SpringSource/spring-security — pull request #19 by matsev (2012-12-17 21:36:03+00:00)
Title: SEC-2083: Created a class that allows filtering of immutable collections...

This is a suggestion on how the suggestion in https://jira.springsource.org/browse/SEC-2083 can be implemented. I was hesitating whether or not to extend the DefaultMethodSecurityExpressionHandler for this use case, or refactor it to form an AbstractMethodSecurityExpressionHandler that could be extended. Personally, I prefer the latter, but with the provided solution no existing code is changed.