How can I double-enhance a class with cglib?
- by artemb
Hi there!
Here's the code:
Patient patient = factory.createPatient();
Enhancer enhancer = new Enhancer();
enhancer.setSuperclass(patient.getClass());
enhancer.setCallback(new DefaultMethodInterceptor(patient));
patient = (Patient) enhancer.create();
assertThat(patient.getFirstName()).isNotNull();
Enhancer enhancer2 = new Enhancer();
enhancer2.setSuperclass(patient.getClass());
enhancer2.setCallback(new DefaultMethodInterceptor(patient));
patient = (Patient) enhancer2.create();
assertThat(patient.getFirstName()).isNotNull();
It fails on the last assert with
net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
...
Caused by: java.lang.reflect.InvocationTargetException
...
Caused by: java.lang.ClassFormatError: Duplicate method name&signature in class file my/package/entity/Patient$$EnhancerByCGLIB$$ca1e6685$$EnhancerByCGLIB$$f52743be
I ask this because I want to enhance Hibernate's entities, but sometimes it returns already enhanced ones by itself and my second enhancement fails. How can I avoid this?
