some typo fixed

ConnectionPort.java

@@ -293,7 +293,7 @@ public class ConnectionPort {
         return account;
     }
     //might be removec in the future
-    public ConcurrentLinkedQueu<Block> getBlockChain() {
+    public ConcurrentLinkedQueue<Block> getBlockChain() {
         return blockChain;
     }
 
@@ -692,7 +692,7 @@ public class ConnectionPort {
                             if (mergeinfo!=null) {
                                 String repmerge = "OK\n"+mergeinfo;
                                 ps.println(repmerge);
-                                bandwidthLog.println(getMicroTime()+","+rep.length());
+                                bandwidthLog.println(getMicroTime()+","+repmerge.length());
                             } else {
                                 ps.println("FAIL");
                                 bandwidthLog.println(getMicroTime()+",4");
@@ -863,7 +863,7 @@ public class ConnectionPort {
         maxBufferSize = 10000;
         blockBuffer = new ConcurrentHashMap<>();//for blockchain, respond block request
         mergeInfoBuffer = new ConcurrentHashMap<>();//for blockchain, respond mergeInfo request
-        blockChain = new ConcurrentLinkeQueue<>();//for blockchain.only to read, no write. might be useless because we introduce blockBuffer
+        blockChain = new ConcurrentLinkedQueue<>();//for blockchain.only to read, no write. might be useless because we introduce blockBuffer
         account = new ConcurrentHashMap<>();//for blockchain. only to read, no write.might be useless because we introduce mergeInfoBuffer
         solutions = new LinkedBlockingDeque<>();
         verification = new LinkedBlockingDeque<>();