test/org/apache/pig/builtin/avro/data/json/recordsWithMapsOfArrayOfRecords.json

{"key" : "A",
 "value" : 1,
 "parameters" : {
   "firstParameter" : []
  }
}
{"key" : "B",
 "value" : 2,
 "parameters" : {}
}
{"key" : "C",
 "value" : 3,
 "parameters" : {
     "firstParameter" : [
       {"k" : "c", "v" : 3},
       {"k" : "c1", "v" : 4},
       {"k" : "c2", "v" : 5}
     ],
     "secondParameter" : [
       {"k" : "c3", "v" : 6},
       {"k" : "c4", "v" : 7},
       {"k" : "c5", "v" : 8}
     ]
  }
}