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I have a class called A and I need to create a new object of that class without calling its constructor. I want to set all its attributes through reflection.
Can I redefine the constructor of class A using reflection?
Or is there any way other way to do this?
In the Sun/Oracle JVm you can use
Unsafe.allocateInstance(Class). Otherwise you have to generate byte code to create the instance without calling a constructor. You could use ASM for this. You cannot create an instance without a constructor using Reflection alone.BTW: You can define a new method using byte code manipulation, but to add a constructor, you have to change the class before it is loaded. (This is tricky to do)