perf[cow]: CopyOnWriteHashMap equals and hashcode

protocol/src/main/java/com/zfoo/protocol/collection/concurrent/ConcurrentArrayList.java

@@ -270,15 +270,12 @@ public class ConcurrentArrayList<E> implements List<E> {
 
     @Override
     public boolean equals(Object o) {
-        if (o == null) {
-            return false;
+        lock.lock();
+        try {
+            return list.equals(o);
+        } finally {
+            lock.unlock();
         }
-
-        if (this != o) {
-            return false;
-        }
-
-        return list.equals(o);
     }
 
     @Override

protocol/src/main/java/com/zfoo/protocol/collection/concurrent/CopyOnWriteHashMap.java

@@ -133,4 +133,14 @@ public class CopyOnWriteHashMap<K, V> implements Map<K, V> {
     public Set<Entry<K, V>> entrySet() {
         return map.entrySet();
     }
+
+    @Override
+    public boolean equals(Object o) {
+        return map.equals(o);
+    }
+
+    @Override
+    public int hashCode() {
+        return map.hashCode();
+    }
 }

protocol/src/main/java/com/zfoo/protocol/collection/concurrent/CopyOnWriteHashMapLongObject.java

@@ -137,4 +137,14 @@ public class CopyOnWriteHashMapLongObject<V> implements Map<Long, V> {
     public Set<Entry<Long, V>> entrySet() {
         return map.entrySet();
     }
+
+    @Override
+    public boolean equals(Object o) {
+        return map.equals(o);
+    }
+
+    @Override
+    public int hashCode() {
+        return map.hashCode();
+    }
 }