diff --git a/src/org/redkale/convert/bson/BsonConvert.java b/src/org/redkale/convert/bson/BsonConvert.java
index 9c26ab4c1..a9c9a13bd 100644
--- a/src/org/redkale/convert/bson/BsonConvert.java
+++ b/src/org/redkale/convert/bson/BsonConvert.java
@@ -115,10 +115,10 @@ public final class BsonConvert extends Convert<BsonReader, BsonWriter> {
         return (T) factory.loadDecoder(type).convertFrom(new BsonStreamReader(in));
     }
 
-    public <T> T convertFrom(final BsonReader in, final Type type) {
+    public <T> T convertFrom(final Type type, final BsonReader reader) {
         if (type == null) return null;
         @SuppressWarnings("unchecked")
-        T rs = (T) factory.loadDecoder(type).convertFrom(in);
+        T rs = (T) factory.loadDecoder(type).convertFrom(reader);
         return rs;
     }
 
@@ -143,19 +143,6 @@ public final class BsonConvert extends Convert<BsonReader, BsonWriter> {
         return result;
     }
 
-    public void convertTo(final BsonWriter out, Object value) {
-        if (value == null) {
-            out.writeNull();
-        } else {
-            factory.loadEncoder(value.getClass()).convertTo(out, value);
-        }
-    }
-
-    public void convertTo(final BsonWriter out, final Type type, Object value) {
-        if (type == null) return;
-        factory.loadEncoder(type).convertTo(out, value);
-    }
-
     public void convertTo(final OutputStream out, Object value) {
         if (value == null) {
             new BsonStreamWriter(tiny, out).writeNull();
@@ -195,6 +182,19 @@ public final class BsonConvert extends Convert<BsonReader, BsonWriter> {
         return out.toBuffers();
     }
 
+    public void convertTo(final BsonWriter writer, Object value) {
+        if (value == null) {
+            writer.writeNull();
+        } else {
+            factory.loadEncoder(value.getClass()).convertTo(writer, value);
+        }
+    }
+
+    public void convertTo(final BsonWriter writer, final Type type, Object value) {
+        if (type == null) return;
+        factory.loadEncoder(type).convertTo(writer, value);
+    }
+
     public BsonWriter convertToWriter(Object value) {
         if (value == null) return null;
         return convertToWriter(value.getClass(), value);
diff --git a/src/org/redkale/convert/json/JsonConvert.java b/src/org/redkale/convert/json/JsonConvert.java
index 4fdf64c43..5bc5e5821 100644
--- a/src/org/redkale/convert/json/JsonConvert.java
+++ b/src/org/redkale/convert/json/JsonConvert.java
@@ -110,10 +110,10 @@ public final class JsonConvert extends Convert<JsonReader, JsonWriter> {
         return (T) factory.loadDecoder(type).convertFrom(new JsonStreamReader(in));
     }
 
-    public <T> T convertFrom(final JsonReader in, final Type type) {
+    public <T> T convertFrom(final Type type, final JsonReader reader) {
         if (type == null) return null;
         @SuppressWarnings("unchecked")
-        T rs = (T) factory.loadDecoder(type).convertFrom(in);
+        T rs = (T) factory.loadDecoder(type).convertFrom(reader);
         return rs;
     }
 
@@ -133,23 +133,6 @@ public final class JsonConvert extends Convert<JsonReader, JsonWriter> {
         return result;
     }
 
-    public void convertTo(final JsonWriter out, Object value) {
-        if (value == null) {
-            out.writeNull();
-        } else {
-            factory.loadEncoder(value.getClass()).convertTo(out, value);
-        }
-    }
-
-    public void convertTo(final JsonWriter out, final Type type, Object value) {
-        if (type == null) return;
-        if (value == null) {
-            out.writeNull();
-        } else {
-            factory.loadEncoder(type).convertTo(out, value);
-        }
-    }
-
     public void convertTo(final OutputStream out, Object value) {
         if (value == null) {
             new JsonStreamWriter(tiny, out).writeNull();
@@ -189,6 +172,23 @@ public final class JsonConvert extends Convert<JsonReader, JsonWriter> {
         return out.toBuffers();
     }
 
