Use JDK7+ Objects.hash() and equals() rather than the Guava variants.

The Guava variants are “deprecated” for JDK7+.

(cherry picked from commit 686a10ccd2c6bd06a7c785e1c637b611a6b8c0d0)
Signed-off-by: HashEngineering <hashengineeringsolutions@gmail.com>

Author: msgilligan

core/src/main/java/org/bitcoinj/core/Address.java

@@ -30,7 +30,7 @@
 import org.bitcoinj.script.Script.ScriptType;
 import org.bitcoinj.script.ScriptPattern;
 
-import com.google.common.base.Objects;
+import java.util.Objects;
 
 /**
  * <p>A Bitcoin address looks like 1MsScoe2fTJoq4ZPdQgqyhgWeoNamYPevy and is derived from an elliptic curve public key
@@ -284,7 +284,7 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(super.hashCode(), p2sh);
+        return Objects.hash(super.hashCode(), p2sh);
     }
 
     @Override

core/src/main/java/org/bitcoinj/core/BloomFilter.java

@@ -23,14 +23,14 @@
 import org.bitcoinj.script.ScriptPattern;
 
 import com.google.common.base.MoreObjects;
-import com.google.common.base.Objects;
 import com.google.common.collect.Lists;
 
 import java.io.IOException;
 import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Objects;
 
 import static com.google.common.base.Preconditions.checkArgument;
 import static java.lang.Math.*;
@@ -373,7 +373,7 @@ public synchronized boolean equals(Object o) {
 
     @Override
     public synchronized int hashCode() {
-        return Objects.hashCode(hashFuncs, nTweak, Arrays.hashCode(data));
+        return Objects.hash(hashFuncs, nTweak, Arrays.hashCode(data));
     }
 
     public final byte[] getData() {

core/src/main/java/org/bitcoinj/core/ECKey.java

@@ -25,7 +25,6 @@
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.MoreObjects;
-import com.google.common.base.Objects;
 import com.google.common.base.Preconditions;
 import com.google.common.primitives.UnsignedBytes;
 import org.bitcoin.NativeSecp256k1;
@@ -62,6 +61,7 @@
 import java.security.SignatureException;
 import java.util.Arrays;
 import java.util.Comparator;
+import java.util.Objects;
 
 import static com.google.common.base.Preconditions.*;
 
@@ -611,7 +611,7 @@ public boolean equals(Object o) {
 
         @Override
         public int hashCode() {
-            return Objects.hashCode(r, s);
+            return Objects.hash(r, s);
         }
     }
 
@@ -1340,11 +1340,11 @@ public boolean equals(Object o) {
         if (this == o) return true;
         if (o == null || !(o instanceof ECKey)) return false;
         ECKey other = (ECKey) o;
-        return Objects.equal(this.priv, other.priv)
-                && Objects.equal(this.pub, other.pub)
-                && Objects.equal(this.creationTimeSeconds, other.creationTimeSeconds)
-                && Objects.equal(this.keyCrypter, other.keyCrypter)
-                && Objects.equal(this.encryptedPrivateKey, other.encryptedPrivateKey);
+        return Objects.equals(this.priv, other.priv)
+                && Objects.equals(this.pub, other.pub)
+                && Objects.equals(this.creationTimeSeconds, other.creationTimeSeconds)
+                && Objects.equals(this.keyCrypter, other.keyCrypter)
+                && Objects.equals(this.encryptedPrivateKey, other.encryptedPrivateKey);
     }
 
     @Override

core/src/main/java/org/bitcoinj/core/FilteredBlock.java

@@ -17,7 +17,6 @@
 
 package org.bitcoinj.core;
 
-import com.google.common.base.Objects;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.util.*;
@@ -136,7 +135,7 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(associatedTransactions, header, merkleTree);
+        return Objects.hash(associatedTransactions, header, merkleTree);
     }
 
     @Override

core/src/main/java/org/bitcoinj/core/GetUTXOsMessage.java

@@ -16,12 +16,12 @@
 
 package org.bitcoinj.core;
 
-import com.google.common.base.Objects;
 import com.google.common.collect.ImmutableList;
 
 import java.io.IOException;
 import java.io.OutputStream;
 import java.util.List;
+import java.util.Objects;
 
