diff --git a/src/main/java/org/redkale/asm/AsmMethodBean.java b/src/main/java/org/redkale/asm/AsmMethodBean.java
index 6368d828e..17e5a2ff9 100644
--- a/src/main/java/org/redkale/asm/AsmMethodBean.java
+++ b/src/main/java/org/redkale/asm/AsmMethodBean.java
@@ -92,7 +92,8 @@ public class AsmMethodBean {
             return null;
         }
         Parameter[] ps = method == null ? null : method.getParameters();
-        String[] rs = new String[params.size()];
+        // params包含了throws, size()可能比ps.length大
+        String[] rs = new String[ps == null ? params.size() : ps.length];
         for (int i = 0; i < rs.length; i++) {
             Param pann = ps == null ? null : ps[i].getAnnotation(Param.class);
             rs[i] = pann == null ? params.get(i).getName() : pann.value();
diff --git a/src/main/java/org/redkale/asm/AsmMethodBoost.java b/src/main/java/org/redkale/asm/AsmMethodBoost.java
index eac2d0b2a..2443b6133 100644
--- a/src/main/java/org/redkale/asm/AsmMethodBoost.java
+++ b/src/main/java/org/redkale/asm/AsmMethodBoost.java
@@ -118,8 +118,7 @@ public abstract class AsmMethodBoost<T> {
      * @param newDynName 动态新类名
      * @param fieldPrefix 动态字段的前缀
      */
-    public void doAfterMethods(
-            RedkaleClassLoader classLoader, ClassWriter cw, String newDynName, String fieldPrefix) {}
+    public void doAfterMethods(RedkaleClassLoader classLoader, ClassWriter cw, String newDynName, String fieldPrefix) {}
 
     /**
      * 处理所有动态方法后调用
@@ -437,14 +436,23 @@ public abstract class AsmMethodBoost<T> {
         // 返回的List中参数列表可能会比方法参数量多，因为方法内的临时变量也会存入list中， 所以需要list的元素集合比方法的参数多
         static Map<String, AsmMethodBean> getMethodParamNames(Map<String, AsmMethodBean> map, Class clazz) {
             String n = clazz.getName();
-            InputStream in = clazz.getResourceAsStream(n.substring(n.lastIndexOf('.') + 1) + ".class");
-            if (in == null) {
-                return map;
+            byte[] bs = RedkaleClassLoader.getDynClassBytes(n);
+            if (bs == null) {
+                InputStream in = clazz.getResourceAsStream(n.substring(n.lastIndexOf('.') + 1) + ".class");
+                if (in == null) {
+                    return map;
+                }
+                try {
+                    bs = Utility.readBytesThenClose(in);
+                } catch (Exception e) {
+                    // do nothing
+                }
             }
             try {
-                new ClassReader(Utility.readBytesThenClose(in))
-                        .accept(new MethodParamClassVisitor(Opcodes.ASM6, clazz, map), 0);
-            } catch (Exception e) { // 无需理会
+                new ClassReader(bs).accept(new MethodParamClassVisitor(Opcodes.ASM6, clazz, map), 0);
+            } catch (Exception e) {
+                e.printStackTrace();
+                // do nothing
             }
             Class superClass = clazz.getSuperclass();
             if (superClass == null || superClass == Object.class) { // 接口的getSuperclass为null
diff --git a/src/main/java/org/redkale/boot/AppConfig.java b/src/main/java/org/redkale/boot/AppConfig.java
index c313a0723..8837f30af 100644
--- a/src/main/java/org/redkale/boot/AppConfig.java
+++ b/src/main/java/org/redkale/boot/AppConfig.java
@@ -143,15 +143,14 @@ class AppConfig {
             if (cacheClasses == null) {
                 this.classLoader = new RedkaleClassLoader(currClassLoader);
             } else {
-                this.classLoader = new RedkaleClassLoader.RedkaleCacheClassLoader(
-                        RedkaleClassLoader.getRedkaleClassLoader(currClassLoader), cacheClasses);
+                this.classLoader = new RedkaleClassLoader.RedkaleCacheClassLoader(currClassLoader, cacheClasses);
             }
             Thread.currentThread().setContextClassLoader(this.classLoader);
         }
         if (compileMode || this.classLoader instanceof RedkaleClassLoader.RedkaleCacheClassLoader) {
             this.serverClassLoader = this.classLoader;
         } else {
-            //this.serverClassLoader = RedkaleClassLoader.getRedkaleClassLoader(this.classLoader);
+            // this.serverClassLoader = RedkaleClassLoader.getRedkaleClassLoader(this.classLoader);
             this.serverClassLoader = this.classLoader;
         }
     }
diff --git a/src/main/java/org/redkale/boot/Application.java b/src/main/java/org/redkale/boot/Application.java
index a81c590ed..700a7f71f 100644
--- a/src/main/java/org/redkale/boot/Application.java
+++ b/src/main/java/org/redkale/boot/Application.java
@@ -828,7 +828,7 @@ public final class Application {
 
