Please add installing contract examples

[Jiuhong-casperlabs]

Hello,

When installing contract I have java.nio.BufferOverflowException issue while it worked fine on previous version.
Can you add a such example please?

Thank you.

[Jiuhong-casperlabs]

Delegation has the same error java.nio.BufferOverflowException. Here is the code

package com.jh;

import java.io.File;
import java.io.InputStream;

import com.casper.sdk.helper.CasperValidatorHelper;
import com.casper.sdk.model.deploy.Deploy;
import com.casper.sdk.model.deploy.DeployResult;
import com.casper.sdk.model.key.PublicKey;
import com.casper.sdk.service.CasperService;
import com.syntifi.crypto.key.Ed25519PrivateKey;

import java.math.BigInteger;

public class TestDelegate {
    public static void main(String args[]) {
        Ed25519PrivateKey from = new Ed25519PrivateKey();
        try {
            // from
            File f = new File("/home/jh/keys/test1/secret_key.pem");
            String frompath = f.getPath();
            from.readPrivateKey(frompath);

            // validator public key
            PublicKey validator = PublicKey
                    .fromTaggedHexString("0109b48a169e6163078a07b6248f330133236c6e390fe915813c187c3f268c213e");
            // delegator public key
            PublicKey delegator = PublicKey
                    .fromTaggedHexString("0193b3800386aefe11648150f6779158f2c7e1233c8e9b423338eb71b93ae6c5a9");
            // wasm file
            String filePath = "wasm/contract.wasm";
            InputStream contractwasmIn = HowToUtils.getWasmIn(filePath);

            System.out.println("contractwasmIn=>" + contractwasmIn);
            byte[] wasmBytes = HowToUtils.readWasm(contractwasmIn);
            // build deploy
            Deploy deploy = CasperValidatorHelper.createValidatorDelegation(from, wasmBytes,
                    BigInteger.valueOf(2500000000L), validator, delegator, "casper-test");
            // send deploy
            final CasperService casperService = CasperService.usingPeer("94.130.10.55",
                    7777);
            DeployResult deployResult = casperService.putDeploy(deploy);
            // deploy hash
            System.out.println(deployResult.getDeployHash());
        } catch (Exception e) {
            System.out.println("err");
            System.out.println(e);
        }
    }
}