config/src/main/java/org/springframework/security/config/annotation/web/builders/WebSecurity.java
public WebInvocationPrivilegeEvaluator getPrivilegeEvaluator() {
		if (privilegeEvaluator != null) {
			return privilegeEvaluator;
		}
		return filterSecurityInterceptor == null ? null
				: new DefaultWebInvocationPrivilegeEvaluator(filterSecurityInterceptor);
	}
public WebInvocationPrivilegeEvaluator getPrivilegeEvaluator() {
		if (privilegeEvaluator != null) {
			return privilegeEvaluator;
		}
		return filterSecurityInterceptor == null ? null
				: new DefaultWebInvocationPrivilegeEvaluator(filterSecurityInterceptor);
	}
Gets the {@link WebInvocationPrivilegeEvaluator} to be used.
@return the {@link WebInvocationPrivilegeEvaluator} for further customizations