kuny0707 · Oct 13, 2026 · Sep 23, 2026 · Sep 23, 2026 · Oct 12, 2026 · Oct 12, 2026
diff --git a/chainbase/src/main/java/org/tron/common/zksnark/JLibrustzcash.java b/chainbase/src/main/java/org/tron/common/zksnark/JLibrustzcash.java
@@ -1,8 +1,6 @@
 package org.tron.common.zksnark;
 
 import lombok.extern.slf4j.Slf4j;
-import org.tron.common.parameter.CommonParameter;
-import org.tron.common.utils.ByteUtil;
 import org.tron.common.zksnark.LibrustzcashParam.BindingSigParams;
 import org.tron.common.zksnark.LibrustzcashParam.CheckOutputNewParams;
 import org.tron.common.zksnark.LibrustzcashParam.CheckOutputParams;

diff --git a/chainbase/src/main/java/org/tron/common/zksnark/JLibsodium.java b/chainbase/src/main/java/org/tron/common/zksnark/JLibsodium.java
@@ -1,6 +1,5 @@
 package org.tron.common.zksnark;
 
-import org.tron.common.parameter.CommonParameter;
 import org.tron.common.zksnark.JLibsodiumParam.Black2bSaltPersonalParams;
 import org.tron.common.zksnark.JLibsodiumParam.Blake2bFinalParams;
 import org.tron.common.zksnark.JLibsodiumParam.Blake2bInitSaltPersonalParams;

diff --git a/chainbase/src/main/java/org/tron/core/capsule/AccountTraceCapsule.java b/chainbase/src/main/java/org/tron/core/capsule/AccountTraceCapsule.java
@@ -1,13 +1,10 @@
 package org.tron.core.capsule;
 
 import com.google.protobuf.InvalidProtocolBufferException;
-import java.util.List;
 import java.util.Objects;
-import org.tron.common.utils.StringUtil;
 import org.tron.core.exception.BadItemException;
 import org.tron.protos.contract.BalanceContract;
 import org.tron.protos.contract.BalanceContract.AccountTrace;
-import org.tron.protos.contract.BalanceContract.TransactionBalanceTrace;
 
 public class AccountTraceCapsule implements ProtoCapsule<AccountTrace> {
   private BalanceContract.AccountTrace accountTrace;

diff --git a/chainbase/src/main/java/org/tron/core/capsule/BlockBalanceTraceCapsule.java b/chainbase/src/main/java/org/tron/core/capsule/BlockBalanceTraceCapsule.java
@@ -2,10 +2,7 @@
 
 import com.google.protobuf.InvalidProtocolBufferException;
 import java.util.List;
-import java.util.Map;
-import org.tron.common.utils.StringUtil;
 import org.tron.core.exception.BadItemException;
-import org.tron.protos.contract.BalanceContract;
 import org.tron.protos.contract.BalanceContract.BlockBalanceTrace;
 import org.tron.protos.contract.BalanceContract.TransactionBalanceTrace;
 

diff --git a/chainbase/src/main/java/org/tron/core/capsule/ContractCapsule.java b/chainbase/src/main/java/org/tron/core/capsule/ContractCapsule.java
@@ -28,7 +28,6 @@
 import org.tron.protos.contract.SmartContractOuterClass.SmartContract;
 import org.tron.protos.contract.SmartContractOuterClass.SmartContract.ABI;
 import org.tron.protos.contract.SmartContractOuterClass.SmartContractDataWrapper;
-import org.tron.protos.contract.SmartContractOuterClass.SmartContractDataWrapperOrBuilder;
 import org.tron.protos.contract.SmartContractOuterClass.TriggerSmartContract;
 
 @Slf4j(topic = "capsule")

diff --git a/chainbase/src/main/java/org/tron/core/capsule/MarketOrderCapsule.java b/chainbase/src/main/java/org/tron/core/capsule/MarketOrderCapsule.java
@@ -3,15 +3,10 @@
 import com.google.protobuf.ByteString;
 import com.google.protobuf.InvalidProtocolBufferException;
 import lombok.extern.slf4j.Slf4j;
-import org.tron.common.utils.ByteArray;
 import org.tron.core.exception.ItemNotFoundException;
-import org.tron.core.store.AssetIssueStore;
-import org.tron.core.store.DynamicPropertiesStore;
 import org.tron.core.store.MarketOrderStore;
-import org.tron.protos.Protocol;
 import org.tron.protos.Protocol.MarketOrder;
 