 /**
  * <p>This command is supported only by <a href="http://github.com/bitcoinxt/bitcoinxt">Bitcoin XT</a> nodes, which
@@ -100,6 +100,6 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(includeMempool, outPoints);
+        return Objects.hash(includeMempool, outPoints);
     }
 }

core/src/main/java/org/bitcoinj/core/InventoryItem.java

@@ -16,7 +16,7 @@
 
 package org.bitcoinj.core;
 
-import com.google.common.base.Objects;
+import java.util.Objects;
 
 public class InventoryItem {
 
@@ -86,6 +86,6 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(type, hash);
+        return Objects.hash(type, hash);
     }
 }

core/src/main/java/org/bitcoinj/core/NetworkParameters.java

@@ -17,8 +17,10 @@
 
 package org.bitcoinj.core;
 
+import org.bitcoinj.core.Block;
+import org.bitcoinj.core.StoredBlock;
+import org.bitcoinj.core.VerificationException;
 import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Objects;
 import org.bitcoinj.net.discovery.*;
 import org.bitcoinj.params.*;
 import org.bitcoinj.script.*;
@@ -298,7 +300,7 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(getId());
+        return Objects.hash(getId());
     }
 
     /** Returns the network parameters for the given string ID or NULL if not recognized. */

core/src/main/java/org/bitcoinj/core/PartialMerkleTree.java

@@ -23,9 +23,9 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Objects;
 
 import static org.bitcoinj.core.Utils.*;
-import com.google.common.base.Objects;
 
 /**
  * <p>A data structure that contains proofs of block inclusion for one or more transactions, in an efficient manner.</p>
@@ -275,7 +275,7 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(transactionCount, hashes, Arrays.hashCode(matchedChildBits));
+        return Objects.hash(transactionCount, hashes, Arrays.hashCode(matchedChildBits));
     }
 
     @Override

core/src/main/java/org/bitcoinj/core/Peer.java

@@ -16,9 +16,6 @@
 
 package org.bitcoinj.core;
 
-import com.google.common.base.Objects;
-import com.google.common.collect.Lists;
-
 import org.bitcoinj.coinjoin.CoinJoinQueue;
 import org.bitcoinj.core.listeners.*;
 import org.bitcoinj.evolution.SimplifiedMasternodeListDiff;
@@ -42,10 +39,12 @@
 import org.bitcoinj.wallet.Wallet;
 
 import com.google.common.base.Function;
+import com.google.common.base.Joiner;
 import com.google.common.base.MoreObjects;
 import com.google.common.base.Preconditions;
 import com.google.common.base.Strings;
 import com.google.common.base.Throwables;
+import com.google.common.collect.Lists;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
@@ -1764,7 +1763,7 @@ private void blockChainDownloadLocked(Sha256Hash toHash) {
         StoredBlock chainHead = blockChain.getChainHead();
         Sha256Hash chainHeadHash = chainHead.getHeader().getHash();
         // Did we already make this request? If so, don't do it again.
-        if (Objects.equal(lastGetBlocksBegin, chainHeadHash) && Objects.equal(lastGetBlocksEnd, toHash)) {
+        if (Objects.equals(lastGetBlocksBegin, chainHeadHash) && Objects.equals(lastGetBlocksEnd, toHash)) {
             log.info("blockChainDownloadLocked({}): ignoring duplicated request: {}", toHash, chainHeadHash);
             for (Sha256Hash hash : pendingBlockDownloads)
                 log.info("Pending block download: {}", hash);
@@ -1841,7 +1840,7 @@ private void blockChainHeaderDownloadLocked(Sha256Hash toHash) {
         StoredBlock chainHead = headerChain.getChainHead();
         Sha256Hash chainHeadHash = chainHead.getHeader().getHash();
         // Did we already make this request? If so, don't do it again.
-        if (Objects.equal(lastGetHeadersBegin, chainHeadHash) && Objects.equal(lastGetHeadersEnd, toHash)) {
+        if (Objects.equals(lastGetHeadersBegin, chainHeadHash) && Objects.equals(lastGetHeadersEnd, toHash)) {
             log.info("blockChainDownloadLocked({}): ignoring duplicated request: {}", toHash, chainHeadHash);
             for (Sha256Hash hash : pendingBlockDownloads)
                 log.info("Pending block download: {}", hash);

core/src/main/java/org/bitcoinj/core/PeerAddress.java

@@ -17,14 +17,14 @@
 
 package org.bitcoinj.core;
 
