I tried the Spring Security SAML sample application with Spring 4 and it doesn't work, but I have not investigated any further. Is the main module (Spring Security SAML, v1.0.1) expected to work in a Spring 4 environment?
Spring Security SAML 1.0.1 final can be used with Spring Security 4 - Spring Doc : Spring Doc Refer Section 2.1 New features, improvements and fixes in 1.0.1.FINAL