Added default setter for authentication

[unaor]

In case that user wants to just add handlers but not to provide a custom authentication ,the auth object is not saved
this will fix it

[hazendaz]

@unaor Should spring 3 module have this same change? If so, can you add that and push it up as well?

[dblock]

This definitely needs tests and a CHANGELOG entry, please.

[unaor]

@hazendaz yes i just looked, that module required the same change
@dblock ill update the CHANGELOG , about test do you currently have a similar test that i should update with this new scenario?

[dblock]

We're missing a test for this Delegating* thing in https://github.com/dblock/waffle/tree/master/Source/JNA/waffle-spring-security3/src/test/java/waffle/spring, please add one.

[unaor]

@dblock I added a basic test that checks that the custom handler is setted correctly and another test to make sure that Authentication is not null (that was original bug).
I wanted to write test to show that the custom handler is actually being called (handler adds dummy header) but i might need some help with this as we need the mock request to be deauthorized

[dblock]

That looks better, I will leave it to @hazendaz from here.

[hazendaz]

@unaor Can we get the tests in spring3 too? Looks like you added it for only spring4. I'll merge right after. Also wondered if you were still planning on providing documentation for how you got this up and running in spring boot as well. I find that very useful info.

[hazendaz]

I'll get the tests in spring 3 shortly.