Here’s the sole (?) remaining J8M at Chino last year (& no, its not an Me163 copy as Pete suggested).

Not an exact copy, but Japan did buy a license for production of the Messerschmitt and its engine.
And for those of you who don’t know the story, one of the two submarines taking the data back to Japan was sunk, so Japan had to figure out the rest.
So how about calling it a “Half-copy”? 🙂