<!-- For Security Vulnerabilities, please use https://pivotal.io/security#reporting --> ### Summary Spring Security's [MethodSecurityEvaluationContext](https://github.com/spring-projects/spring-security/blob/5.1.2.RELEASE/core/src/main/java/org/springframework/security/access/expression/method/MethodSecurityEvaluationContext.java#L115) should ignore parameter names that are `null`. Related: https://jira.spring.io/browse/SPR-17565