嵌入式Keycloak Spring Boot应用，将Keycloak从12升级到14。

Question

嵌入式Keycloak Spring Boot应用，将Keycloak从12升级到14。

7

你好，我有一个使用嵌入式Keycloak创建的SpringBoot应用程序，参考了以下示例：https://www.baeldung.com/keycloak-embedded-in-spring-boot-app

我正在尝试将Keycloak从12升级到14，并将resteasy升级到3.15.1.Final，infinispan升级到11.0.9.Final。应用程序无法启动，日志中除了NullPointerException之外没有更多信息。我想知道是否有人尝试过相同操作并有任何建议，因为日志中没有太多信息。谢谢

2021-07-07 10:02:05 [main] INFO  org.keycloak.services - KC-SERVICES0050: Initializing master realm
2021-07-07 10:02:07 [main] DEBUG org.keycloak.keys.GeneratedRsaKeyProviderFactory - Generated keys for master
2021-07-07 10:02:07 [main] DEBUG org.keycloak.keys.GeneratedHmacKeyProviderFactory - Generated secret for master
2021-07-07 10:02:07 [main] DEBUG org.keycloak.keys.GeneratedAesKeyProviderFactory - Generated secret for master
2021-07-07 10:02:07 [main] DEBUG org.keycloak.connections.jpa.updater.liquibase.lock.LiquibaseDBLockProvider - Going to release database lock namespace=KEYCLOAK_BOOT
2021-07-07 10:02:07 [main] DEBUG org.keycloak.connections.jpa.updater.liquibase.lock.CustomLockService - Going to release database lock
2021-07-07 10:02:07 [main] DEBUG org.keycloak.models.cache.infinispan.InfinispanUserCacheProviderFactory - Registered cluster listeners
2021-07-07 10:02:07 [main] DEBUG org.keycloak.executors.DefaultExecutorsProviderFactory - We are in managed environment. Executor 'java:jboss/ee/concurrency/executor/default' was available.
2021-07-07 10:02:07 [main] DEBUG org.keycloak.executors.DefaultExecutorsProviderFactory - Found executor for 'storage-provider-threads' under JNDI name 'java:jboss/ee/concurrency/executor/storage-provider-threads'
2021-07-07 10:02:07 [main] FATAL org.keycloak.services - java.lang.NullPointerException

2021-07-07 10:02:07 [main] DEBUG org.keycloak.executors.DefaultExecutorsProviderFactory - Found executor for 'storage-provider-threads' under JNDI name 'java:jboss/ee/concurrency/executor/storage-provider-threads'
$$$$$$$$$$$$$$$$Stachtrace$$$$$$$$$$$$$ : java.lang.NullPointerException
    at java.base/java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
    at java.base/java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1006)
    at org.keycloak.executors.DefaultExecutorsProviderFactory.getExecutor(DefaultExecutorsProviderFactory.java:113)
    at org.keycloak.executors.DefaultExecutorsProviderFactory$1.getExecutor(DefaultExecutorsProviderFactory.java:68)
    at org.keycloak.utils.ServicesUtils.timeBoundOne(ServicesUtils.java:71)
    at org.keycloak.storage.AbstractStorageManager.mapEnabledStorageProvidersWithTimeout(AbstractStorageManager.java:135)
    at org.keycloak.storage.UserStorageManager.getUsersCount(UserStorageManager.java:374)
    at org.keycloak.models.cache.infinispan.UserCacheSession.getUsersCount(UserCacheSession.java:545)
    at org.keycloak.storage.user.UserQueryProvider.getUsersCount(UserQueryProvider.java:52)
    at org.keycloak.services.managers.ApplianceBootstrap.createMasterRealmUser(ApplianceBootstrap.java:99)

- Srinivas

3个回答

0

我尝试了使用Keycloak 15做同样的事情，结果也是一样的。似乎Keycloak的ConcurrentHashMapStorageProvider没有被考虑在内。

编辑：在查看Keycloak代码后，我发现MAP_STORAGE功能默认是禁用的（因为该功能被标记为实验性）。要解决此问题，您必须使用以下Java选项启动SpringBoot应用程序：

-Dkeycloak.profile.feature.map_storage=enabled

不幸的是，我现在面临另一个nullPointerException...

