Web3J library is not supporting in groovy script. I have to send transaction through groovy script and check test load in JMETER

I have imported all web3J library and using tried using java_version 16,17 and 20. Every time I am facing issue. When I compiled that script in VSCode. I am facing the same issue. Can someone please help me with groovy script?

import org.web3j.protocol.Web3j
import org.web3j.protocol.core.DefaultBlockParameterName
import org.web3j.protocol.http.HttpService
import org.web3j.tx.RawTransactionManager
import org.web3j.tx.Transfer
import org.web3j.utils.Convert
import org.web3j.protocol.core.methods.response.TransactionReceipt
import org.web3j.crypto.Credentials

       def web3 = Web3j.build(new HttpService("API_URL"))
       String PRIVATE_KEY = 'b33ccb143751577968f32575ee690eb3873e49f27935708dbdea52fe36b6ba76'
       RawTransactionManager rawTransactionManager = new RawTransactionManager(web3, Credentials.create(PRIVATE_KEY))
       Transfer transfer = new Transfer(web3, rawTransactionManager)
       println "transfer: ${transfer}"


       TransactionReceipt receipt = transfer.sendFunds("0x7de3280c66ecee8f4cbd8fb78850229d8f10d22f", (Convert.toWei("1", Convert.Unit.ETHER).toBigInteger()), Convert.Unit.WEI, 30000, 1000000108).send()

       println("Transaction Hash: ${receipt.transactionHash}")
       println("Block Hash: ${receipt.blockHash}")
       println("Block Number: ${receipt.blockNumber}")
       println("Gas Used: ${receipt.gasUsed}")
       println("Contract Address: ${receipt.contractAddress}")
      

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