diff --git a/src/org/redkale/net/http/BasedHttpServlet.java b/src/org/redkale/net/http/BasedHttpServlet.java
index 2c0832b92..cd30e8542 100644
--- a/src/org/redkale/net/http/BasedHttpServlet.java
+++ b/src/org/redkale/net/http/BasedHttpServlet.java
@@ -17,6 +17,7 @@ import java.nio.*;
 import java.util.*;
 import java.util.concurrent.*;
 import jdk.internal.org.objectweb.asm.*;
+import static jdk.internal.org.objectweb.asm.ClassWriter.COMPUTE_FRAMES;
 import static jdk.internal.org.objectweb.asm.Opcodes.*;
 
 /**
@@ -191,7 +192,7 @@ public abstract class BasedHttpServlet extends HttpServlet {
             }
         }
         //------------------------------------------------------------------------------
-        ClassWriter cw = new ClassWriter(0);
+        ClassWriter cw = new ClassWriter(COMPUTE_FRAMES);
         FieldVisitor fv;
         MethodVisitor mv;
         AnnotationVisitor av0;
diff --git a/src/org/redkale/net/sncp/SncpDynServlet.java b/src/org/redkale/net/sncp/SncpDynServlet.java
index 34eb3d740..fb79cf9a7 100644
--- a/src/org/redkale/net/sncp/SncpDynServlet.java
+++ b/src/org/redkale/net/sncp/SncpDynServlet.java
@@ -15,6 +15,7 @@ import java.util.function.*;
 import java.util.logging.*;
 import javax.annotation.*;
 import jdk.internal.org.objectweb.asm.*;
+import static jdk.internal.org.objectweb.asm.ClassWriter.COMPUTE_FRAMES;
 import static jdk.internal.org.objectweb.asm.Opcodes.*;
 import jdk.internal.org.objectweb.asm.Type;
 import org.redkale.convert.bson.*;
@@ -24,7 +25,7 @@ import org.redkale.service.DynCall;
 
 /**
  *
- * 
+ *
  * 详情见: http://redkale.org
  *
  * @author zhangjx
@@ -161,14 +162,14 @@ public final class SncpDynServlet extends SncpServlet {
          * <blockquote><pre>
          *  public class TestService implements Service {
          *      public boolean change(TestBean bean, String name, int id) {
-         * 
+         *
          *      }
          *  }
-         * 
+         *
          *  public class DynActionTestService_change extends SncpServletAction {
-         * 
+         *
          *      public TestService service;
-         * 
+         *
          *      &#64;Override
          *      public void action(final BsonReader in, final BsonWriter out) throws Throwable {
          *          TestBean arg1 = convert.convertFrom(paramTypes[1], in);
@@ -181,9 +182,9 @@ public final class SncpDynServlet extends SncpServlet {
          *  }
          * </pre></blockquote>
          *
-         * @param service  Service
+         * @param service Service
          * @param actionid 操作ID
-         * @param method   方法
+         * @param method 方法
          *
          * @return SncpServletAction
          */
@@ -207,7 +208,7 @@ public final class SncpDynServlet extends SncpServlet {
                 }
             }
             //-------------------------------------------------------------
-            ClassWriter cw = new ClassWriter(0);
+            ClassWriter cw = new ClassWriter(COMPUTE_FRAMES);
             FieldVisitor fv;
             AsmMethodVisitor mv;
 
@@ -371,9 +372,8 @@ public final class SncpDynServlet extends SncpServlet {
                     mv.visitMethodInsn(INVOKEVIRTUAL, convertName, "convertTo", "(" + convertWriterDesc + "Ljava/lang/reflect/Type;Ljava/lang/Object;)V", false);
                     mv.visitInsn(RETURN);
                     store++;
-                    if (maxStack < 10) maxStack = 10;
                 }
-                mv.visitMaxs(maxStack + 10, store + 10);
+                mv.visitMaxs(maxStack, store);
                 mv.visitEnd();
             }
             cw.visitEnd();
diff --git a/src/org/redkale/util/Attribute.java b/src/org/redkale/util/Attribute.java
index f7f2a2908..ad7e22bc0 100644
--- a/src/org/redkale/util/Attribute.java
+++ b/src/org/redkale/util/Attribute.java
@@ -8,6 +8,7 @@ package org.redkale.util;
 import java.util.*;
 import java.util.function.*;
 import jdk.internal.org.objectweb.asm.*;
+import static jdk.internal.org.objectweb.asm.ClassWriter.COMPUTE_FRAMES;
 import static jdk.internal.org.objectweb.asm.Opcodes.*;
 
 /**
@@ -442,7 +443,7 @@ public interface Attribute<T, F> {
         } catch (Throwable ex) {
         }
         //---------------------------------------------------
-        final ClassWriter cw = new ClassWriter(0);
+        final ClassWriter cw = new ClassWriter(COMPUTE_FRAMES);
         MethodVisitor mv;
 
         cw.visit(V1_8, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, newDynName, "Ljava/lang/Object;L" + supDynName + "<" + interDesc + columnDesc + ">;", "java/lang/Object", new String[]{supDynName});
diff --git a/src/org/redkale/util/Reproduce.java b/src/org/redkale/util/Reproduce.java
index 7081d1086..8f54c3be8 100644
--- a/src/org/redkale/util/Reproduce.java
+++ b/src/org/redkale/util/Reproduce.java
@@ -4,6 +4,7 @@ import java.lang.reflect.Modifier;
 import java.util.function.Predicate;
 import static jdk.internal.org.objectweb.asm.Opcodes.*;
 import jdk.internal.org.objectweb.asm.*;
+import static jdk.internal.org.objectweb.asm.ClassWriter.COMPUTE_FRAMES;
 
 /**
  *
@@ -41,7 +42,7 @@ public interface Reproduce<D, S> {
         } catch (Exception ex) {
         }
         // ------------------------------------------------------------------------------
-        ClassWriter cw = new ClassWriter(0);
+        ClassWriter cw = new ClassWriter(COMPUTE_FRAMES);
         FieldVisitor fv;
         MethodVisitor mv;
         AnnotationVisitor av0;
diff --git a/src/org/redkale/util/TypeToken.java b/src/org/redkale/util/TypeToken.java
index 5e9780e7d..dd3ecffe5 100644
--- a/src/org/redkale/util/TypeToken.java
+++ b/src/org/redkale/util/TypeToken.java
@@ -8,6 +8,7 @@ import java.lang.reflect.Type;
 import java.lang.reflect.*;
 import java.util.*;
 import jdk.internal.org.objectweb.asm.*;
+import static jdk.internal.org.objectweb.asm.ClassWriter.COMPUTE_FRAMES;
 import static jdk.internal.org.objectweb.asm.Opcodes.*;
 
 /**
@@ -139,7 +140,7 @@ public abstract class TypeToken<T> {
                 break;
             }
         }
-        ClassWriter cw = new ClassWriter(0);
+        ClassWriter cw = new ClassWriter(COMPUTE_FRAMES);
         FieldVisitor fv;
         MethodVisitor mv;
         cw.visit(V1_8, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, newDynName, null, "java/lang/Object", null);