Remove the field binders.

apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/interceptor/enhance/ClassEnhancePluginDefine.java

@@ -104,9 +104,6 @@ public abstract class ClassEnhancePluginDefine extends AbstractClassEnhancePlugi
             for (ConstructorInterceptPoint constructorInterceptPoint : constructorInterceptPoints) {
                 newClassBuilder = newClassBuilder.constructor(ElementMatchers.<MethodDescription>any()).intercept(SuperMethodCall.INSTANCE
                     .andThen(MethodDelegation.withDefaultConfiguration()
-                        .withBinders(
-                            FieldProxy.Binder.install(FieldGetter.class, FieldSetter.class)
-                        )
                         .to(new ConstructorInter(constructorInterceptPoint.getConstructorInterceptor()))
                     )
                 );
@@ -129,7 +126,6 @@ public abstract class ClassEnhancePluginDefine extends AbstractClassEnhancePlugi
                             .intercept(
                                 MethodDelegation.withDefaultConfiguration()
                                     .withBinders(
-                                        FieldProxy.Binder.install(FieldGetter.class, FieldSetter.class),
                                         Morph.Binder.install(OverrideCallable.class)
                                     )
                                     .to(new InstMethodsInterWithOverrideArgs(interceptor))
@@ -139,9 +135,6 @@ public abstract class ClassEnhancePluginDefine extends AbstractClassEnhancePlugi
                         newClassBuilder.method(not(isStatic()).and(instanceMethodsInterceptPoint.getMethodsMatcher()))
                             .intercept(
                                 MethodDelegation.withDefaultConfiguration()
-                                    .withBinders(
-                                        FieldProxy.Binder.install(FieldGetter.class, FieldSetter.class)
-                                    )
                                     .to(new InstMethodsInter(interceptor))
                             );
                 }

apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/interceptor/enhance/ConstructorInter.java

@@ -37,19 +37,16 @@ public class ConstructorInter {
      * Intercept the target constructor.
      *
      * @param obj target class instance.
-     * @param dynamicFieldGetter a proxy to set the dynamic field
-     * @param dynamicFieldSetter a proxy to get the dynamic field
      * @param allArguments all constructor arguments
      */
     @RuntimeType
     public void intercept(@This Object obj,
-        @FieldProxy(ClassEnhancePluginDefine.CONTEXT_ATTR_NAME) FieldSetter dynamicFieldSetter,
-        @FieldProxy(ClassEnhancePluginDefine.CONTEXT_ATTR_NAME) FieldGetter dynamicFieldGetter,
         @AllArguments Object[] allArguments) {
         try {
             InstanceConstructorInterceptor interceptor = InterceptorInstanceLoader.load(constructorInterceptorClassName, obj.getClass().getClassLoader());
+            EnhancedInstance targetObject = (EnhancedInstance)obj;
 
-            interceptor.onConstruct(obj, allArguments, dynamicFieldSetter, dynamicFieldGetter);
+            interceptor.onConstruct(targetObject, allArguments);
         } catch (Throwable t) {
             logger.error("ConstructorInter failure.", t);
         }

apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/interceptor/enhance/EnhancedInstance.java

@@ -4,5 +4,7 @@ package org.skywalking.apm.agent.core.plugin.interceptor.enhance;
  * @author wusheng
  */
 public interface EnhancedInstance {
-    Object _getSkyWalkingDynamicFiled();
+    Object getSkyWalkingDynamicField();
+
+    void setSkyWalkingDynamicField();
 }

apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/interceptor/enhance/FieldGetter.java

-package org.skywalking.apm.agent.core.plugin.interceptor.enhance;
-
-public interface FieldGetter {
-    Object getValue();
-}

apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/interceptor/enhance/FieldSetter.java

-package org.skywalking.apm.agent.core.plugin.interceptor.enhance;
-
-public interface FieldSetter {
-    void setValue(Object value);
-}

apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/interceptor/enhance/InstMethodsInterWithOverrideArgs.java

