Is there anyway to override a method at run time? Even if it requires dynamically creating a subclass from that instance?
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Is there anyway to override a method at run time? Even if it requires dynamically creating a subclass from that instance?
With plain Java, no.
With ByteBuddy(preferred), asm, cglib or aspectj, yes.
In plain Java, the thing to do in a situation like that is to create an interface-based proxy that handles the method invocation and delegates to the original object (or not).