byte buddy - Can I invoke MethodHandle.invokeExact from ByteBuddy?

Question

MethodHandle#invokeExact(Object...) is a strange method in Java.

Suppose I wanted to invoke this from ByteBuddy (using MethodCall.invoke() and the like). Is there a way to do this without incurring a runtime exception? (Please bear in mind in any answers to this question that although it looks like it takes an ordinary Object array, MethodHandle#invokeExact(Object...) treats that argument very unusually.)

question from:https://stackoverflow.com/questions/65836765/can-i-invoke-methodhandle-invokeexact-from-bytebuddy

Answer 1

Those methods have a polymorphic signature and expect the arguments to be of the expected types, against the actual class file signature. Unfortunately, this corner case of method invocation is not supported in Byte Buddy at this day.