         ExecutorService clientWorkExecutor = this.workExecutor;
         if (executorName.contains("VirtualExecutor") || executorName.contains("PerTaskExecutor")) {
-            executorLog.append(", clientWorkExecutor: [workExecutor]");
+            executorLog.append(", clientWorkExecutor: [virtual]");
         } else {
             // 给所有client给一个新的默认ExecutorService
             int clientThreads = executorConf.getIntValue("clients", WorkThread.DEFAULT_WORK_POOL_SIZE);
diff --git a/src/main/java/org/redkale/convert/json/JsonDynEncoder.java b/src/main/java/org/redkale/convert/json/JsonDynEncoder.java
index 7f18afc21..6d779e700 100644
--- a/src/main/java/org/redkale/convert/json/JsonDynEncoder.java
+++ b/src/main/java/org/redkale/convert/json/JsonDynEncoder.java
@@ -71,8 +71,7 @@ public abstract class JsonDynEncoder<T> extends ObjectEncoder<JsonWriter, T> {
                 + clazz.getName().replace('.', '_').replace('$', '_') + "_" + factory.getFeatures() + "_"
                 + Utility.md5Hex(elementb.toString()); // tiny必须要加上, 同一个类会有多个字段定制Convert
         try {
-            Class clz = loader.findDynClass(newDynName.replace('/', '.'));
-            Class newClazz = clz == null ? loader.loadClass(newDynName.replace('/', '.')) : clz;
+            Class newClazz = loader.loadClass(newDynName.replace('/', '.'));
             JsonDynEncoder resultEncoder =
                     (JsonDynEncoder) newClazz.getConstructor(JsonFactory.class, Type.class, ObjectEncoder.class)
                             .newInstance(factory, clazz, selfObjEncoder);
@@ -681,7 +680,6 @@ public abstract class JsonDynEncoder<T> extends ObjectEncoder<JsonWriter, T> {
         // ------------------------------------------------------------------------------
         byte[] bytes = cw.toByteArray();
         Class<?> newClazz = loader.loadClass(newDynName.replace('/', '.'), bytes);
-        loader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionDeclaredConstructors(
                 newClazz, newDynName.replace('/', '.'), JsonFactory.class, Type.class);
         try {
diff --git a/src/main/java/org/redkale/convert/pb/ProtobufDynEncoder.java b/src/main/java/org/redkale/convert/pb/ProtobufDynEncoder.java
index 7e1195f8a..05a162854 100644
--- a/src/main/java/org/redkale/convert/pb/ProtobufDynEncoder.java
+++ b/src/main/java/org/redkale/convert/pb/ProtobufDynEncoder.java
@@ -74,8 +74,7 @@ public abstract class ProtobufDynEncoder<T> extends ProtobufObjectEncoder<T> {
                 + clazz.getName().replace('.', '_').replace('$', '_') + "_" + factory.getFeatures() + "_"
                 + Utility.md5Hex(elementb.toString()); // tiny必须要加上, 同一个类会有多个字段定制Convert
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            Class newClazz = clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz;
+            Class newClazz = classLoader.loadClass(newDynName.replace('/', '.'));
             ProtobufDynEncoder resultEncoder = (ProtobufDynEncoder)
                     newClazz.getConstructor(ProtobufFactory.class, Type.class, ProtobufObjectEncoder.class)
                             .newInstance(factory, clazz, selfObjEncoder);
@@ -322,7 +321,6 @@ public abstract class ProtobufDynEncoder<T> extends ProtobufObjectEncoder<T> {
 
         byte[] bytes = cw.toByteArray();
         Class<ProtobufDynEncoder> newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
         try {
             ProtobufDynEncoder resultEncoder = (ProtobufDynEncoder)
diff --git a/src/main/java/org/redkale/mq/spi/MessageAsmMethodBoost.java b/src/main/java/org/redkale/mq/spi/MessageAsmMethodBoost.java
index 584a32145..736aae22e 100644
--- a/src/main/java/org/redkale/mq/spi/MessageAsmMethodBoost.java
+++ b/src/main/java/org/redkale/mq/spi/MessageAsmMethodBoost.java
@@ -328,7 +328,6 @@ public class MessageAsmMethodBoost extends AsmMethodBoost {
             consumerBytes.forEach((innerFullName, bytes) -> {
                 String clzName = innerFullName.replace('/', '.');
                 Class clazz = classLoader.loadClass(clzName, bytes);
-                classLoader.putDynClass(clzName, bytes, clazz);
                 RedkaleClassLoader.putReflectionPublicConstructors(clazz, clzName);
                 AnnotationVisitor av2 =
                         av1.visitAnnotation(null, org.redkale.asm.Type.getDescriptor(DynForMessaged.class));
diff --git a/src/main/java/org/redkale/mq/spi/MessageModuleEngine.java b/src/main/java/org/redkale/mq/spi/MessageModuleEngine.java
index 231151927..77560fc71 100644
--- a/src/main/java/org/redkale/mq/spi/MessageModuleEngine.java
+++ b/src/main/java/org/redkale/mq/spi/MessageModuleEngine.java
@@ -459,7 +459,6 @@ public class MessageModuleEngine extends ModuleEngine {
                 try {
                     String clzName = innerFullName.replace('/', '.');
                     Class<? extends MessageConsumer> clazz = classLoader.loadClass(clzName, bytes);
-                    classLoader.putDynClass(clzName, bytes, clazz);
                     RedkaleClassLoader.putReflectionPublicConstructors(clazz, clzName);
                     MessageConsumer consumer = (MessageConsumer) clazz.getConstructors()[0].newInstance(service);
                     addMessageConsumer(consumer);
diff --git a/src/main/java/org/redkale/net/http/HttpContext.java b/src/main/java/org/redkale/net/http/HttpContext.java
index 48ad2295b..8e80dc743 100644
--- a/src/main/java/org/redkale/net/http/HttpContext.java
+++ b/src/main/java/org/redkale/net/http/HttpContext.java
@@ -110,9 +110,7 @@ public class HttpContext extends Context {
                 + handlerClass.getName().replace('.', '/').replace('$', '_');
         RedkaleClassLoader classLoader = RedkaleClassLoader.getRedkaleClassLoader();
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            Class newHandlerClazz = clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz;
-            return Creator.create(newHandlerClazz);
+            return (Creator<H>) Creator.create(classLoader.loadClass(newDynName.replace('/', '.')));
         } catch (Throwable ex) {
             // do nothing
         }
@@ -214,7 +212,6 @@ public class HttpContext extends Context {
         cw.visitEnd();
         byte[] bytes = cw.toByteArray();
         Class<CompletionHandler> newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         return (Creator<H>) Creator.create(newClazz);
     }
 