+    public void convertTo(final JsonWriter writer, Object value) {
+        if (value == null) {
+            writer.writeNull();
+        } else {
+            factory.loadEncoder(value.getClass()).convertTo(writer, value);
+        }
+    }
+
+    public void convertTo(final JsonWriter writer, final Type type, Object value) {
+        if (type == null) return;
+        if (value == null) {
+            writer.writeNull();
+        } else {
+            factory.loadEncoder(type).convertTo(writer, value);
+        }
+    }
+
     public JsonWriter convertToWriter(Object value) {
         if (value == null) return null;
         return convertToWriter(value.getClass(), value);
diff --git a/src/org/redkale/net/sncp/SncpClient.java b/src/org/redkale/net/sncp/SncpClient.java
index 8bfa1ab16..1c0190ab0 100644
--- a/src/org/redkale/net/sncp/SncpClient.java
+++ b/src/org/redkale/net/sncp/SncpClient.java
@@ -1,7 +1,7 @@
 /*
- * To change this license header, choose License Headers in Project Properties.
+ * To change this license header, choose License Headers reader Project Properties.
  * To change this template file, choose Tools | Templates
- * and open the template in the editor.
+ * and open the template reader the editor.
  */
 package org.redkale.net.sncp;
 
@@ -236,20 +236,20 @@ public final class SncpClient {
         if (action.handlerFuncParamIndex >= 0) params[action.handlerFuncParamIndex] = null;
         Future<byte[]> future = remote0(handlerFunc, convert, transport, action, params);
         if (handlerFunc != null) return null;
-        final BsonReader in = convert.pollBsonReader();
+        final BsonReader reader = convert.pollBsonReader();
         try {
-            in.setBytes(future.get(5, TimeUnit.SECONDS));
+            reader.setBytes(future.get(5, TimeUnit.SECONDS));
             byte i;
-            while ((i = in.readByte()) != 0) {
+            while ((i = reader.readByte()) != 0) {
                 final Attribute attr = action.paramAttrs[i];
-                attr.set(params[i - 1], convert.convertFrom(in, attr.type()));
+                attr.set(params[i - 1], convert.convertFrom(attr.type(), reader));
             }
-            return convert.convertFrom(in, action.resultTypes);
+            return convert.convertFrom(action.resultTypes, reader);
         } catch (InterruptedException | ExecutionException | TimeoutException e) {
             logger.log(Level.SEVERE, actions[index].method + " sncp (params: " + jsonConvert.convertTo(params) + ") remote error", e);
             throw new RuntimeException(actions[index].method + " sncp remote error", e);
         } finally {
-            convert.offerBsonReader(in);
+            convert.offerBsonReader(reader);
         }
     }
 
@@ -377,20 +377,20 @@ public final class SncpClient {
                         transport.offerConnection(false, conn);
                         if (handler != null) {
                             final Object handlerAttach = action.handlerAttachParamIndex >= 0 ? params[action.handlerAttachParamIndex] : null;
-                            final BsonReader in = convert.pollBsonReader();
+                            final BsonReader reader = convert.pollBsonReader();
                             try {
-                                in.setBytes(this.body);
+                                reader.setBytes(this.body);
                                 byte i;
-                                while ((i = in.readByte()) != 0) {
+                                while ((i = reader.readByte()) != 0) {
                                     final Attribute attr = action.paramAttrs[i];
-                                    attr.set(params[i - 1], convert.convertFrom(in, attr.type()));
+                                    attr.set(params[i - 1], convert.convertFrom(attr.type(), reader));
                                 }
-                                Object rs = convert.convertFrom(in, action.resultTypes);
+                                Object rs = convert.convertFrom(action.resultTypes, reader);
                                 handler.completed(rs, handlerAttach);
                             } catch (Exception e) {
                                 handler.failed(e, handlerAttach);
                             } finally {
-                                convert.offerBsonReader(in);
+                                convert.offerBsonReader(reader);
                             }
                         }
                     }