Vargs bites agian

This caught me out the other day. Perhaps it shouldn't have done, but I thought it was interesting enough to write down.

The method looked like

public void myMethod(String... something);

I was trying to mock it out and was expecting it to be called with an empty argument list...

I initially tried to clever and though, "well, I know that arguments are autoboxed into an array, so I guess this will happen"

     EasyMock.expect(myObject.myMethod(EasyMock.arrEq(String[]{})));

hmmmm... no joy.... it went pop at runtime...

turns out that vargs is even more surprising that I first thought....

the expectation I was looking for was

     EasyMock.expect(myObject.myMethod());

simple when you've seen it!