diff --git a/generator/src/main/java/com/reajason/javaweb/probe/generator/response/ResponseBodyGenerator.java b/generator/src/main/java/com/reajason/javaweb/probe/generator/response/ResponseBodyGenerator.java
index 9ac210a8..1a33a107 100644
--- a/generator/src/main/java/com/reajason/javaweb/probe/generator/response/ResponseBodyGenerator.java
+++ b/generator/src/main/java/com/reajason/javaweb/probe/generator/response/ResponseBodyGenerator.java
@@ -18,7 +18,6 @@ import net.bytebuddy.asm.Advice;
 import net.bytebuddy.dynamic.DynamicType;
 import net.bytebuddy.implementation.FixedValue;
 import org.apache.commons.lang3.StringUtils;
-import org.eclipse.jetty.server.Request;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -139,7 +138,8 @@ public class ResponseBodyGenerator extends ByteBuddyShellGenerator<ResponseBodyC
                 }
                 ret = p;
             } catch (Exception e) {
-                Object parameters = Request.class.getMethod("extractQueryParameters", Request.class, Charset.class).invoke(null, request, UTF_8);
+                Class<?> requestClass = request.getClass().getClassLoader().loadClass("org.eclipse.jetty.server.Request");
+                Object parameters = requestClass.getMethod("extractQueryParameters", requestClass, Charset.class).invoke(null, request, UTF_8);
                 String p = (String) ShellCommonUtil.invokeMethod(parameters, "getValue", new Class[]{String.class}, new Object[]{name});
                 if (p == null || p.isEmpty()) {
                     Object headers = ShellCommonUtil.invokeMethod(request, "getHeaders", null, null);
diff --git a/generator/src/main/java/com/reajason/javaweb/probe/payload/response/JettyWriter.java b/generator/src/main/java/com/reajason/javaweb/probe/payload/response/JettyWriter.java
index a569507d..f199c40b 100644
--- a/generator/src/main/java/com/reajason/javaweb/probe/payload/response/JettyWriter.java
+++ b/generator/src/main/java/com/reajason/javaweb/probe/payload/response/JettyWriter.java
@@ -1,7 +1,5 @@
 package com.reajason.javaweb.probe.payload.response;
 
-import org.eclipse.jetty.util.Callback;
-
 import java.io.ByteArrayOutputStream;
 import java.io.OutputStream;
 import java.io.PrintStream;
@@ -72,7 +70,8 @@ public class JettyWriter {
                                 } catch (Exception x) {
                                     invokeMethod(response, "setStatus", new Class[]{int.class}, new Object[]{200});
                                     ByteBuffer content = UTF_8.encode(result);
-                                    invokeMethod(response, "write", new Class[]{boolean.class, ByteBuffer.class, Callback.class}, new Object[]{true, content, null});
+                                    Class<?> callBackClass = request.getClass().getClassLoader().loadClass("org.eclipse.jetty.util.Callback");
+                                    invokeMethod(response, "write", new Class[]{boolean.class, ByteBuffer.class, callBackClass}, new Object[]{true, content, null});
                                 }
                             }
                         }