diff --git a/src/main/java/org/redkale/net/http/HttpServlet.java b/src/main/java/org/redkale/net/http/HttpServlet.java
index 45bb6d527..71ee3ac46 100644
--- a/src/main/java/org/redkale/net/http/HttpServlet.java
+++ b/src/main/java/org/redkale/net/http/HttpServlet.java
@@ -564,10 +564,10 @@ public class HttpServlet extends Servlet<HttpContext, HttpRequest, HttpResponse>
         final String newDynName = "org/redkaledyn/http/servlet/action/_DynHttpActionServlet__"
                 + this.getClass().getName().replace('.', '_').replace('$', '_') + "__" + method.getName() + tmpps;
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            Class newClazz = clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz;
-            HttpServlet instance =
-                    (HttpServlet) newClazz.getDeclaredConstructor().newInstance();
+            HttpServlet instance = (HttpServlet) classLoader
+                    .loadClass(newDynName.replace('/', '.'))
+                    .getDeclaredConstructor()
+                    .newInstance();
             instance.getClass().getField("_factServlet").set(instance, this);
             return instance;
         } catch (Throwable ex) {
@@ -627,7 +627,6 @@ public class HttpServlet extends Servlet<HttpContext, HttpRequest, HttpResponse>
         // ------------------------------------------------------------------------------
         byte[] bytes = cw.toByteArray();
         Class<?> newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
         try {
             HttpServlet instance =
@@ -636,7 +635,7 @@ public class HttpServlet extends Servlet<HttpContext, HttpRequest, HttpResponse>
             field.set(instance, this);
             RedkaleClassLoader.putReflectionField(newDynName.replace('/', '.'), field);
             NonBlocking non = method.getAnnotation(NonBlocking.class);
-            instance._nonBlocking = typeNonBlocking ? (non == null ? typeNonBlocking : non.value()) : false;
+            instance._nonBlocking = typeNonBlocking && (non == null ? typeNonBlocking : non.value());
             return instance;
         } catch (Exception ex) {
             throw new HttpException(ex);
diff --git a/src/main/java/org/redkale/net/http/Rest.java b/src/main/java/org/redkale/net/http/Rest.java
index d38185f62..ae8c408da 100644
--- a/src/main/java/org/redkale/net/http/Rest.java
+++ b/src/main/java/org/redkale/net/http/Rest.java
@@ -455,10 +455,7 @@ public final class Rest {
         final String newDynConsumerSimpleName = "_DynRestOnMessageConsumer";
         final String newDynConsumerFullName = newDynName + "$" + newDynConsumerSimpleName;
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            if (clz == null) {
-                clz = classLoader.loadClass(newDynName.replace('/', '.'));
-            }
+            Class clz = classLoader.loadClass(newDynName.replace('/', '.'));
             T servlet = (T) clz.getDeclaredConstructor().newInstance();
             Map<String, Annotation[]> msgclassToAnnotations = new HashMap<>();
             for (int i = 0; i < messageMethods.size(); i++) { // _DyncXXXWebSocketMessage 子消息List
@@ -899,8 +896,7 @@ public final class Rest {
             }
             cw2.visitEnd();
             byte[] bytes = cw2.toByteArray();
-            Class cz = classLoader.loadClass((newDynSuperMessageFullName).replace('/', '.'), bytes);
-            classLoader.putDynClass((newDynSuperMessageFullName).replace('/', '.'), bytes, cz);
+            classLoader.loadClass((newDynSuperMessageFullName).replace('/', '.'), bytes);
         }
 
         if (wildcardMethod == null) { // _DynXXXWebSocketMessage class
@@ -957,8 +953,7 @@ public final class Rest {
             }
             cw2.visitEnd();
             byte[] bytes = cw2.toByteArray();
-            Class cz = classLoader.loadClass(newDynMessageFullName.replace('/', '.'), bytes);
-            classLoader.putDynClass(newDynMessageFullName.replace('/', '.'), bytes, cz);
+            classLoader.loadClass(newDynMessageFullName.replace('/', '.'), bytes);
         }
 
         { // _DynXXXWebSocket class
@@ -1000,8 +995,7 @@ public final class Rest {
             }
             cw2.visitEnd();
             byte[] bytes = cw2.toByteArray();
-            Class cz = classLoader.loadClass(newDynWebSokcetFullName.replace('/', '.'), bytes);
-            classLoader.putDynClass(newDynWebSokcetFullName.replace('/', '.'), bytes, cz);
+            classLoader.loadClass(newDynWebSokcetFullName.replace('/', '.'), bytes);
         }
 
         { // _DynRestOnMessageConsumer class
@@ -1108,14 +1102,12 @@ public final class Rest {
             }
             cw2.visitEnd();
             byte[] bytes = cw2.toByteArray();
-            Class cz = classLoader.loadClass(newDynConsumerFullName.replace('/', '.'), bytes);
-            classLoader.putDynClass(newDynConsumerFullName.replace('/', '.'), bytes, cz);
+            classLoader.loadClass(newDynConsumerFullName.replace('/', '.'), bytes);
         }
         cw.visitEnd();
 
         byte[] bytes = cw.toByteArray();
         Class<?> newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
         JsonFactory.root().loadDecoder(newClazz.getAnnotation(RestDyn.class).types()[2]); // 固定Message类
 
