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Questions tagged [cglib]

CGLib (Code Generation Library) is a run time code generation library for the Java platform licensed under the Apache 2.0 license.

CGLib (Code Generation Library) is mainly used the generation of class proxies. This is achieved by creating subclasses at run time where method invocations are intercepted by user defined methods. Additionally, cglib offers different extension such as for example bean utilities. cglib is built on top of ASM.

Alternative code generation libraries for the JVM that are still under active development are:

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How can I capture the HTTP request and response using Instrumentation's Java API?

I am writing a -javaagent to capture the HTTP request and response using Java's Instrumentation API such as javassist/ asm. I could insert the code around the method but how can I capture if the method is about to make a HTTP call and capture the…
Vishrant
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Spring CGLIB, transactions and private final field initialization

I have the following class hierarchy in my Spring Boot application: public abstract class A { private final ObjectMapper objectMapper = new ObjectMapper(); public void method1(Object object) { …
alexanoid
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Nulls using @Configuration and @Bean with spring boot and kotlin

I'm using Spring boot 2.3.1 and Kotlin 1.3.72. I've updated it several days ago. Since that moment I've had problem with dependency injection. I don't use @Service, @Component etc. annotations, I rather prefer creating beans by @Configuration class,…
Bambelal
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Error when using @RequestScope to create Final Class Bean

Using @RequestScope to create String Bean will cause error. But using @Scope("request") will not. Isn't @RequestScope a shortcut for @Scope("request")? Below is the code snippet. @SpringBootApplication public class Application { public static…
Michael Ouyang
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Javassist factory - setting a custom classloader

With CGLIB I can do final var enhancer = new Enhancer(); enhancer.setUseCache(false); enhancer.setSuperclass(superClazz); enhancer.setCallback(...); enhancer.setClassLoader(getClass().getClassLoader()); // This However with Javassist I can't find…
LppEdd
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Nested Proxy using cglib in spring

Preface: I want to create a proxy of an existed proxy (Using cglib package in spring) , like when I call the original method class both methods of both proxies called first. Does it make any sense at all? or is it possible? Problem: When I'm…
Mehrdad HosseinNejad Yami
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Java dynamic method creation

I have following information in JSON format. [ { "name": "A", "value": { "isValueApplicable": "true" } }, { "name": "B", "parameters": [ { "name": "x", "isMandatory": "true" }, { …
SuhasD
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Ear Deployment is failing with null module after upgrading to Hibernate 5.3 from 5.2, i am using wweblogic 12c 12.1.3

I am migrating hibernate to 5.3.12.Final from 5.2.18.Finl after doing so when I try to deploy my ear to weblogic 12.1.3 it throws following error: weblogic.application.ModuleException: null null at …
GIIRRII
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cglib jars always give errors with different versions when start Tomcat 9.0.13

I deployed a web application to the Tomcat 9.0.13 server, under the WEB-INF/lib there are Hibernate related jar files. When I start the server, it give me errors in many Hibernate mapping classes: 1991 [main] ERROR proxy.BasicLazyInitializer -…
Gary
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why child class enhanced by spring cglib could not extend the parent protected property?

There is an abstract class with a protected property, public abstract class Base { protected long time = System.currentTimeMillis(); } and there are two class extends Base @Component public class A extends Base { } @Repository public class B…
zhuguowei
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ClassCast Exception when trying to type cast a dynamic spring proxy to an interface

I’ve an interface BaseDao and other entity specific Dao interfaces which extend BaseDao. public interface BaseDao { // some methods } public interface FooDao extends BaseDao { // some…
victini
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A simple question, on dynamic Java, is it do-able? or totally not possible?

A simple question, regarding dynamic java, is it do-able, or totally not possible //you have an instance of classA and it has a method doIT(), for example, ClassA obj = new ClassA(); //you call method doIT() of ClassA obj.doIt(); Now I have to…
SebastianX
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Java class hierarchy refactoring without changing the invoking code, is it possible?

Current situation: in a Java system, we have a class named Passenger as below, let's say, public Class Passenger{ //lots of member fields private String firstName ; private String lastName ; private WhatEverAttribute att; //lots of getters &…
SebastianX
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hibernate error when deploying application in wildfly

I have an ear that works perfectly in Jbos7.1 server but in wildfly ther is an error when i deploy it: [0m[31m14:33:12,077 ERROR [com.rcibanque.framework.persistance.hibernate.HibernateUtil] (ServerService Thread Pool -- 119) Initial…
abdelmouheimen
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Could not find or load main class org.logicalcobwebs.cglib.transform.hook

Error Message When I am trying to debug my code in eclipse this error appears. Any help would be appreciated.
Giorgi Gachechiladze
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