NPE

oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/web/server/WebSessionServerOAuth2AuthorizedClientRepository.java

@@ -95,9 +95,7 @@ public Mono<Void> removeAuthorizedClient(String clientRegistrationId, Authentica
 	}
 
 	private Map<String, OAuth2AuthorizedClient> getAuthorizedClients(WebSession session) {
-	    if (session == null) {
-	        return new HashMap<>();
-	    }
+		Assert.notNull(session, "WebSession cannot be null. Ensure the session is properly initialized before accessing authorized clients.");
 	    Map<String, OAuth2AuthorizedClient> authorizedClients = session.getAttribute(this.sessionAttributeName);
 	    return authorizedClients != null ? authorizedClients : new HashMap<>();
 	}