@@ -1301,10 +1293,7 @@ public final class Rest {
                 + (namePostfix.isEmpty() ? "" : ("_" + namePostfix) + "DynServlet");
 
         try {
-            Class newClazz = classLoader.findClass(newDynName.replace('/', '.'));
-            if (newClazz == null) {
-                newClazz = classLoader.loadClass(newDynName.replace('/', '.'));
-            }
+            Class newClazz = classLoader.loadClass(newDynName.replace('/', '.'));
             T obj = (T) newClazz.getDeclaredConstructor().newInstance();
 
             final String defModuleName = getWebModuleNameLowerCase(serviceType);
@@ -4234,16 +4223,15 @@ public final class Rest {
         byte[] bytes = cw.toByteArray();
         classLoader.addDynClass(newDynName.replace('/', '.'), bytes);
         try {
-            Class<?> newClazz = classLoader.findClass(newDynName.replace('/', '.'));
+            Class<?> newClazz = classLoader.loadClass(newDynName.replace('/', '.'));
             innerClassBytesMap.forEach((n, bs) -> {
                 try {
-                    classLoader.putDynClass(n, bs, classLoader.findClass(n));
+                    classLoader.loadClass(n, bs);
                     RedkaleClassLoader.putReflectionClass(n);
                 } catch (Exception e) {
                     throw new RestException(e);
                 }
             });
-            classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
             RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
             for (java.lang.reflect.Type t : retvalTypes) {
                 JsonFactory.root().loadEncoder(t);
diff --git a/src/main/java/org/redkale/net/sncp/Sncp.java b/src/main/java/org/redkale/net/sncp/Sncp.java
index 99b81cb18..b881f3c9c 100644
--- a/src/main/java/org/redkale/net/sncp/Sncp.java
+++ b/src/main/java/org/redkale/net/sncp/Sncp.java
@@ -529,12 +529,9 @@ public abstract class Sncp {
         }
         // if (Utility.inNativeImage() || methodBoost == null) { // 加强动态时不能重复加载
         try {
-            final String newDynClass = newDynName.replace('/', '.');
-            return (Class<T>) classLoader.findClass(newDynClass);
-        } catch (ClassNotFoundException e) {
-            // do nothing
+            return (Class<T>)classLoader.loadClass(newDynName.replace('/', '.'));
         } catch (Throwable t) {
-            t.printStackTrace();
+            // do nothing
         }
         // }
         // ------------------------------------------------------------------------------
@@ -602,8 +599,6 @@ public abstract class Sncp {
         byte[] bytes = cw.toByteArray();
         final String newDynClass = newDynName.replace('/', '.');
         Class<?> newClazz = classLoader.loadClass(newDynClass, bytes);
-
-        classLoader.putDynClass(newDynClass, bytes, newClazz);
         RedkaleClassLoader.putReflectionPublicClasses(newDynClass);
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynClass);
         try {
@@ -953,9 +948,7 @@ public abstract class Sncp {
             newDynName += "_" + (normal ? name : hash(name));
         }
         try {
-            final String newDynClass = newDynName.replace('/', '.');
-            Class clz = classLoader.findDynClass(newDynClass);
-            Class newClazz = clz == null ? classLoader.loadClass(newDynClass) : clz;
+            Class newClazz = classLoader.loadClass(newDynName.replace('/', '.'));
             T service = (T) newClazz.getDeclaredConstructor().newInstance();
             {
                 Field c = newClazz.getDeclaredField(FIELDPREFIX + "_conf");
@@ -1237,7 +1230,6 @@ public abstract class Sncp {
         byte[] bytes = cw.toByteArray();
         final String newDynClass = newDynName.replace('/', '.');
         Class<?> newClazz = classLoader.loadClass(newDynClass, bytes);
-        classLoader.putDynClass(newDynClass, bytes, newClazz);
         RedkaleClassLoader.putReflectionPublicConstructors(newClazz, newDynClass);
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynClass);
         try {
diff --git a/src/main/java/org/redkale/net/sncp/SncpActionServlet.java b/src/main/java/org/redkale/net/sncp/SncpActionServlet.java
index 29771d703..ca51bca0c 100644
--- a/src/main/java/org/redkale/net/sncp/SncpActionServlet.java
+++ b/src/main/java/org/redkale/net/sncp/SncpActionServlet.java
@@ -359,8 +359,7 @@ public abstract class SncpActionServlet extends SncpServlet {
         RedkaleClassLoader classLoader = RedkaleClassLoader.getRedkaleClassLoader();
         Class<?> newClazz = null;
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            newClazz = clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz;
+            newClazz = classLoader.loadClass(newDynName.replace('/', '.'));
         } catch (Throwable ex) {
             // do nothing
         }
@@ -371,7 +370,8 @@ public abstract class SncpActionServlet extends SncpServlet {
                 TypeToken.getGenericType(method.getGenericReturnType(), serviceClass);
 
         final Class[] paramClasses = method.getParameterTypes();
-        java.lang.reflect.Type paramComposeBeanType0 = SncpRemoteAction.createParamComposeBeanType(classLoader, serviceImplClass, method, actionid, originalParamTypes, paramClasses);
+        java.lang.reflect.Type paramComposeBeanType0 = SncpRemoteAction.createParamComposeBeanType(
+                classLoader, serviceImplClass, method, actionid, originalParamTypes, paramClasses);
         if (paramComposeBeanType0 != null && paramComposeBeanType0 == originalParamTypes[0]) {
             paramComposeBeanType0 = null;
         }
@@ -712,7 +712,6 @@ public abstract class SncpActionServlet extends SncpServlet {
 
