{
  "exception_class": {
    "$resolver": "exception",
    "field": "className"
  },
  "exception_message": {
    "$resolver": "exception",
    "field": "message"
  },
  "stacktrace": {
    "$resolver": "exception",
    "field": "stackTrace",
    "stringified": true
  },
  "line_number": {
    "$resolver": "source",
    "field": "lineNumber"
  },
  "class": {
    "$resolver": "source",
    "field": "className"
  },
  "@version": 1,
  "source_host": "${hostName}",
  "message": {
    "$resolver": "message",
    "stringified": true
  },
  "thread_id": {
    "$resolver": "thread",
    "field": "id"
  },
  "thread_name": {
    "$resolver": "thread",
    "field": "name"
  },
  "thread_priority": {
    "$resolver": "thread",
    "field": "priority"
  },
  "@timestamp": {
    "$resolver": "timestamp"
  },
  "level": {
    "$resolver": "level",
    "field": "name"
  },
  "file": {
    "$resolver": "source",
    "field": "fileName"
  },
  "method": {
    "$resolver": "source",
    "field": "methodName"
  },
  "logger_fqcn": {
    "$resolver": "logger",
    "field": "fqcn"
  },
  "logger_name": {
    "$resolver": "logger",
    "field": "name"
  },
  "end_of_batch": {
    "$resolver": "endOfBatch"
  },
  "lookup_test_key": "${sys:lookup_test_key}"
}