[SmartContracts.js] Line needs to be evaluated for null before calling 'Object.keys'

[4Ykw]

https://github.com/hive-engine/steemsmartcontracts/blob/0bb3c76955a1cda0636f6716ff31a2a847f42c1f/libs/SmartContracts.js#L543

Not yet known, but in some conditions, the VM is null and the following error could appear on the log:

2022-07-18 03:52:57 error: [Blockchain] ERROR DURING CONTRACT EXECUTION:  TypeError: Cannot convert undefined or null to object
    at Function.keys (<anonymous>)
    at Function.getJSVM (/home/user/steemsmartcontracts/libs/SmartContracts.js:543:14)
    at /home/user/steemsmartcontracts/libs/SmartContracts.js:558:33
    at new Promise (<anonymous>)
    at Function.runContractCode (/home/user/steemsmartcontracts/libs/SmartContracts.js:557:12)
    at Function.executeSmartContract (/home/user/steemsmartcontracts/libs/SmartContracts.js:493:42)
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
    at async Block.processTransaction (/home/user/steemsmartcontracts/libs/Block.js:263:19)
    at async Block.produceBlock (/home/user/steemsmartcontracts/libs/Block.js:132:7)
    at async /home/user/steemsmartcontracts/plugins/Blockchain.js:92:9

2022-07-18 03:52:57 error: [Blockchain] {
  refHiveBlockNumber: 66190261,
  transactionId: '64471f5b09ac71815bdc6a601282df22f83df6a2',
  sender: 'ricksens85',
  contract: 'market',
  action: 'sell',
  payload: '{"symbol":"SPS","quantity":"274.29500000","price":"0.11095121","isSignedWithActiveKey":true}',
  executedCodeHash: '5e327ab66bc4bc780892b2c80856b3b595b792ac31ab0c0c4eb1498e51550e08815ad74975ef2099fb0d332f42eb5503e27c52c78002f3d408fb0ca67bc37edb',
  hash: '413868a1198a7b8074da6aa4400c8245a341da0c8c63feafd56629ea626dceaf',
  databaseHash: 'c542f6f0b54578e6a316a5af915d161a7f974293b4269a04f8266bd5d752e10f',
  logs: '{"events":[{"contract":"tokens","event":"transferToContract","data":{"from":"ricksens85","to":"market","symbol":"SPS","quantity":"274.29500000"}}]}'
}

2022-07-18 03:52:57 error: [Blockchain] Transaction {
  refHiveBlockNumber: 66190261,
  transactionId: '64471f5b09ac71815bdc6a601282df22f83df6a2',
  sender: 'ricksens85',
  contract: 'market',
  action: 'sell',
  payload: '{"symbol":"SPS","quantity":"274.29500000","price":"0.11095121","isSignedWithActiveKey":true}',
  executedCodeHash: '',
  hash: '383bc011e2f8e4e21ee16918f17dbc29715add27286db07b12515a0f3486270c',
  databaseHash: '7ad7fddacff80400efee6f04b4b6fbb71b00d10447d748fd75d2001c386992f5',
  logs: '{"errors":["TypeError: Cannot convert undefined or null to object"]}'
}

2022-07-18 03:52:57 error: [Blockchain] Error: tx hash mismatch with api
    at Block.produceBlock (/home/user/steemsmartcontracts/libs/Block.js:140:17)
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
    at async /home/user/steemsmartcontracts/plugins/Blockchain.js:92:9
    at async producePendingTransactions (/home/user/steemsmartcontracts/plugins/Blockchain.js:91:7)
    at async produceNewBlockSync (/home/user/steemsmartcontracts/plugins/Blockchain.js:144:5)

2022-07-18 03:52:57 error: [Blockchain] (node:3040128) UnhandledPromiseRejectionWarning: Error: tx hash mismatch with api
    at Block.produceBlock (/home/user/steemsmartcontracts/libs/Block.js:140:17)
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
    at async /home/user/steemsmartcontracts/plugins/Blockchain.js:92:9
    at async producePendingTransactions (/home/user/steemsmartcontracts/plugins/Blockchain.js:91:7)
    at async produceNewBlockSync (/home/user/steemsmartcontracts/plugins/Blockchain.js:144:5)

[Rishi556]

This happens with higher versions of vm2.