-import com.google.common.base.Objects;
 
 import java.io.IOException;
 import java.io.OutputStream;
 import java.math.BigInteger;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.UnknownHostException;
+import java.util.Objects;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
@@ -209,7 +209,7 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(addr, port, time, services);
+        return Objects.hash(addr, port, time, services);
     }
 
     public InetSocketAddress toSocketAddress() {

core/src/main/java/org/bitcoinj/core/PrefixedChecksummedBytes.java

@@ -23,8 +23,8 @@
 import java.io.Serializable;
 import java.lang.reflect.Field;
 import java.util.Arrays;
+import java.util.Objects;
 
-import com.google.common.base.Objects;
 import com.google.common.primitives.UnsignedBytes;
 import static com.google.common.base.Preconditions.checkNotNull;
 
@@ -59,7 +59,7 @@ public final NetworkParameters getParameters() {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(params, Arrays.hashCode(bytes));
+        return Objects.hash(params, Arrays.hashCode(bytes));
     }
 
     @Override

core/src/main/java/org/bitcoinj/core/RejectMessage.java

@@ -17,11 +17,11 @@
 
 package org.bitcoinj.core;
 
-import com.google.common.base.Objects;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.nio.charset.StandardCharsets;
 import java.util.Locale;
+import java.util.Objects;
 
 /**
  * <p>A message sent by nodes when a message we sent was rejected (ie a transaction had too little fee/was invalid/etc).</p>
@@ -164,6 +164,6 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(message, code, reason, messageHash);
+        return Objects.hash(message, code, reason, messageHash);
     }
 }

core/src/main/java/org/bitcoinj/core/StoredBlock.java

@@ -18,11 +18,11 @@
 
 import org.bitcoinj.store.BlockStore;
 import org.bitcoinj.store.BlockStoreException;
-import com.google.common.base.Objects;
 
 import java.math.BigInteger;
 import java.nio.ByteBuffer;
 import java.util.Locale;
+import java.util.Objects;
 
 import static com.google.common.base.Preconditions.checkState;
 
@@ -91,7 +91,7 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(header, chainWork, height);
+        return Objects.hash(header, chainWork, height);
     }
 
     /**

core/src/main/java/org/bitcoinj/core/TransactionInput.java

@@ -24,14 +24,14 @@
 import org.bitcoinj.wallet.RedeemData;
 
 import com.google.common.base.Joiner;
-import com.google.common.base.Objects;
 
 import javax.annotation.Nullable;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.lang.ref.WeakReference;
 import java.util.Arrays;
 import java.util.Map;
+import java.util.Objects;
 
 import static com.google.common.base.Preconditions.checkElementIndex;
 import static com.google.common.base.Preconditions.checkNotNull;
@@ -505,7 +505,7 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(sequence, outpoint, Arrays.hashCode(scriptBytes));
+        return Objects.hash(sequence, outpoint, Arrays.hashCode(scriptBytes));
     }
 
     /**

core/src/main/java/org/bitcoinj/core/TransactionOutPoint.java

@@ -17,12 +17,12 @@
 
 package org.bitcoinj.core;
 
-import com.google.common.base.Objects;
 import org.bitcoinj.script.*;
 import org.bitcoinj.wallet.*;
 
 import javax.annotation.*;
 import java.io.*;
+import java.util.Objects;
 
 import static com.google.common.base.Preconditions.*;
 
@@ -223,6 +223,6 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(getIndex(), getHash());
+        return Objects.hash(getIndex(), getHash());
     }
 }

core/src/main/java/org/bitcoinj/core/TransactionOutput.java

@@ -17,7 +17,6 @@
 
 package org.bitcoinj.core;
 
-import com.google.common.base.Objects;
 import org.bitcoinj.script.*;
 import org.bitcoinj.wallet.Wallet;
 import org.slf4j.*;
@@ -26,6 +25,7 @@
 import java.io.*;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Objects;
 
 import static com.google.common.base.Preconditions.*;
 
@@ -408,6 +408,6 @@ public boolean equals(Object o) {
 
     @Override
     public int hashCode() {
-        return Objects.hashCode(value, parent, Arrays.hashCode(scriptBytes));
+        return Objects.hash(value, parent, Arrays.hashCode(scriptBytes));
     }
 }