             byte[] bytes = cw.toByteArray();
             newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-            classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
             RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
 
             try {
diff --git a/src/main/java/org/redkale/net/sncp/SncpAsyncHandler.java b/src/main/java/org/redkale/net/sncp/SncpAsyncHandler.java
index 263910d41..fd0ce0e7f 100644
--- a/src/main/java/org/redkale/net/sncp/SncpAsyncHandler.java
+++ b/src/main/java/org/redkale/net/sncp/SncpAsyncHandler.java
@@ -56,8 +56,7 @@ public interface SncpAsyncHandler<V, A> extends CompletionHandler<V, A> {
                             + "__" + handlerClass.getName().replace('.', '/').replace('$', '_');
                     RedkaleClassLoader classLoader = RedkaleClassLoader.getRedkaleClassLoader();
                     try {
-                        Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-                        Class newHandlerClazz = clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz;
+                        Class newHandlerClazz = classLoader.loadClass(newDynName.replace('/', '.'));
                         return (Creator<SncpAsyncHandler>) Creator.create(newHandlerClazz);
                     } catch (Throwable ex) {
                         // do nothing
@@ -207,7 +206,6 @@ public interface SncpAsyncHandler<V, A> extends CompletionHandler<V, A> {
                     cw.visitEnd();
                     byte[] bytes = cw.toByteArray();
                     Class newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-                    classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
                     return (Creator<SncpAsyncHandler>) Creator.create(newClazz);
                 })
                 .create(factHandler);
diff --git a/src/main/java/org/redkale/net/sncp/SncpRemoteAction.java b/src/main/java/org/redkale/net/sncp/SncpRemoteAction.java
index c281b9222..02bd1c5da 100644
--- a/src/main/java/org/redkale/net/sncp/SncpRemoteAction.java
+++ b/src/main/java/org/redkale/net/sncp/SncpRemoteAction.java
@@ -273,9 +273,7 @@ public final class SncpRemoteAction {
         final String newDynName = "org/redkaledyn/sncp/servlet/action/_DynSncpActionParamBean_"
                 + resourceType.getSimpleName() + "_" + method.getName() + "_" + actionid;
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            Class<?> newClazz = clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz;
-            return newClazz;
+            return classLoader.loadClass(newDynName.replace('/', '.'));
         } catch (Throwable ex) {
             // do nothing
         }
@@ -328,7 +326,6 @@ public final class SncpRemoteAction {
 
         byte[] bytes = cw.toByteArray();
         Class newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
         Creator.load(newClazz, 1); // 只一个Object[]参数
         ProtobufFactory.root().loadDecoder(newClazz);
diff --git a/src/main/java/org/redkale/source/EntityFullFunc.java b/src/main/java/org/redkale/source/EntityFullFunc.java
index 297d35f27..d75e469d5 100644
--- a/src/main/java/org/redkale/source/EntityFullFunc.java
+++ b/src/main/java/org/redkale/source/EntityFullFunc.java
@@ -84,8 +84,8 @@ public abstract class EntityFullFunc<T> {
         final String newDynName = "org/redkaledyn/source/_Dyn" + EntityFullFunc.class.getSimpleName() + "__"
                 + entityType.getName().replace('.', '_').replace('$', '_');
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            return (EntityFullFunc) (clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz)
+            return (EntityFullFunc) classLoader
+                    .loadClass(newDynName.replace('/', '.'))
                     .getConstructor(Class.class, Creator.class, Attribute[].class)
                     .newInstance(entityType, creator, attrs);
         } catch (Throwable ex) {
@@ -794,7 +794,6 @@ public abstract class EntityFullFunc<T> {
 
         byte[] bytes = cw.toByteArray();
         Class<EntityFullFunc> newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
         try {
             return newClazz.getConstructor(Class.class, Creator.class, Attribute[].class)
diff --git a/src/main/java/org/redkale/source/spi/DataSqlMapperBuilder.java b/src/main/java/org/redkale/source/spi/DataSqlMapperBuilder.java
index ad46d897a..c229c651b 100644
--- a/src/main/java/org/redkale/source/spi/DataSqlMapperBuilder.java
+++ b/src/main/java/org/redkale/source/spi/DataSqlMapperBuilder.java
@@ -66,8 +66,7 @@ public final class DataSqlMapperBuilder {
         final String newDynName = "org/redkaledyn/source/mapper/_DynDataSqlMapper_"
                 + mapperType.getName().replace('.', '_').replace('$', '_');
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            Class newClazz = clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz;
+            Class newClazz = classLoader.loadClass(newDynName.replace('/', '.'));
             M mapper = (M) newClazz.getDeclaredConstructor().newInstance();
             { // DataSqlSource
                 Field c = newClazz.getDeclaredField("_source");
@@ -364,7 +363,6 @@ public final class DataSqlMapperBuilder {
 
         byte[] bytes = cw.toByteArray();
         Class<?> newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionPublicConstructors(newClazz, newDynName.replace('/', '.'));
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
         try {
diff --git a/src/main/java/org/redkale/util/Attribute.java b/src/main/java/org/redkale/util/Attribute.java
index 2876d240e..407419946 100644
--- a/src/main/java/org/redkale/util/Attribute.java
+++ b/src/main/java/org/redkale/util/Attribute.java
@@ -1021,8 +1021,8 @@ public interface Attribute<T, F> {
         final String newDynName = "org/redkaledyn/attribute/" + pkgname + "_Dyn" + Attribute.class.getSimpleName()
                 + "__" + clzname + "__" + fieldkey.substring(fieldkey.indexOf('.') + 1);
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            Attribute rs = (Attribute) (clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz)
+            Attribute rs = (Attribute) classLoader
+                    .loadClass(newDynName.replace('/', '.'))
                     .getDeclaredConstructor()
                     .newInstance();
             java.lang.reflect.Field _gtype = rs.getClass().getDeclaredField("_gtype");
@@ -1234,7 +1234,6 @@ public interface Attribute<T, F> {
 
