "took": 1,
  "timed_out": false,
  "_shards": {
    "total": 1,
    "successful": 1,
    "skipped": 0,
    "failed": 0
  },

instead of

{
"took": 1,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},