diff --git a/src/org/redkale/convert/ObjectDecoder.java b/src/org/redkale/convert/ObjectDecoder.java
index a09236c33..166321475 100644
--- a/src/org/redkale/convert/ObjectDecoder.java
+++ b/src/org/redkale/convert/ObjectDecoder.java
@@ -61,7 +61,10 @@ public class ObjectDecoder<R extends Reader, T> implements Decodeable<R, T> {
     public void init(final ConvertFactory factory) {
         this.factory = factory;
         try {
-            if (type == Object.class) return;
+            if (type == Object.class) {
+                this.creatorConstructorMembers = null;
+                return;
+            }
 
             Class clazz = null;
             if (type instanceof ParameterizedType) {
@@ -229,7 +232,7 @@ public class ObjectDecoder<R extends Reader, T> implements Decodeable<R, T> {
             }
         }
         if (this.creatorConstructorMembers == null) {  //空构造函数
-            final T result = this.creator.create();
+            final T result = this.creator == null ? null : this.creator.create();
             boolean first = true;
             while (hasNext(in, first)) {
                 DeMember member = in.readFieldName(members);
@@ -270,6 +273,7 @@ public class ObjectDecoder<R extends Reader, T> implements Decodeable<R, T> {
                 first = false;
             }
             in.readObjectE(typeClass);
+            if (this.creator == null) return null;
             final T result = this.creator.create(constructorParams);
             for (int i = 0; i < oc; i++) {
                 ((Attribute) otherParams[i][0]).set(result, otherParams[i][1]);
diff --git a/src/org/redkale/convert/bson/BsonFactory.java b/src/org/redkale/convert/bson/BsonFactory.java
index 4585f106f..f558686b9 100644
--- a/src/org/redkale/convert/bson/BsonFactory.java
+++ b/src/org/redkale/convert/bson/BsonFactory.java
@@ -36,6 +36,9 @@ public final class BsonFactory extends ConvertFactory<BsonReader, BsonWriter> {
     static final Decodeable collectionStringDecoder = instance.loadDecoder(new TypeToken<Collection<String>>() {
     }.getType());
 
+    static final Decodeable collectionObjectDecoder = instance.loadDecoder(new TypeToken<Collection<Object>>() {
+    }.getType());
+
     static final Decodeable mapStringIntegerDecoder = instance.loadDecoder(new TypeToken<Map<String, Integer>>() {
     }.getType());
 
@@ -45,6 +48,9 @@ public final class BsonFactory extends ConvertFactory<BsonReader, BsonWriter> {
     static final Decodeable mapStringStringDecoder = instance.loadDecoder(new TypeToken<Map<String, String>>() {
     }.getType());
 
+    static final Decodeable mapStringObjectDecoder = instance.loadDecoder(new TypeToken<Map<String, Object>>() {
+    }.getType());
+
     static {
         instance.register(Serializable.class, objectDecoder);
         instance.register(Serializable.class, objectEncoder);
diff --git a/src/org/redkale/convert/bson/BsonReader.java b/src/org/redkale/convert/bson/BsonReader.java
index df69fb74f..5cbcef63b 100644
--- a/src/org/redkale/convert/bson/BsonReader.java
+++ b/src/org/redkale/convert/bson/BsonReader.java
@@ -120,6 +120,9 @@ public class BsonReader extends Reader {
             case 29:
                 BsonFactory.collectionStringDecoder.convertFrom(this);
                 break;
+            case 30:
+                BsonFactory.collectionObjectDecoder.convertFrom(this);
+                break;
             case 45:
                 BsonFactory.mapStringIntegerDecoder.convertFrom(this);
                 break;
@@ -129,6 +132,9 @@ public class BsonReader extends Reader {
             case 49:
                 BsonFactory.mapStringStringDecoder.convertFrom(this);
                 break;
+            case 50:
+                BsonFactory.mapStringObjectDecoder.convertFrom(this);
+                break;
             case 101:
                 BoolArraySimpledCoder.instance.convertFrom(this);
                 break;
diff --git a/src/org/redkale/convert/bson/BsonWriter.java b/src/org/redkale/convert/bson/BsonWriter.java
index 16633c7c1..5af414cb1 100644
--- a/src/org/redkale/convert/bson/BsonWriter.java
+++ b/src/org/redkale/convert/bson/BsonWriter.java
@@ -248,6 +248,8 @@ public class BsonWriter extends Writer {
                 typeval = 26;
             } else if (comType == String.class) {
                 typeval = 29;
+            } else if (!comType.toString().startsWith("java.lang")) {
+                typeval = 30;
             }
         }
         if (typeval == 127 && member.getEncoder() instanceof MapEncoder) {
@@ -259,6 +261,8 @@ public class BsonWriter extends Writer {
                 typeval = 46;
             } else if (keyType == String.class && valType == String.class) {
                 typeval = 49;
+            } else if (keyType == String.class && !valType.toString().startsWith("java.lang")) {
+                typeval = 50;
             }
         }
         writeByte(typeval);