From 1253471078147707d0ecd98464447bc591b93fa0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BA=8E=E7=8E=89=E6=A1=94?= <zhaoyuguang@apache.org>
Date: Mon, 26 Aug 2019 22:34:28 +0800
Subject: [PATCH] Code refinement for JDK-picked classes (#1014)

---
 .../csp/sentinel/slots/statistic/base/LongAdder.java        | 6 ++++++
 .../csp/sentinel/slots/statistic/base/Striped64.java        | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/statistic/base/LongAdder.java b/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/statistic/base/LongAdder.java
index beeaedcf..e0e638a1 100755
--- a/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/statistic/base/LongAdder.java
+++ b/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/statistic/base/LongAdder.java
@@ -46,6 +46,7 @@ public class LongAdder extends Striped64 implements Serializable {
     /**
      * Version of plus for use in retryUpdate
      */
+    @Override
     final long fn(long v, long x) { return v + x; }
 
     /**
@@ -153,6 +154,7 @@ public class LongAdder extends Striped64 implements Serializable {
      *
      * @return the String representation of the {@link #sum}
      */
+    @Override
     public String toString() {
         return Long.toString(sum());
     }
@@ -162,6 +164,7 @@ public class LongAdder extends Striped64 implements Serializable {
      *
      * @return the sum
      */
+    @Override
     public long longValue() {
         return sum();
     }
@@ -170,6 +173,7 @@ public class LongAdder extends Striped64 implements Serializable {
      * Returns the {@link #sum} as an {@code int} after a narrowing
      * primitive conversion.
      */
+    @Override
     public int intValue() {
         return (int)sum();
     }
@@ -178,6 +182,7 @@ public class LongAdder extends Striped64 implements Serializable {
      * Returns the {@link #sum} as a {@code float}
      * after a widening primitive conversion.
      */
+    @Override
     public float floatValue() {
         return (float)sum();
     }
@@ -186,6 +191,7 @@ public class LongAdder extends Striped64 implements Serializable {
      * Returns the {@link #sum} as a {@code double} after a widening
      * primitive conversion.
      */
+    @Override
     public double doubleValue() {
         return (double)sum();
     }
diff --git a/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/statistic/base/Striped64.java b/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/statistic/base/Striped64.java
index e4489e8c..cab42f0a 100755
--- a/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/statistic/base/Striped64.java
+++ b/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/statistic/base/Striped64.java
@@ -136,6 +136,7 @@ abstract class Striped64 extends Number {
      * The corresponding ThreadLocal class
      */
     static final class ThreadHashCode extends ThreadLocal<HashCode> {
+        @Override
         public HashCode initialValue() { return new HashCode(); }
     }
 
@@ -330,6 +331,7 @@ abstract class Striped64 extends Number {
                 return java.security.AccessController.doPrivileged
                     (new java.security
                         .PrivilegedExceptionAction<sun.misc.Unsafe>() {
+                        @Override
                         public sun.misc.Unsafe run() throws Exception {
                             java.lang.reflect.Field f = sun.misc
                                 .Unsafe.class.getDeclaredField("theUnsafe");