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dont allow negative values to enter tx when send max true

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This commit is contained in:
Craig Raw 2021-03-04 12:59:49 +02:00
parent b84aa2e7cb
commit c084a0de7e
1 changed files with 5 additions and 1 deletions
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6
src/main/java/com/sparrowwallet/drongo/wallet/Wallet.java
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@ -497,11 +497,15 @@ public class Wallet {
//If sending all selected utxos, set the recipient amount to equal to total of those utxos less the no change fee
long maxSendAmt = totalSelectedAmt - noChangeFeeRequiredAmt;
if(maxSendAmt < 0) {
throw new InsufficientFundsException("Not enough combined value in selected UTXOs for fee of " + noChangeFeeRequiredAmt);
}
Optional<Payment> optMaxPayment = payments.stream().filter(payment -> payment.isSendMax()).findFirst();
if(optMaxPayment.isPresent()) {
Payment maxPayment = optMaxPayment.get();
maxSendAmt = maxSendAmt - payments.stream().filter(payment -> !maxPayment.equals(payment)).map(Payment::getAmount).mapToLong(v -> v).sum();
if(maxPayment.getAmount() != maxSendAmt) {
if(maxSendAmt > 0 && maxPayment.getAmount() != maxSendAmt) {
maxPayment.setAmount(maxSendAmt);
totalPaymentAmount = payments.stream().map(Payment::getAmount).mapToLong(v -> v).sum();
continue;