diff --git a/klein-consensus/klein-consensus-paxos/src/main/java/com/ofcoder/klein/consensus/paxos/PaxosNode.java b/klein-consensus/klein-consensus-paxos/src/main/java/com/ofcoder/klein/consensus/paxos/PaxosNode.java
index 55c9f9e5..8f97f491 100644
--- a/klein-consensus/klein-consensus-paxos/src/main/java/com/ofcoder/klein/consensus/paxos/PaxosNode.java
+++ b/klein-consensus/klein-consensus-paxos/src/main/java/com/ofcoder/klein/consensus/paxos/PaxosNode.java
@@ -16,14 +16,12 @@
  */
 package com.ofcoder.klein.consensus.paxos;
 
-import java.util.Objects;
-import java.util.concurrent.atomic.AtomicReference;
-
 import com.ofcoder.klein.consensus.facade.Node;
-import com.ofcoder.klein.consensus.paxos.core.ProposerImpl;
 import com.ofcoder.klein.consensus.paxos.core.sm.MemberRegistry;
 import com.ofcoder.klein.rpc.facade.Endpoint;
 
+import java.util.Objects;
+
 /**
  * paxos node info.
  *
diff --git a/klein-consensus/klein-consensus-paxos/src/main/java/com/ofcoder/klein/consensus/paxos/core/RuntimeAccessor.java b/klein-consensus/klein-consensus-paxos/src/main/java/com/ofcoder/klein/consensus/paxos/core/RuntimeAccessor.java
index 6ce4f98e..2568b2bc 100644
--- a/klein-consensus/klein-consensus-paxos/src/main/java/com/ofcoder/klein/consensus/paxos/core/RuntimeAccessor.java
+++ b/klein-consensus/klein-consensus-paxos/src/main/java/com/ofcoder/klein/consensus/paxos/core/RuntimeAccessor.java
@@ -36,9 +36,11 @@ public class RuntimeAccessor {
     public static AtomicReference<ProposerImpl.PrepareState> getSkipPrepare() {
         return skipPrepare;
     }
+
     public static Proposer getProposer() {
         return proposer;
     }
+
     public static Acceptor getAcceptor() {
         return acceptor;
     }