diff --git a/src/org/redkale/convert/ObjectDecoder.java b/src/org/redkale/convert/ObjectDecoder.java
index 4d178a9cd..8b9b99915 100644
--- a/src/org/redkale/convert/ObjectDecoder.java
+++ b/src/org/redkale/convert/ObjectDecoder.java
@@ -31,7 +31,7 @@ public final class ObjectDecoder<R extends Reader, T> implements Decodeable<R, T
 
     protected Creator<T> creator;
 
-    protected DeMember<R, T, ?>[] creatorConstructorMembers;
+    protected DeMember<R, T, ?>[] creatorConstructorMembers = new DeMember[0];
 
     protected DeMember<R, T, ?>[] members;
 
@@ -82,9 +82,10 @@ public final class ObjectDecoder<R extends Reader, T> implements Decodeable<R, T
             } else {
                 clazz = (Class) type;
             }
-            this.creator = factory.loadCreator(clazz);
-            if (this.creator == null) throw new ConvertException("Cannot create a creator for " + clazz);
-
+            if (!clazz.isInterface() && !Modifier.isAbstract(clazz.getModifiers())) {
+                this.creator = factory.loadCreator(clazz);
+                if (this.creator == null) throw new ConvertException("Cannot create a creator for " + clazz);
+            }
             final Set<DeMember> list = new HashSet();
             final String[] cps = ObjectEncoder.findConstructorProperties(this.creator);
             try {
@@ -202,6 +203,13 @@ public final class ObjectDecoder<R extends Reader, T> implements Decodeable<R, T
                 }
             }
         }
+        if (this.creator == null) {
+            synchronized (lock) {
+                if (this.creator == null) {
+                    this.creator = factory.loadCreator(this.typeClass);
+                }
+            }
+        }
         if (this.creatorConstructorMembers == null) {  //空构造函数
             final T result = this.creator.create();
             while (in.hasNext()) {
diff --git a/src/org/redkale/convert/ObjectEncoder.java b/src/org/redkale/convert/ObjectEncoder.java
index 15b56cfc5..582c6ea94 100644
--- a/src/org/redkale/convert/ObjectEncoder.java
+++ b/src/org/redkale/convert/ObjectEncoder.java
@@ -215,6 +215,7 @@ public final class ObjectEncoder<W extends Writer, T> implements Encodeable<W, T
     }
 
     static String[] findConstructorProperties(Creator creator) {
+        if (creator == null) return null;
         try {
             ConstructorParameters cps = creator.getClass().getMethod("create", Object[].class).getAnnotation(ConstructorParameters.class);
             return cps == null ? null : cps.value();