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Transaction: replace Guava Lists.reversed() with JDK equivalent

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Sean Gilligan 2023-03-25 20:15:03 -07:00 • committed by Andreas Schildbach
parent c5faecf3b6
commit 37a06b150f
1 changed files with 8 additions and 7 deletions
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15
core/src/main/java/org/bitcoinj/core/Transaction.java
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@ -18,7 +18,6 @@
package org.bitcoinj.core;
import com.google.common.base.MoreObjects;
import com.google.common.collect.Lists;
import com.google.common.math.IntMath;
import org.bitcoinj.base.Address;
import org.bitcoinj.base.Coin;
@ -1737,12 +1736,14 @@ public class Transaction extends ChildMessage {
/** Loops the outputs of a coinbase transaction to locate the witness commitment. */
public Sha256Hash findWitnessCommitment() {
checkState(isCoinBase());
for (TransactionOutput out : Lists.reverse(outputs)) {
Script scriptPubKey = out.getScriptPubKey();
if (ScriptPattern.isWitnessCommitment(scriptPubKey))
return ScriptPattern.extractWitnessCommitmentHash(scriptPubKey);
}
return null;
List<TransactionOutput> reversed = new ArrayList<>(outputs);
Collections.reverse(reversed);
return reversed.stream()
.map(TransactionOutput::getScriptPubKey)
.filter(ScriptPattern::isWitnessCommitment)
.findFirst()
.map(ScriptPattern::extractWitnessCommitmentHash)
.orElse(null);
}
/**