         byte[] bytes = cw.toByteArray();
         Class<Attribute> newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
         try {
             Attribute rs = newClazz.getDeclaredConstructor().newInstance();
diff --git a/src/main/java/org/redkale/util/Copier.java b/src/main/java/org/redkale/util/Copier.java
index 0ede7b3d8..c7def0d97 100644
--- a/src/main/java/org/redkale/util/Copier.java
+++ b/src/main/java/org/redkale/util/Copier.java
@@ -688,8 +688,8 @@ public interface Copier<S, D> extends BiFunction<S, D, D> {
                         : ("__" + destClass.getName().replace('.', '_').replace('$', '_')))
                 + (extendInfo.length() == 0 ? "" : Utility.md5Hex(extendInfo.toString()));
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            return (Copier) (clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz)
+            return (Copier) classLoader
+                    .loadClass(newDynName.replace('/', '.'))
                     .getDeclaredConstructor()
                     .newInstance();
         } catch (Throwable ex) {
@@ -698,10 +698,7 @@ public interface Copier<S, D> extends BiFunction<S, D, D> {
 
         // ------------------------------------------------------------------------------
         ClassWriter cw = new ClassWriter(COMPUTE_FRAMES);
-        FieldVisitor fv;
         MethodVisitor mv;
-        AnnotationVisitor av0;
-
         cw.visit(
                 V11,
                 ACC_PUBLIC + ACC_FINAL + ACC_SUPER,
@@ -1338,7 +1335,6 @@ public interface Copier<S, D> extends BiFunction<S, D, D> {
         // ------------------------------------------------------------------------------
         byte[] bytes = cw.toByteArray();
         Class<?> newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
         try {
             return (Copier) newClazz.getDeclaredConstructor().newInstance();
diff --git a/src/main/java/org/redkale/util/Creator.java b/src/main/java/org/redkale/util/Creator.java
index 2591b4491..5b16f47a0 100644
--- a/src/main/java/org/redkale/util/Creator.java
+++ b/src/main/java/org/redkale/util/Creator.java
@@ -296,8 +296,8 @@ public interface Creator<T> {
         final String newDynName = "org/redkaledyn/creator/_Dyn" + Creator.class.getSimpleName() + "__"
                 + clazz.getName().replace('.', '_').replace('$', '_') + (paramCount < 0 ? "" : ("_" + paramCount));
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            return (Creator) (clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz)
+            return (Creator) classLoader
+                    .loadClass(newDynName.replace('/', '.'))
                     .getDeclaredConstructor()
                     .newInstance();
         } catch (Throwable ex) {
@@ -569,7 +569,6 @@ public interface Creator<T> {
         byte[] bytes = cw.toByteArray();
         try {
             Class newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-            classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
             RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
             return (Creator) newClazz.getDeclaredConstructor().newInstance();
         } catch (Exception ex) {
diff --git a/src/main/java/org/redkale/util/Flows.java b/src/main/java/org/redkale/util/Flows.java
index 32e4175ae..16103fda5 100644
--- a/src/main/java/org/redkale/util/Flows.java
+++ b/src/main/java/org/redkale/util/Flows.java
@@ -115,55 +115,34 @@ public abstract class Flows {
         if (!"executable".equals(System.getProperty("org.graalvm.nativeimage.kind"))) { // not native-image
             try {
                 //
-                reactorMonoClass0 =
-                        Thread.currentThread().getContextClassLoader().loadClass("reactor.core.publisher.Mono");
+                RedkaleClassLoader classLoader = RedkaleClassLoader.getRedkaleClassLoader();
+                reactorMonoClass0 = classLoader.loadClass("reactor.core.publisher.Mono");
                 Class<Function<Object, CompletableFuture>> monoFuncClass = null;
                 try {
-                    monoFuncClass = (Class) Thread.currentThread()
-                            .getContextClassLoader()
-                            .loadClass("org.redkale.util.AnonymousMonoFutureFunction");
+                    monoFuncClass = classLoader.loadClass("org.redkale.util.AnonymousMonoFutureFunction");
                 } catch (Throwable t) {
                     // do nothing
                 }
                 if (monoFuncClass == null) {
                     byte[] classBytes = hexToBin(FUNCTION_MONO_FUTRUE_BINARY);
-                    monoFuncClass = (Class<Function<Object, CompletableFuture>>)
-                            new ClassLoader() {
-                                public final Class<?> loadClass(String name, byte[] b) {
-                                    return defineClass(name, b, 0, b.length);
-                                }
-                            }.loadClass("org.redkale.util.AnonymousMonoFutureFunction", classBytes);
-                    RedkaleClassLoader.getRedkaleClassLoader()
-                            .putDynClass(monoFuncClass.getName(), classBytes, monoFuncClass);
+                    monoFuncClass = classLoader.loadClass("org.redkale.util.AnonymousMonoFutureFunction", classBytes);
                 }
                 RedkaleClassLoader.putReflectionDeclaredConstructors(monoFuncClass, monoFuncClass.getName());
-                reactorMonoFunction0 = (Function<Object, CompletableFuture>)
-                        monoFuncClass.getDeclaredConstructor().newInstance();