-import java.util.Arrays;
 import org.tron.protos.Protocol.MarketOrder.State;
 import org.tron.protos.contract.MarketContract.MarketSellAssetContract;
 

diff --git a/chainbase/src/main/java/org/tron/core/capsule/MarketPriceCapsule.java b/chainbase/src/main/java/org/tron/core/capsule/MarketPriceCapsule.java
@@ -1,6 +1,5 @@
 package org.tron.core.capsule;
 
-import com.google.protobuf.ByteString;
 import com.google.protobuf.InvalidProtocolBufferException;
 import lombok.extern.slf4j.Slf4j;
 import org.tron.core.capsule.utils.MarketUtils;

diff --git a/chainbase/src/main/java/org/tron/core/capsule/PbftSignCapsule.java b/chainbase/src/main/java/org/tron/core/capsule/PbftSignCapsule.java
@@ -2,7 +2,6 @@
 
 import com.google.protobuf.ByteString;
 import com.google.protobuf.InvalidProtocolBufferException;
-import java.util.Deque;
 import java.util.List;
 import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;

diff --git a/chainbase/src/main/java/org/tron/core/db/BlockStore.java b/chainbase/src/main/java/org/tron/core/db/BlockStore.java
@@ -23,7 +23,6 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
-import org.tron.common.error.TronDBException;
 import org.tron.common.utils.Sha256Hash;
 import org.tron.core.capsule.BlockCapsule;
 import org.tron.core.capsule.BlockCapsule.BlockId;

diff --git a/chainbase/src/main/java/org/tron/core/db/KhaosDatabase.java b/chainbase/src/main/java/org/tron/core/db/KhaosDatabase.java
@@ -4,7 +4,6 @@
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.Comparator;
-import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.LinkedList;
 import java.util.List;
@@ -205,37 +204,6 @@ private void checkNull(Object o) throws NonCommonBlockException {
     }
   }
 
-  /**
-   * Find two block's most recent common parent block.
-   */
-  @Deprecated
-  public Pair<LinkedList<BlockCapsule>, LinkedList<BlockCapsule>> getBranch(
-      BlockId block1, BlockId block2) {
-    LinkedList<BlockCapsule> list1 = new LinkedList<>();
-    LinkedList<BlockCapsule> list2 = new LinkedList<>();
-    KhaosBlock kblk1 = miniStore.getByHash(block1);
-    KhaosBlock kblk2 = miniStore.getByHash(block2);
-
-    if (kblk1 != null && kblk2 != null) {
-      while (!Objects.equals(kblk1, kblk2)) {
-        if (kblk1.num > kblk2.num) {
-          list1.add(kblk1.blk);
-          kblk1 = kblk1.getParent();
-        } else if (kblk1.num < kblk2.num) {
-          list2.add(kblk2.blk);
-          kblk2 = kblk2.getParent();
-        } else {
-          list1.add(kblk1.blk);
-          list2.add(kblk2.blk);
-          kblk1 = kblk1.getParent();
-          kblk2 = kblk2.getParent();
-        }
-      }
-    }
-
-    return new Pair<>(list1, list2);
-  }
-
   // only for unit test
   public BlockCapsule getParentBlock(Sha256Hash hash) {
     return Stream.of(miniStore.getByHash(hash), miniUnlinkedStore.getByHash(hash))

diff --git a/chainbase/src/main/java/org/tron/core/db/common/iterator/DBIterator.java b/chainbase/src/main/java/org/tron/core/db/common/iterator/DBIterator.java
@@ -1,8 +1,5 @@
 package org.tron.core.db.common.iterator;
 
