数据同步任务报The main method caused an error: null

[kannon007]

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taier 日志

任务配置为纯钧基础的stream demo

{
  "job": {
    "content": [
      {
        "reader": {
          "parameter": {
            "column": [
              {
                "name": "id",
                "type": "id"
              },
              {
                "name": "name",
                "type": "string"
              },
              {
                "name": "content",
                "type": "string"
              }
            ],
            "sliceRecordCount": [
              "30"
            ],
            "permitsPerSecond": 1
          },
          "table": {
            "tableName": "sourceTable"
          },
          "name": "streamreader"
        },
        "writer": {
          "parameter": {
            "column": [
              {
                "name": "id",
                "type": "id"
              },
              {
                "name": "name",
                "type": "string"
              }
            ],
            "print": true
          },
          "table": {
            "tableName": "sinkTable"
          },
          "name": "streamwriter"
        },
        "transformer": {
          "transformSql": "select id,name from sourceTable where CHAR_LENGTH(name) < 50 and CHAR_LENGTH(content) < 50"
        }
      }
    ],
    "setting": {
      "errorLimit": {
        "record": 100
      },
      "speed": {
        "bytes": 0,
        "channel": 1,
        "readerChannel": 1,
        "writerChannel": 1
      }
    }
  }
}