+                reactorMonoFunction0 = monoFuncClass.getDeclaredConstructor().newInstance();
                 //
-                reactorFluxClass0 =
-                        Thread.currentThread().getContextClassLoader().loadClass("reactor.core.publisher.Flux");
+                reactorFluxClass0 = classLoader.loadClass("reactor.core.publisher.Flux");
                 Class<Function<Object, CompletableFuture>> fluxFuncClass = null;
                 try {
-                    fluxFuncClass = (Class) Thread.currentThread()
-                            .getContextClassLoader()
-                            .loadClass("org.redkale.util.AnonymousFluxFutureFunction");
+                    fluxFuncClass = classLoader.loadClass("org.redkale.util.AnonymousFluxFutureFunction");
                 } catch (Throwable t) {
                     // do nothing
                 }
                 if (fluxFuncClass == null) {
                     byte[] classBytes = hexToBin(FUNCTION_FLUX_FUTRUE_BINARY);
-                    fluxFuncClass = (Class<Function<Object, CompletableFuture>>)
-                            new ClassLoader() {
-                                public final Class<?> loadClass(String name, byte[] b) {
-                                    return defineClass(name, b, 0, b.length);
-                                }
-                            }.loadClass("org.redkale.util.AnonymousFluxFutureFunction", classBytes);
-                    RedkaleClassLoader.getRedkaleClassLoader()
-                            .putDynClass(fluxFuncClass.getName(), classBytes, fluxFuncClass);
+                    fluxFuncClass = classLoader.loadClass("org.redkale.util.AnonymousFluxFutureFunction", classBytes);
                 }
                 RedkaleClassLoader.putReflectionDeclaredConstructors(fluxFuncClass, fluxFuncClass.getName());
-                reactorFluxFunction0 = (Function<Object, CompletableFuture>)
-                        fluxFuncClass.getDeclaredConstructor().newInstance();
+                reactorFluxFunction0 = fluxFuncClass.getDeclaredConstructor().newInstance();
             } catch (Throwable t) {
                 // do nothing
             }
diff --git a/src/main/java/org/redkale/util/Inners.java b/src/main/java/org/redkale/util/Inners.java
index 9a9e87a0f..027ee2d51 100644
--- a/src/main/java/org/redkale/util/Inners.java
+++ b/src/main/java/org/redkale/util/Inners.java
@@ -235,8 +235,8 @@ class Inners {
             final String newDynName = "org/redkaledyn/creator/_DynArrayFunction__"
                     + clazz.getName().replace('.', '_').replace('$', '_');
             try {
-                Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-                return (IntFunction) (clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz)
+                return (IntFunction) classLoader
+                        .loadClass(newDynName.replace('/', '.'))
                         .getDeclaredConstructor()
                         .newInstance();
             } catch (Throwable ex) {
@@ -284,7 +284,6 @@ class Inners {
             final byte[] bytes = cw.toByteArray();
             try {
                 Class<?> resultClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-                classLoader.putDynClass(newDynName.replace('/', '.'), bytes, resultClazz);
                 RedkaleClassLoader.putReflectionDeclaredConstructors(resultClazz, newDynName.replace('/', '.'));
                 return (IntFunction<T[]>) resultClazz.getDeclaredConstructor().newInstance();
             } catch (Throwable ex) {
diff --git a/src/main/java/org/redkale/util/Invoker.java b/src/main/java/org/redkale/util/Invoker.java
index 78cde29b2..bbbe6d51f 100644
--- a/src/main/java/org/redkale/util/Invoker.java
+++ b/src/main/java/org/redkale/util/Invoker.java
@@ -99,8 +99,8 @@ public interface Invoker<C, R> {
         final String newDynName = "org/redkaledyn/invoker/_Dyn" + Invoker.class.getSimpleName() + "_"
                 + clazz.getName().replace('.', '_').replace('$', '_') + "_" + method.getName() + sbpts;
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            return (Invoker<C, T>) (clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz)
+            return (Invoker<C, T>) classLoader
+                    .loadClass(newDynName.replace('/', '.'))
                     .getDeclaredConstructor()
                     .newInstance();
         } catch (Throwable ex) {
@@ -204,13 +204,9 @@ public interface Invoker<C, R> {
             mv.visitEnd();
         }
         cw.visitEnd();
-        final byte[] bytes = cw.toByteArray();
-        Class<?> resultClazz = null;
+        byte[] bytes = cw.toByteArray();
         try {
-            if (resultClazz == null) {
-                resultClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-            }
-            classLoader.putDynClass(newDynName.replace('/', '.'), bytes, resultClazz);
+            Class<?> resultClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
             RedkaleClassLoader.putReflectionDeclaredConstructors(resultClazz, newDynName.replace('/', '.'));
             return (Invoker<C, T>) resultClazz.getDeclaredConstructor().newInstance();
         } catch (Exception ex) {
diff --git a/src/main/java/org/redkale/util/RedkaleClassLoader.java b/src/main/java/org/redkale/util/RedkaleClassLoader.java
index 86f38d555..3cf41b23c 100644
--- a/src/main/java/org/redkale/util/RedkaleClassLoader.java
+++ b/src/main/java/org/redkale/util/RedkaleClassLoader.java
@@ -175,28 +175,6 @@ public class RedkaleClassLoader extends URLClassLoader {
         }
     }
 
