Sample contract is not deployed. Not enough gas

[StanislavMakarov]

Transfer transaction works OK, but deploy fails. What's wrong?
Source code:
ContractGasProvider contractGasProvider = new DefaultGasProvider();
try {

        contract = Greeter.deploy(
                web3j, credentials,
                contractGasProvider,
                "Hello!"
        ).send();
        contractAddress  = contract.getContractAddress();
        System.out.printf("Contract Address : " + contract.getContractAddress());
    } catch(Exception e){
        e.printStackTrace();
    }

08:34:34.908 [main] INFO org.web3j.sample.Application - Deploying smart contract
org.web3j.protocol.exceptions.TransactionException: Transaction has failed with status: 0x0. Gas used: 4300000. (not-enough gas?)
at org.web3j.tx.Contract.executeTransaction(Contract.java:290)
at org.web3j.tx.Contract.create(Contract.java:326)
at org.web3j.tx.Contract.deploy(Contract.java:355)
at org.web3j.tx.Contract.lambda$deployRemoteCall$7(Contract.java:449)
at org.web3j.protocol.core.RemoteCall.send(RemoteCall.java:30)
at org.web3j.sample.Application.run(Application.java:124)
at org.web3j.sample.Application.main(Application.java:67)
Exception in thread "main" java.lang.NullPointerException
at org.web3j.sample.Application.run(Application.java:144)
at org.web3j.sample.Application.main(Application.java:67)
Disconnected from the target VM, address: '127.0.0.1:62773', transport: 'socket'

[JoaquimLey]

This might look like a studio and obvious question(s) but...

• Does the account on your credentials object has enough Eth for the GAS_PRICE * GAS_LIMIT set for the Tx?

ref: #4

[iikirilov]

@JoaquimLey this is not the issue. This error means that the contract deployment has gone over the gas limit.

@StanislavMakarov have you modified the contract constructor method? What network are you connecting to?

[JoaquimLey]

@iikirilov Thanks for correcting me 🙏
That's the Tx I was referring to, the actual deployment but I see how confusing might wording might've been :).