diff --git a/storage/src/main/java/com/zfoo/storage/manager/StorageInt.java b/storage/src/main/java/com/zfoo/storage/manager/StorageInt.java
index c660f479..bea79e90 100644
--- a/storage/src/main/java/com/zfoo/storage/manager/StorageInt.java
+++ b/storage/src/main/java/com/zfoo/storage/manager/StorageInt.java
@@ -35,11 +35,10 @@ public class StorageInt<K, V> extends AbstractStorage<K, V> {
 
         this.dataMap = new IntObjectHashMap<>(values.size());
         for (var value : values) {
-            @SuppressWarnings("unchecked")
-            var id = (K) ReflectionUtils.getField(idDef.getField(), value);
+            var id = (Integer) ReflectionUtils.getField(idDef.getField(), value);
             @SuppressWarnings("unchecked")
             var v = (V) value;
-            dataMap.put((Integer) id, v);
+            dataMap.put(id, v);
         }
     }
 
diff --git a/storage/src/main/java/com/zfoo/storage/manager/StorageLong.java b/storage/src/main/java/com/zfoo/storage/manager/StorageLong.java
index 4e5d39f5..2e60906a 100644
--- a/storage/src/main/java/com/zfoo/storage/manager/StorageLong.java
+++ b/storage/src/main/java/com/zfoo/storage/manager/StorageLong.java
@@ -35,11 +35,10 @@ public class StorageLong<K, V> extends AbstractStorage<K, V> {
 
         this.dataMap = new LongObjectHashMap<>(values.size());
         for (var value : values) {
-            @SuppressWarnings("unchecked")
-            var id = (K) ReflectionUtils.getField(idDef.getField(), value);
+            var id = (Long) ReflectionUtils.getField(idDef.getField(), value);
             @SuppressWarnings("unchecked")
             var v = (V) value;
-            dataMap.put((Long) id, v);
+            dataMap.put(id, v);
         }
     }
 
diff --git a/storage/src/main/java/com/zfoo/storage/manager/StorageObject.java b/storage/src/main/java/com/zfoo/storage/manager/StorageObject.java
index e133bd66..5e992058 100644
--- a/storage/src/main/java/com/zfoo/storage/manager/StorageObject.java
+++ b/storage/src/main/java/com/zfoo/storage/manager/StorageObject.java
@@ -35,7 +35,7 @@ public class StorageObject<K, V> extends AbstractStorage<K, V> {
             var id = (K) ReflectionUtils.getField(idDef.getField(), value);
             @SuppressWarnings("unchecked")
             var v = (V) value;
-            dataMap.put((K) id, v);
+            dataMap.put(id, v);
         }
     }