-    static void putDynClass0(String name, byte[] bs, Class clazz) {
-        Objects.requireNonNull(name);
-        Objects.requireNonNull(bs);
-        Objects.requireNonNull(clazz);
-        allDynClassTypeMap.put(name, clazz);
-        allDynClassBytesMap.put(name, bs);
-    }
-
-    public void putDynClass(String name, byte[] bs, Class clazz) {
-        Objects.requireNonNull(name);
-        Objects.requireNonNull(bs);
-        Objects.requireNonNull(clazz);
-        dynClassTypeMap.put(name, clazz);
-        dynClassBytesMap.put(name, bs);
-        allDynClassTypeMap.put(name, clazz);
-        allDynClassBytesMap.put(name, bs);
-    }
-
-    public Class findDynClass(String name) {
-        return dynClassTypeMap.get(name);
-    }
-
     public static void forEachDynClass(BiConsumer<String, byte[]> action) {
         allDynClassBytesMap.forEach(action);
     }
@@ -479,6 +457,10 @@ public class RedkaleClassLoader extends URLClassLoader {
         }
     }
 
+    public static byte[] getDynClassBytes(String clazzName) {
+        return allDynClassBytesMap.get(clazzName);
+    }
+
     // https://www.graalvm.org/reference-manual/native-image/Reflection/#manual-configuration
     private static Map<String, Object> createMap(String name, Class... cts) {
         Map<String, Object> map = new LinkedHashMap<>();
@@ -495,8 +477,44 @@ public class RedkaleClassLoader extends URLClassLoader {
         reflectionMap.forEach(action);
     }
 
+    static void putDynClass0(String name, byte[] bs, Class clazz) {
+        Objects.requireNonNull(name);
+        Objects.requireNonNull(bs);
+        Objects.requireNonNull(clazz);
+        allDynClassTypeMap.put(name, clazz);
+        allDynClassBytesMap.put(name, bs);
+    }
+
+    public void putDynClass2(String name, byte[] bs, Class clazz) {
+        Objects.requireNonNull(name);
+        Objects.requireNonNull(bs);
+        Objects.requireNonNull(clazz);
+        dynClassTypeMap.put(name, clazz);
+        dynClassBytesMap.put(name, bs);
+        allDynClassTypeMap.put(name, clazz);
+        allDynClassBytesMap.put(name, bs);
+    }
+
+    public Class loadClass(String name, byte[] bs) {
+        Class clz = defineClass(name, bs, 0, bs.length);
+        dynClassTypeMap.put(name, clz);
+        dynClassBytesMap.put(name, bs);
+        allDynClassTypeMap.put(name, clz);
+        allDynClassBytesMap.put(name, bs);
+        return clz;
+    }
+
     @Override
-    public Class<?> findClass(String name) throws ClassNotFoundException {
+    public Class loadClass(String name) throws ClassNotFoundException {
+        Class clazz = allDynClassTypeMap.get(name);
+        if (clazz != null) {
+            return clazz;
+        }
+        return super.loadClass(name);
+    }
+
+    @Override
+    public Class findClass(String name) throws ClassNotFoundException {
         byte[] classData = dynClassBytesMap.get(name);
         if (classData == null) {
             Class clazz = dynClassTypeMap.get(name);
@@ -508,10 +526,6 @@ public class RedkaleClassLoader extends URLClassLoader {
         return super.defineClass(name, classData, 0, classData.length);
     }
 
-    public Class loadClass(String name, byte[] b) {
-        return defineClass(name, b, 0, b.length);
-    }
-
     public void forEachCacheClass(Consumer<String> action) { // getAllURLs返回URL_NONE时需要重载此方法
         if (this.getParent() instanceof RedkaleClassLoader) {
             ((RedkaleClassLoader) getParent()).forEachCacheClass(action);
diff --git a/src/main/java/org/redkale/util/Reproduce.java b/src/main/java/org/redkale/util/Reproduce.java
index 5d1a88100..38c7d450e 100644
--- a/src/main/java/org/redkale/util/Reproduce.java
+++ b/src/main/java/org/redkale/util/Reproduce.java
@@ -72,8 +72,8 @@ public interface Reproduce<D, S> extends BiFunction<D, S, D> {
                 + "__" + destClass.getName().replace('.', '_').replace('$', '_')
                 + "__" + srcClass.getName().replace('.', '_').replace('$', '_');
         try {
-            Class clz = classLoader.findDynClass(newDynName.replace('/', '.'));
-            return (Reproduce) (clz == null ? classLoader.loadClass(newDynName.replace('/', '.')) : clz)
+            return (Reproduce) classLoader
+                    .loadClass(newDynName.replace('/', '.'))
                     .getDeclaredConstructor()
                     .newInstance();
         } catch (Throwable ex) {
@@ -232,7 +232,6 @@ public interface Reproduce<D, S> extends BiFunction<D, S, D> {
         // ------------------------------------------------------------------------------
         byte[] bytes = cw.toByteArray();
         Class<?> newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionDeclaredConstructors(newClazz, newDynName.replace('/', '.'));
         try {
             return (Reproduce) newClazz.getDeclaredConstructor().newInstance();
diff --git a/src/main/java/org/redkale/util/TypeToken.java b/src/main/java/org/redkale/util/TypeToken.java
index 4b6f16fda..7f2b7e227 100644
--- a/src/main/java/org/redkale/util/TypeToken.java
+++ b/src/main/java/org/redkale/util/TypeToken.java
@@ -716,7 +716,6 @@ public abstract class TypeToken<T> {
         cw.visitEnd();
         byte[] bytes = cw.toByteArray();
         Class<?> newClazz = classLoader.loadClass(newDynName.replace('/', '.'), bytes);
-        classLoader.putDynClass(newDynName.replace('/', '.'), bytes, newClazz);
         RedkaleClassLoader.putReflectionPublicFields(newDynName.replace('/', '.'));
         try {
             return newClazz.getField("field").getGenericType();