@@ -42,8 +42,6 @@ public class InstMethodsInterWithOverrideArgs {
      * @param obj target class instance.
      * @param allArguments all method arguments
      * @param method method description.
-     * @param dynamicFieldGetter a proxy to set the dynamic field
-     * @param dynamicFieldSetter a proxy to get the dynamic field
      * @param zuper the origin call ref.
      * @return the return value of target instance method.
      * @throws Exception only throw exception because of zuper.call() or unexpected exception in sky-walking ( This is a
@@ -53,18 +51,15 @@ public class InstMethodsInterWithOverrideArgs {
     public Object intercept(@This Object obj,
         @AllArguments Object[] allArguments,
         @Origin Method method,
-        @FieldProxy(ClassEnhancePluginDefine.CONTEXT_ATTR_NAME) FieldSetter dynamicFieldSetter,
-        @FieldProxy(ClassEnhancePluginDefine.CONTEXT_ATTR_NAME) FieldGetter dynamicFieldGetter,
         @Morph(defaultMethod = true) OverrideCallable zuper
     ) throws Throwable {
         InstanceMethodsAroundInterceptor interceptor = InterceptorInstanceLoader
             .load(instanceMethodsAroundInterceptorClassName, obj.getClass().getClassLoader());
+        EnhancedInstance targetObject = (EnhancedInstance)obj;
 
         MethodInterceptResult result = new MethodInterceptResult();
         try {
-            interceptor.beforeMethod(obj, method.getName(), allArguments, method.getParameterTypes(),
-                dynamicFieldSetter,
-                dynamicFieldGetter,
+            interceptor.beforeMethod(targetObject, method.getName(), allArguments, method.getParameterTypes(),
                 result);
         } catch (Throwable t) {
             logger.error(t, "class[{}] before method[{}] intercept failure", obj.getClass(), method.getName());
@@ -79,9 +74,7 @@ public class InstMethodsInterWithOverrideArgs {
             }
         } catch (Throwable t) {
             try {
-                interceptor.handleMethodException(obj, method.getName(), allArguments, method.getParameterTypes(),
-                    dynamicFieldSetter,
-                    dynamicFieldGetter,
+                interceptor.handleMethodException(targetObject, method.getName(), allArguments, method.getParameterTypes(),
                     t);
             } catch (Throwable t2) {
                 logger.error(t2, "class[{}] handle method[{}] exception failure", obj.getClass(), method.getName());
@@ -89,9 +82,7 @@ public class InstMethodsInterWithOverrideArgs {
             throw t;
         } finally {
             try {
-                ret = interceptor.afterMethod(obj, method.getName(), allArguments, method.getParameterTypes(),
-                    dynamicFieldSetter,
-                    dynamicFieldGetter,
+                ret = interceptor.afterMethod(targetObject, method.getName(), allArguments, method.getParameterTypes(),
                     ret);
             } catch (Throwable t) {
                 logger.error(t, "class[{}] after method[{}] intercept failure", obj.getClass(), method.getName());

apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/interceptor/enhance/InstanceConstructorInterceptor.java

@@ -11,8 +11,5 @@ public interface InstanceConstructorInterceptor {
     /**
      * Called before the origin constructor invocation.
      */
-    void onConstruct(Object objInst,
-        Object[] allArguments,
-        FieldSetter dynamicFieldSetter,
-        FieldGetter dynamicFieldGetter);
+    void onConstruct(Object objInst, Object[] allArguments);
 }

apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/interceptor/enhance/InstanceMethodsAroundInterceptor.java

@@ -13,9 +13,7 @@ public interface InstanceMethodsAroundInterceptor {
      * @param result change this result, if you want to truncate the method.
      * @throws Throwable
      */
-    void beforeMethod(Object objInst, String methodName, Object[] allArguments, Class<?>[] argumentsTypes,
-        FieldSetter dynamicFieldSetter,
-        FieldGetter dynamicFieldGetter,
+    void beforeMethod(EnhancedInstance objInst, String methodName, Object[] allArguments, Class<?>[] argumentsTypes,
         MethodInterceptResult result) throws Throwable;
 
     /**
@@ -25,9 +23,7 @@ public interface InstanceMethodsAroundInterceptor {
      * @return the method's actual return value.
      * @throws Throwable
      */
-    Object afterMethod(Object objInst, String methodName, Object[] allArguments, Class<?>[] argumentsTypes,
-        FieldSetter dynamicFieldSetter,
-        FieldGetter dynamicFieldGetter,
+    Object afterMethod(EnhancedInstance objInst, String methodName, Object[] allArguments, Class<?>[] argumentsTypes,
         Object ret) throws Throwable;
 
     /**
@@ -35,8 +31,6 @@ public interface InstanceMethodsAroundInterceptor {
      *
      * @param t the exception occur.
      */
-    void handleMethodException(Object objInst, String methodName, Object[] allArguments, Class<?>[] argumentsTypes,
-        FieldSetter dynamicFieldSetter,
-        FieldGetter dynamicFieldGetter,
+    void handleMethodException(EnhancedInstance objInst, String methodName, Object[] allArguments, Class<?>[] argumentsTypes,
         Throwable t);
 }