-import com.google.common.collect.Iterators;
-import com.google.common.collect.UnmodifiableIterator;
-import com.google.common.primitives.Bytes;
 import java.io.Closeable;
 import java.util.Iterator;
 import java.util.Map.Entry;

diff --git a/chainbase/src/main/java/org/tron/core/db2/core/Chainbase.java b/chainbase/src/main/java/org/tron/core/db2/core/Chainbase.java
@@ -13,7 +13,6 @@
 import java.util.stream.Collectors;
 
 import org.tron.common.utils.ByteUtil;
-import org.tron.common.utils.Pair;
 import org.tron.core.capsule.utils.MarketUtils;
 import org.tron.core.db2.common.IRevokingDB;
 import org.tron.core.db2.common.LevelDB;

diff --git a/chainbase/src/main/java/org/tron/core/store/BalanceTraceStore.java b/chainbase/src/main/java/org/tron/core/store/BalanceTraceStore.java
@@ -1,17 +1,9 @@
 package org.tron.core.store;
 
-import com.google.common.primitives.Bytes;
-import com.google.protobuf.ByteString;
-import com.google.protobuf.InvalidProtocolBufferException;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-import java.util.stream.Collectors;
 import lombok.Getter;
 import lombok.Setter;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.collections4.CollectionUtils;
-import org.apache.commons.lang3.ArrayUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
@@ -24,7 +16,6 @@
 import org.tron.core.capsule.TransactionCapsule;
 import org.tron.core.db.TronStoreWithRevoking;
 import org.tron.core.exception.BadItemException;
-import org.tron.protos.contract.BalanceContract;
 import org.tron.protos.contract.BalanceContract.TransactionBalanceTrace;
 
 import java.util.Objects;

diff --git a/chainbase/src/main/java/org/tron/core/store/ContractStore.java b/chainbase/src/main/java/org/tron/core/store/ContractStore.java
@@ -2,14 +2,11 @@
 
 import com.google.common.collect.Streams;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.commons.lang3.ArrayUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
-import org.tron.core.capsule.AbiCapsule;
 import org.tron.core.capsule.ContractCapsule;
 import org.tron.core.db.TronStoreWithRevoking;
-import org.tron.protos.contract.SmartContractOuterClass.SmartContract;
 
 import java.util.Objects;
 

diff --git a/chainbase/src/main/java/org/tron/core/store/TreeBlockIndexStore.java b/chainbase/src/main/java/org/tron/core/store/TreeBlockIndexStore.java
@@ -1,6 +1,5 @@
 package org.tron.core.store;
 
-import java.util.Arrays;
 import org.apache.commons.lang3.ArrayUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;

diff --git a/consensus/src/main/java/org/tron/consensus/dpos/DposService.java b/consensus/src/main/java/org/tron/consensus/dpos/DposService.java
@@ -6,7 +6,6 @@
 
 import com.google.protobuf.ByteString;
 import java.util.ArrayList;
-import java.util.Comparator;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

diff --git a/consensus/src/main/java/org/tron/consensus/dpos/StateManager.java b/consensus/src/main/java/org/tron/consensus/dpos/StateManager.java
@@ -4,7 +4,6 @@
 import static org.tron.core.config.Parameter.ChainConstant.MAX_ACTIVE_WITNESS_NUM;
 
 import com.google.protobuf.ByteString;
-import java.util.Random;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicLong;
 import lombok.Setter;

diff --git a/consensus/src/main/java/org/tron/consensus/pbft/PbftMessageAction.java b/consensus/src/main/java/org/tron/consensus/pbft/PbftMessageAction.java
@@ -1,7 +1,6 @@
 package org.tron.consensus.pbft;
 
 import com.google.protobuf.ByteString;
-import java.util.Deque;
 import java.util.List;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;

diff --git a/consensus/src/main/java/org/tron/consensus/pbft/message/PbftMessage.java b/consensus/src/main/java/org/tron/consensus/pbft/message/PbftMessage.java
@@ -5,7 +5,6 @@
 import org.tron.common.crypto.ECKey;
 import org.tron.common.crypto.ECKey.ECDSASignature;
 import org.tron.common.utils.Sha256Hash;
-import org.tron.consensus.base.Param;
 import org.tron.consensus.base.Param.Miner;
 import org.tron.core.capsule.BlockCapsule;
 import org.tron.core.net.message.MessageTypes;

diff --git a/crypto/src/main/java/org/tron/common/crypto/ECKey.java b/crypto/src/main/java/org/tron/common/crypto/ECKey.java
@@ -31,7 +31,6 @@
 import java.security.interfaces.ECPublicKey;
 import java.security.spec.InvalidKeySpecException;
 import java.util.Arrays;
-import java.util.Objects;
 import javax.annotation.Nullable;
 import lombok.extern.slf4j.Slf4j;
 import org.bouncycastle.asn1.sec.SECNamedCurves;

