OAuth2 Resource Server docs not in sync - authorityPrefix can't be set to ""

[judomu]

In spring-security documentation (https://docs.spring.io/spring-security/site/docs/current/reference/html5/):

Or, you can remove the prefix altogether by calling JwtGrantedAuthoritiesConverter#setAuthorityPrefix("").

But that will not work

	public void setAuthorityPrefix(String authorityPrefix) {
		Assert.hasText(authorityPrefix, "authorityPrefix cannot be empty");
		this.authorityPrefix = authorityPrefix;
	}

So the documentation is wrong or the implementation, imho the option to set authorityPrefix to "" makes sense to me.

[rwinch]

Thanks for the report. I think it is the implementation that is broken. Would you like to submit a PR to fix it?

[judomu]

Sure, I will provide the fix

[rwinch]

Thanks @judomu! The issue is yours

[rwinch]

This is now merged into master and 5.2.x