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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 to compile the spring sourcecode

When I compiled the Spring sourcecode, I got following problem. I can't get the file spring-cglib-repack-3.1.jar. what shall do? help me please. I used the Gradle to compile the source code.
zeyu xin
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Spring AOP Proxy for java.security.KeyStore

I'm wondering is there any way to make a Spring AOP Proxy for the java.security.KeyStore, there are few obstacles here: KeyStore does not have default constructor All methods of KeyStore are final I know that it is impossible to make a Spring AOP…
erkfel
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GAE + spring linkageError attempted duplicate class definition for name

I'm developing a web application with Spring 4.0.5 on GAE. I'm using spring data jpa 1.3.5 When I add @Transactional tag on a method of a @Service, at loading time I receive the following…
Michelantonio Trizio
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How to implement a delegation using cglib?

Here I required to create a instance of BImpl but BImpl requires to access functionality by an interface A. For this purpose, the class implements this interface A. How Can I wire a delegation of these interface methods of BImpl at runtime ? The…
Njax3SmmM2x2a0Zf7Hpd
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Spring, Jersey, CGLIB and Javassist

I am migrating an old project from Ant to Gradle (yes, there is still an Ant-based project in 2014). It has all sorts of nonsense thrown into its lib/ dir, and I'm very keen on dumping anything unnecessary as part of this migration. The project is…
Amir Abiri
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After upgrade, tests pass in Eclipse, fail in Maven, Spring throws BeanCreationException / NoClassDefFoundError $proxy10

After doing a Spring / Hibernate upgrade to the latest versions, I hit problems running my tests under maven. org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'protoEntityManager' defined in class path…
Adam
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must jdk, cglib and javassist proxies be final?

As far as i know classes generated by cglib are final. why? it doesn't seem to be some fundamental limitation of jvm. is it just an arbitrary decision of cglib creators? is it the case also with jdk and javassist proxies?
piotrek
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Advantages of using interfaces in Spring AOP

I read this on a guideline "When using Spring AOP always use interfaces so normal AOP proxying can be used (rather than CGLIB)" What could than mean? I have very good idea on AOP and have implemented AOP myself before. But completely out of clue.
Amit Nath
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Easymock3 Spring4.0.0.RELEASE cglib compatibility

I followed the advice given here to try some unit tests with spring aop enabled methods. However, I suspect that the repackaged cglib classes under spring-core and the cglib-nodep-2.2.jar conflict with each other, causing my class being proxied to…
mystarrocks
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ClassFormatError while creating a java proxy for multiple inheritance?

I have class 'A' that implements interface 'I'. I have two classes 'B' and 'C', each extends A and adds a new method. C and B do not override any method in A. The new method in Class 'B' has a signature different from that of 'C' and the new method…
Kannan
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How to create a Proxy that can compose methods of more than one class?

I have class A that implements interface I. I have two classes B and C, each extends A and adds a new method. The new method in Class B is different from that of C. I need to create a Proxy (sort of composite) that should have all the methods of A…
Kannan
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Spring way of Javassist

What is the Spring way of code piece which is written in Javassist. I know that Spring is using CGLib but I am sure that there are some useful good practices to follow for spring world. ProxyFactory factory = new…
Cemo
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Java/cglib ignoring method when its only calling super?

I got into a really strange problem. I have classes public class A extends ...{ } public class B extends A{ @Override @PreAuthorize(...) public String doMagic(){ String v = super.doMagic(); doSomeOtherThings(); …
zibi
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how to reuse the agent which already loaded in target jvm at runtime

I am using jdk 1.6. I attached an agent to a target jvm and sent several arguments. Is it possible to reuse the agent running in the target jvm, since my several arguments have changed? I want to program in the agent doing new job using new value of…
Nick Dong
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CGLib: cannot find override method

I have code: 1 abstract class A { 2 public abstract T getId(); 3 } 4 class B extend A { 5 public Long getId() { 6 return Long.valueOf(1); 7 } 8 } 9 public class Main { 10 public static void main(String [] args)…
Sergey Morozov
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