Java DSL query DSL different results

when i run this query, i correctly get only the NUM_OF_WKS field back

{"filter":{"exists":{"field":"NUM_OF_WKS"}}, "fields" : ["NUM_OF_WKS"],"facets" :
{"Number_of_Weeks_Facet":{"terms":{"field":"NUM_OF_WKS","size":"1"} }}}

but when i run the same query thru a java search, i get NULL for that field

final SearchResponse response = client
.search(new SearchRequest("scnprobldir3a")
.types("dimItem")
.source("{"filter":{"exists":{"field":"NUM_OF_WKS"}}, * "fields"
: ["NUM_OF_WKS"],* "facets" :
{"Number_of_Weeks_Facet":{"terms":{"field":"NUM_OF_WKS","size":"100"}
}}}"))
.actionGet();

Can anyone help???

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