4.x.x release notes


  • Requires Across 5.1.0

  • Changed SwitchUserGrantedAuthority usages to non-null parameter for Authentication

  • Switched to JUnit5


This release requires Across 5.0.1 and has been updated to work with Spring Security 5.

Additionally the SecurityPrincipal infrastructure has been extended to work more through a SecurityPrincipalId. This should ensure better interoperability with regular Spring security as well as avoid typical serialization problems (as authentication tokens are often serialized, eg in session storage).

Breaking changes:

  • SpringSecurityWebConfigurer and SpringSecurityWebConfigurerAdapter have been replaced by the single AcrossWebSecurityConfigurer interface

  • SecurityPrincipalService and SecurityPrincipalRetrievalStrategy now always return Optional

  • SecurityPrincipalException has been removed

Additional, possibly breaking changes:

  • addition of SecurityPrincipalId and @CurrentSecurityPrincipal and reworking of default authentication

    • the SecurityPrincipalAuthentication no longer holds the actual SecurityPrincipal internally but only the SecurityPrincipalId

    • use either CurrentSecurityPrincipalProxy.getPrincipal(Class<? extends SecurityPrincipal>) to retrieve the actual SecurityPrincipal

    • alternatively use @CurrentSecurityPrincipal instead of @AuthenticationPrincipal (the latter now only returns the SecurityPrincipalId)

  • CurrentSecurityPrincipalProxy.isAuthenticated() now returns false with an anonymous authentication

    • the AuthenticationTrustResolver is used to determine if an authentication should be considered anonymous

  • a new SecurityPrincipalReference has been provided which exposes a SecurityPrincipalId

    • it can be used to connect custom Authentication principals to a SecurityPrincipal and allow the CurrentSecurityPrincipal infrastructure to resolve the target

    • a SecurityPrincipalUserDetails implementation has been provided as well, which extends UserDetails with a unique SecurityPrincipalId

  • an AuthenticationSecurityPrincipalResolver service is available for retrieving the possible SecurityPrincipal that is represented by an Authentication

    • it supports different SecurityPrincipal representations: embedded SecurityPrincipal, SecurityPrincipalId, SecurityPrincipalReference or String which represents the SecurityPrincipalId

  • SpringSecurityInfrastructureModule (automatically added to an Across context) now extends AcrossContextInfrastructureModule instead of bootstrapping its own ApplicationContext

    • this is a minor performance improvement

    • any code directly using SpringSecurityInfrastructureModule bean factory should switch to the AcrossContextInfrastructureModule bean factory instead