- Paul

0

我已经按照@mrieman建议的更改应用于最初的baeldung.com教程。目前它可以在17.0.1版本的Keycloak上正常工作。希望能对某些人有所帮助。我的Github存储库链接在这里

- Andrey Grigoriev

虽然这个链接可能回答了问题，但最好在此处包含答案的基本部分并提供参考链接。如果链接页面更改，仅有链接的答案可能会失效。-【来自审查】 - Prasanth Rajendran

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- mrieman · Accepted Answer

我们在将嵌入式Keycloak升级至15时，在Spring Boot/Servlet风格的应用程序中遇到了类似的模糊错误消息。但是，我们通过查看此教程所基于的项目代码/历史记录（baeldung.com教程）以及thomasdarimont的嵌入式Keycloak服务器在Spring Boot应用程序中运行来最终解决了这些问题。该存储库比初始教程更新了几个版本，可以升级到Keycloak 13。我们将历史记录与我们的代码进行比较，并对每个从keycloak 11到13的版本逐步应用/测试修复程序。之后，从13到15的更新更容易理解，错误也不那么难以理解。

我们的应用程序与Baeldung教程中给出的示例代码并不完全相同，但以下是我们需要升级为Keycloak 15.0.1所做的更改列表。这些更改可能与你的项目不完全一致，但希望这能够帮助某些人节省时间。

In KeycloakApplication moved the realm-setup functions from constructor method to bootstrap() method. (An example fix found here)


public class EmbeddedKeycloakApplication extends KeycloakApplication {
...

 //public EmbeddedKeycloakApplication() {
 //    createMasterRealmAdminUser();
 //    createBaeldungRealm();
 //}

 @Override
 protected ExportImportManager bootstrap() {
     final ExportImportManager exportImportManager = super.bootstrap();
     createMasterRealmAdminUser();
     createBaeldungRealm();
     return exportImportManager;
 }

In the EmbeddedKeycloakConfig we added a couple new bean references/factories (Both found here)

public class EmbeddedKeycloakConfig { ...

 @Bean("fixedThreadPool")
 public ExecutorService fixedThreadPool() {
     return Executors.newFixedThreadPool(5);
 }

 @Bean
 @ConditionalOnMissingBean(name = "springBootPlatform")
 protected SimplePlatformProvider springBootPlatform() {
     return (SimplePlatformProvider) Platform.getPlatform();
 }

In our keycloak-server.json, we removed the default 'concurrenthashmap' name from the mapStorage provider, but still provided the concurrenthashmap properties. This matches other Keycloak 15 examples. As Paul mentioned, the map_storage needs to be enabled, and the simplest solution is to use the system properties -Dkeycloak.profile.feature.map_storage=enabled -Dkeycloak.mapStorage.provider=concurrenthashmap. Similar examples can be found in the Keycloak test suites here and here . HOWEVER: We ran into errors when using these system properties, and decided it is not needed for our code. Luckilly, the 'mapStorage' is no specifically called out in the tutorial; it is only found in the Referenced Tutorial Code. So we simply matched other Keycloak 13+ examples and removed the reference in the keycloak-server.json (shown below) to get rid of the null pointer exception.
//Change this:
```
 "mapStorage": {
     "provider": "${keycloak.mapStorage.provider:concurrenthashmap}",
     "concurrenthashmap": {
         "dir": "${project.build.directory:target}"
     }
 },
```
//To This
```
 "mapStorage": {
     "provider": "${keycloak.mapStorage.provider:}",
     "concurrenthashmap": {
         "dir": "${project.build.directory:target}"
     } 
 },
```

Upgraded the proper infinispan and rest versions with keycloak version. (Tutorial code reference)

< properties>

 < keycloak.version>15.0.1</keycloak.version>

 < !-- these should be updated together with Keycloak -->
 < !-- check keycloak-dependencies-server-all effective pom -->
 < infinispan.version>11.0.9.Final</infinispan.version>
 < resteasy.version>3.15.1.Final/resteasy.version>

< /properties>

We also added the temp directory location in the SimplePlatformProvider, since this field was required. NOTE: The system temp folder, used in the example, is not recommended for production.
```
 @Override
 public File getTmpDirectory() {
     return System.getProperty("java.io.tmpdir");
 }
```

我希望这些信息对某些人有用，祝你好运！