Polish whitespace and imports

- Replace leading tabs with spaces
 - Add space before opening curly brace
 - Optimize imports using shared .idea/codeStyleSettings.xml
 - Do not align assignments on equals sign
 - Remove unnecessary extra newlines

ethereumj-core/src/main/java/org/ethereum/core/BlockchainImpl.java

@@ -9,9 +9,12 @@ import org.ethereum.net.BlockQueue;
 import org.ethereum.net.server.ChannelManager;
 import org.ethereum.util.AdvancedDeviceUtils;
 import org.ethereum.vm.ProgramInvokeFactory;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
 import org.spongycastle.util.encoders.Hex;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 import org.springframework.util.FileSystemUtils;
@@ -20,7 +23,9 @@ import java.io.BufferedWriter;
 import java.io.File;
 import java.io.FileWriter;
 import java.io.IOException;
+
 import java.math.BigInteger;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -166,10 +171,11 @@ public class BlockchainImpl implements Blockchain {
             channelManager.ethSync();
         }
 
-
         if (!hasParentOnTheChain(block) && block.getNumber() > bestBlock.getNumber()) {
 
-            if (1==1)return; // todo: temporary cancel the rollback
+            if (1 == 1)
+                return; // todo: temporary cancel the rollback
+
             logger.info("*** Blockchain will rollback and resynchronise now ");
 
             long rollbackIdx = bestBlock.getNumber() - 30;
@@ -233,7 +239,6 @@ public class BlockchainImpl implements Blockchain {
 
             logger.info("Sync done");
             syncDoneCalled = true;
-
             listener.onSyncDone();
         }
     }
@@ -417,7 +422,6 @@ public class BlockchainImpl implements Blockchain {
             logger.debug("block added to the blockChain: index: [{}]", block.getNumber());
         if (block.getNumber() % 100 == 0)
             logger.info("*** Last block added [ #{} ]", block.getNumber());
-
     }
 
 

ethereumj-core/src/main/java/org/ethereum/net/eth/EthHandler.java

@@ -164,8 +164,6 @@ public class EthHandler extends SimpleChannelInboundHandler<EthMessage> {
         }
     }
 
-
-
     private void processTransactions(TransactionsMessage msg) {
 
         Set<Transaction> txSet = msg.getTransactions();
@@ -249,9 +247,6 @@ public class EthHandler extends SimpleChannelInboundHandler<EthMessage> {
     private void processBlockHashes(BlockHashesMessage blockHashesMessage) {
 
         List<byte[]> receivedHashes = blockHashesMessage.getBlockHashes();
-
-//        receivedHashes.forEach(hash -> System.out.println(Hex.toHexString(hash)));
-
         BlockQueue chainQueue = blockchain.getQueue();
 
         // result is empty, peer has no more hashes

ethereumj-core/src/main/java/org/ethereum/net/message/StaticMessages.java

@@ -5,7 +5,12 @@ import org.ethereum.crypto.HashUtil;
 import org.ethereum.net.client.Capability;
 import org.ethereum.net.eth.EthHandler;
 import org.ethereum.net.eth.GetTransactionsMessage;
-import org.ethereum.net.p2p.*;
+import org.ethereum.net.p2p.DisconnectMessage;
+import org.ethereum.net.p2p.GetPeersMessage;
+import org.ethereum.net.p2p.HelloMessage;
+import org.ethereum.net.p2p.P2pHandler;
+import org.ethereum.net.p2p.PingMessage;
+import org.ethereum.net.p2p.PongMessage;
 import org.ethereum.net.shh.ShhHandler;
 
 import org.spongycastle.util.encoders.Hex;

ethereumj-core/src/main/java/org/ethereum/net/p2p/P2pHandler.java

@@ -1,7 +1,5 @@
 package org.ethereum.net.p2p;
 
-import io.netty.channel.ChannelHandlerContext;
-import io.netty.channel.SimpleChannelInboundHandler;
 import org.ethereum.core.Block;
 import org.ethereum.core.Transaction;
 import org.ethereum.manager.WorldManager;
@@ -16,19 +14,30 @@ import org.ethereum.net.message.StaticMessages;
 import org.ethereum.net.peerdiscovery.PeerInfo;
 import org.ethereum.net.shh.ShhHandler;
 import org.ethereum.net.shh.ShhMessageCodes;
+
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.SimpleChannelInboundHandler;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Component;
 
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
-import java.util.*;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.Timer;
+import java.util.TimerTask;
 
 import static org.ethereum.net.message.StaticMessages.*;
 
-
 /**
  * Process the basic protocol messages between every peer on the network.
  *
@@ -277,8 +286,6 @@ public class P2pHandler extends SimpleChannelInboundHandler<P2pMessage> {
         return handshakeHelloMessage;
     }
 
-
-
     private void startTimers() {
         // sample for pinging in background
 

ethereumj-core/src/main/java/org/ethereum/net/server/ChannelManager.java

@@ -108,9 +108,7 @@ public class ChannelManager {
     }
 
     public void reconnect(){
-        for (Channel channel : channels){
+        channels.forEach(c -> c.p2pHandler.sendDisconnect());
-            channel.p2pHandler.sendDisconnect();
-        }
     }
 
     public void ethSync() {