GraphQL failure for the miner field in a block

[roderik]

Description

An IBFTv2 network:

curl -X POST --data '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["1699055", true],"id":1}' https://xxx
{
  "jsonrpc" : "2.0",
  "id" : 1,
  "result" : {
    "number" : "0x19ecef",
    "hash" : "0x265504d25ba18eb1d12508db876432267774089419ab3caab2bcd352641260bd",
    "parentHash" : "0x2af32151398458420d8245f2ba97026e53515c5965bbcce4d2a14d6e7713cdda",
    "nonce" : "0x0000000000000000",
    "sha3Uncles" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
    "logsBloom" : "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
    "transactionsRoot" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    "stateRoot" : "0xd72609c05d014eeab7914d30ed74d80424a94833c91f0fbc1b39d59db11ab0eb",
    "receiptsRoot" : "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    "miner" : "0xe8e710e5447d07271546d190baba1ff29fd98e45",
    "difficulty" : "0x1",
    "totalDifficulty" : "0x19ecf0",
    "extraData" : "0xf8daa0444f4e27542050414e4943202120484f444c2c20484f444c2c20484f444c2021ea94c450fc44aa2284ed4477bdbbd7536932458a1efd94e8e710e5447d07271546d190baba1ff29fd98e45808400000000f886b8415c2a31964b83aa885791cca9538d46fff948387a47f3f808ee1b519e77d835937a87dec9179c02fae1ca23fbb3aac5ea61ba2a1208b126c105eaa025a1b5278501b8419d8b3a1408fef35905d7c0ec160e1fc6d95906b685740337cffbb832217685ba4739c4113e38a0c3992114345415d04b6ea5a83b6ed8418e1d63129adac8c1ab01",
    "size" : "0x2e0",
    "gasLimit" : "0x1fffffffffffff",
    "gasUsed" : "0x0",
    "timestamp" : "0x5f2502f0",
    "uncles" : [ ],
    "transactions" : [ ]
  }
}

The equivalent GraphQL query

query getBlock($blockNumber: Long!) {
  block(number: $blockNumber) {
    number
    hash
    parent {
      hash
    }
    nonce
    ommerHash
    logsBloom
    transactionsRoot
    stateRoot
    receiptsRoot
    miner {
      address
    }
    difficulty
    totalDifficulty
    extraData
    gasLimit
    gasUsed
    timestamp
    ommers {
      hash
    }
    transactions {
      hash
    }
  }
}

Returns the following error:

{
  "errors" : [ {
    "message" : "Exception while fetching data (/block/miner/address) : java.lang.reflect.InvocationTargetException",
    "locations" : [ {
      "line" : 15,
      "column" : 7
    } ],
    "path" : [ "block", "miner", "address" ],
    "extensions" : {
      "classification" : "DataFetchingException"
    }
  } ],
  "data" : null
}

Removing the miner gives me the data:

{
  "data": {
    "block": {
      "number": 1699055,
      "hash": "0x265504d25ba18eb1d12508db876432267774089419ab3caab2bcd352641260bd",
      "parent": {
        "hash": "0x2af32151398458420d8245f2ba97026e53515c5965bbcce4d2a14d6e7713cdda"
      },
      "nonce": "0x0000000000000000",
      "ommerHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
      "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
      "transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
      "stateRoot": "0xd72609c05d014eeab7914d30ed74d80424a94833c91f0fbc1b39d59db11ab0eb",
      "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
      "difficulty": "0x1",
      "totalDifficulty": "0x19ecf0",
      "extraData": "0xf8daa0444f4e27542050414e4943202120484f444c2c20484f444c2c20484f444c2021ea94c450fc44aa2284ed4477bdbbd7536932458a1efd94e8e710e5447d07271546d190baba1ff29fd98e45808400000000f886b8415c2a31964b83aa885791cca9538d46fff948387a47f3f808ee1b519e77d835937a87dec9179c02fae1ca23fbb3aac5ea61ba2a1208b126c105eaa025a1b5278501b8419d8b3a1408fef35905d7c0ec160e1fc6d95906b685740337cffbb832217685ba4739c4113e38a0c3992114345415d04b6ea5a83b6ed8418e1d63129adac8c1ab01",
      "gasLimit": 9007199254740991,
      "gasUsed": 0,
      "timestamp": "0x5f2502f0",
      "ommers": [],
      "transactions": []
    }
  }
}

In other spots, like in transactions or receipts, from { address } etc works like expected

Versions (Add all that apply)

• Software version: [besu --version] 1.4.6 on k8s