diff --git a/framework/src/main/java/org/tron/common/logsfilter/capsule/TransactionLogTriggerCapsule.java b/framework/src/main/java/org/tron/common/logsfilter/capsule/TransactionLogTriggerCapsule.java
@@ -1,14 +1,11 @@
 package org.tron.common.logsfilter.capsule;
 
 import static org.tron.protos.Protocol.Transaction.Contract.ContractType.CreateSmartContract;
-import static org.tron.protos.contract.Common.ResourceCode.ENERGY;
 
 import com.google.protobuf.Any;
 import com.google.protobuf.ByteString;
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 import java.util.Objects;
 import lombok.Getter;
 import lombok.Setter;

diff --git a/framework/src/main/java/org/tron/core/config/args/Args.java b/framework/src/main/java/org/tron/core/config/args/Args.java
@@ -61,7 +61,6 @@
 import org.tron.p2p.P2pConfig;
 import org.tron.p2p.dns.update.DnsType;
 import org.tron.p2p.dns.update.PublishConfig;
-import org.tron.p2p.utils.NetUtil;
 import org.tron.program.Version;
 
 @Slf4j(topic = "app")

diff --git a/framework/src/main/java/org/tron/core/db/Manager.java b/framework/src/main/java/org/tron/core/db/Manager.java
@@ -5,7 +5,6 @@
 import static org.tron.common.math.Maths.min;
 import static org.tron.common.utils.Commons.adjustBalance;
 import static org.tron.core.Constant.TRANSACTION_MAX_BYTE_SIZE;
-import static org.tron.core.exception.BadBlockException.TypeEnum.CALC_MERKLE_ROOT_FAILED;
 import static org.tron.protos.Protocol.Transaction.Contract.ContractType.TransferContract;
 import static org.tron.protos.Protocol.Transaction.Result.contractResult.SUCCESS;
 
@@ -49,7 +48,6 @@
 import org.bouncycastle.util.encoders.Hex;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
-import org.tron.api.GrpcAPI;
 import org.tron.api.GrpcAPI.TransactionInfoList;
 import org.tron.common.args.GenesisBlock;
 import org.tron.common.bloom.Bloom;

diff --git a/framework/src/main/java/org/tron/core/net/message/TronMessageFactory.java b/framework/src/main/java/org/tron/core/net/message/TronMessageFactory.java
@@ -1,7 +1,6 @@
 package org.tron.core.net.message;
 
 import org.apache.commons.lang3.ArrayUtils;
-import org.tron.consensus.pbft.message.PbftMessage;
 import org.tron.core.exception.P2pException;
 import org.tron.core.metrics.MetricsKey;
 import org.tron.core.metrics.MetricsUtil;

diff --git a/framework/src/main/java/org/tron/core/net/message/handshake/HelloMessage.java b/framework/src/main/java/org/tron/core/net/message/handshake/HelloMessage.java
@@ -4,7 +4,6 @@
 import lombok.Getter;
 import org.apache.commons.lang3.StringUtils;
 import org.tron.common.utils.ByteArray;
-import org.tron.common.utils.DecodeUtil;
 import org.tron.common.utils.Sha256Hash;
 import org.tron.common.utils.StringUtil;
 import org.tron.core.ChainBaseManager;

diff --git a/framework/src/main/java/org/tron/core/net/service/handshake/HandshakeService.java b/framework/src/main/java/org/tron/core/net/service/handshake/HandshakeService.java
@@ -6,7 +6,6 @@
 import org.springframework.stereotype.Component;
 import org.tron.common.utils.ByteArray;
 import org.tron.core.ChainBaseManager;
-import org.tron.core.ChainBaseManager.NodeType;
 import org.tron.core.config.args.Args;
 import org.tron.core.net.TronNetService;
 import org.tron.core.net.message.handshake.HelloMessage;

