diff --git a/adapters/oidc/spring-boot/src/main/java/org/keycloak/adapters/springboot/KeycloakSpringBootConfiguration.java b/adapters/oidc/spring-boot/src/main/java/org/keycloak/adapters/springboot/KeycloakSpringBootConfiguration.java
index dc2573d..0c1bb00 100755
--- a/adapters/oidc/spring-boot/src/main/java/org/keycloak/adapters/springboot/KeycloakSpringBootConfiguration.java
+++ b/adapters/oidc/spring-boot/src/main/java/org/keycloak/adapters/springboot/KeycloakSpringBootConfiguration.java
@@ -209,7 +209,7 @@ public class KeycloakSpringBootConfiguration {
}
}
- WebAppContext webAppContext = server.getBean(WebAppContext.class);
+ WebAppContext webAppContext = (WebAppContext) server.getHandler();
ConstraintSecurityHandler securityHandler = new ConstraintSecurityHandler();
securityHandler.setConstraintMappings(jettyConstraintMappings);