diff --git a/framework/src/main/java/org/tron/core/services/event/BlockEventGet.java b/framework/src/main/java/org/tron/core/services/event/BlockEventGet.java
@@ -6,7 +6,6 @@
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
-import java.util.Objects;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.ArrayUtils;
 import org.apache.commons.lang3.StringUtils;
@@ -26,17 +25,14 @@
 import org.tron.common.logsfilter.trigger.ContractTrigger;
 import org.tron.common.runtime.vm.DataWord;
 import org.tron.common.runtime.vm.LogInfo;
-import org.tron.common.utils.ByteArray;
 import org.tron.common.utils.StringUtil;
 import org.tron.core.capsule.AbiCapsule;
 import org.tron.core.capsule.BlockCapsule;
 import org.tron.core.capsule.ContractCapsule;
 import org.tron.core.capsule.TransactionCapsule;
-import org.tron.core.capsule.TransactionRetCapsule;
 import org.tron.core.config.args.Args;
 import org.tron.core.db.Manager;
 import org.tron.core.db.TransactionTrace;
-import org.tron.core.exception.BadItemException;
 import org.tron.core.services.event.bo.BlockEvent;
 import org.tron.core.services.event.bo.SmartContractTrigger;
 import org.tron.core.services.jsonrpc.JsonRpcApiUtil;

diff --git a/framework/src/main/java/org/tron/core/services/filter/LiteFnQueryGrpcInterceptor.java b/framework/src/main/java/org/tron/core/services/filter/LiteFnQueryGrpcInterceptor.java
@@ -1,7 +1,6 @@
 package org.tron.core.services.filter;
 
 import com.beust.jcommander.internal.Sets;
-import io.grpc.ForwardingServerCall;
 import io.grpc.Metadata;
 import io.grpc.ServerCall;
 import io.grpc.ServerCallHandler;

diff --git a/...n/java/org/tron/core/services/http/CreateShieldedContractParametersWithoutAskServlet.java b/...n/java/org/tron/core/services/http/CreateShieldedContractParametersWithoutAskServlet.java
@@ -1,6 +1,5 @@
 package org.tron.core.services.http;
 
-import java.util.stream.Collectors;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;

diff --git a/framework/src/main/java/org/tron/core/services/http/GetDelegatedResourceServlet.java b/framework/src/main/java/org/tron/core/services/http/GetDelegatedResourceServlet.java
@@ -2,7 +2,6 @@
 
 import com.google.protobuf.ByteString;
 import java.io.IOException;
-import java.util.stream.Collectors;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;

diff --git a/framework/src/main/java/org/tron/core/services/http/GetDiversifierServlet.java b/framework/src/main/java/org/tron/core/services/http/GetDiversifierServlet.java
@@ -1,6 +1,5 @@
 package org.tron.core.services.http;
 
-import java.util.stream.Collectors;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;

diff --git a/framework/src/main/java/org/tron/core/services/http/GetExpandedSpendingKeyServlet.java b/framework/src/main/java/org/tron/core/services/http/GetExpandedSpendingKeyServlet.java
@@ -1,7 +1,6 @@
 package org.tron.core.services.http;
 
 import com.google.protobuf.ByteString;
-import java.util.stream.Collectors;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;

diff --git a/framework/src/main/java/org/tron/core/services/http/GetSpendingKeyServlet.java b/framework/src/main/java/org/tron/core/services/http/GetSpendingKeyServlet.java
@@ -1,6 +1,5 @@
 package org.tron.core.services.http;
 
-import java.util.stream.Collectors;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;

diff --git a/framework/src/main/java/org/tron/core/services/http/GetTransactionByIdServlet.java b/framework/src/main/java/org/tron/core/services/http/GetTransactionByIdServlet.java
@@ -2,7 +2,6 @@
 
 import com.google.protobuf.ByteString;
 import java.io.IOException;
-import java.util.stream.Collectors;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;

diff --git a/...ework/src/main/java/org/tron/core/services/http/GetTransactionCountByBlockNumServlet.java b/...ework/src/main/java/org/tron/core/services/http/GetTransactionCountByBlockNumServlet.java
@@ -1,7 +1,6 @@
 package org.tron.core.services.http;
 
 import java.io.IOException;
-import java.util.stream.Collectors;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;

diff --git a/framework/src/main/java/org/tron/core/services/http/GetTransactionInfoByIdServlet.java b/framework/src/main/java/org/tron/core/services/http/GetTransactionInfoByIdServlet.java
@@ -2,7 +2,6 @@
 
 import com.google.protobuf.ByteString;
 import java.util.List;
-import java.util.stream.Collectors;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;