[I] [Bug] start faild when acl2.0 authentication enabled [rocketmq]

[via GitHub]

kingkh1995 opened a new issue, #8613:
URL: https://github.com/apache/rocketmq/issues/8613

   ### Before Creating the Bug Report
   
   - [X] I found a bug, not just asking a question, which should be created in 
[GitHub Discussions](https://github.com/apache/rocketmq/discussions).
   
   - [X] I have searched the [GitHub 
Issues](https://github.com/apache/rocketmq/issues) and [GitHub 
Discussions](https://github.com/apache/rocketmq/discussions)  of this 
repository and believe that this is not a duplicate.
   
   - [X] I have confirmed that this bug belongs to the current repository, not 
other repositories of RocketMQ.
   
   
   ### Runtime platform environment
   
   windows11
   
   ### RocketMQ version
   
   develop
   
   ### JDK Version
   
   jdk8
   
   ### Describe the Bug
   
   AuthorizationFactory
   
   public static AuthorizationStrategy getStrategy(AuthConfig config, 
Supplier<?> metadataService) {
           try {
               Class<? extends AuthorizationStrategy> clazz = 
StatelessAuthorizationStrategy.class;
               if (StringUtils.isNotBlank(config.getAuthenticationStrategy())) 
{ // wrong
                   clazz = (Class<? extends AuthorizationStrategy>) 
Class.forName(config.getAuthorizationStrategy());
               }
               return clazz.getDeclaredConstructor(AuthConfig.class, 
Supplier.class).newInstance(config, metadataService);
           } catch (Exception e) {
               throw new RuntimeException(e);
           }
       }
   
   ### Steps to Reproduce
   
   broker.conf
   
   brokerClusterName = DefaultCluster
   brokerName = broker-a
   brokerId = 0
   deleteWhen = 04
   fileReservedTime = 48
   brokerRole = ASYNC_MASTER
   flushDiskType = ASYNC_FLUSH
   
   authenticationEnabled = true
   authenticationProvider = 
org.apache.rocketmq.auth.authentication.provider.DefaultAuthenticationProvider
   initAuthenticationUser = {"username":"rocketmq","password":"12345678"}
   innerClientAuthenticationCredentials = 
{"accessKey":"rocketmq","secretKey":"12345678"}
   authenticationMetadataProvider = 
org.apache.rocketmq.auth.authentication.provider.LocalAuthenticationMetadataProvider
   authenticationStrategy = 
org.apache.rocketmq.auth.authentication.strategy.StatefulAuthenticationStrategy
   
   ### What Did You Expect to See?
   
   start success
   
   ### What Did You See Instead?
   
   java.lang.RuntimeException: java.lang.RuntimeException: 
java.lang.NullPointerException
        at 
org.apache.rocketmq.broker.BrokerController.initialRequestPipeline(BrokerController.java:1064)
        at 
org.apache.rocketmq.broker.BrokerController.recoverAndInitService(BrokerController.java:882)
        at 
org.apache.rocketmq.broker.BrokerController.initialize(BrokerController.java:834)
        at 
org.apache.rocketmq.broker.BrokerStartup.createBrokerController(BrokerStartup.java:248)
        at 
org.apache.rocketmq.proxy.ProxyStartup.createBrokerController(ProxyStartup.java:230)
        at 
org.apache.rocketmq.proxy.ProxyStartup.createMessagingProcessor(ProxyStartup.java:188)
        at org.apache.rocketmq.proxy.ProxyStartup.main(ProxyStartup.java:79)
   Caused by: java.lang.RuntimeException: java.lang.NullPointerException
        at 
org.apache.rocketmq.auth.authorization.factory.AuthorizationFactory.getStrategy(AuthorizationFactory.java:113)
        at 
org.apache.rocketmq.auth.authorization.AuthorizationEvaluator.<init>(AuthorizationEvaluator.java:36)
        at 
org.apache.rocketmq.auth.authorization.AuthorizationEvaluator.<init>(AuthorizationEvaluator.java:32)
        at 
org.apache.rocketmq.auth.authorization.factory.AuthorizationFactory.lambda$getEvaluator$2(AuthorizationFactory.java:97)
        at 
org.apache.rocketmq.auth.authorization.factory.AuthorizationFactory.computeIfAbsent(AuthorizationFactory.java:147)
        at 
org.apache.rocketmq.auth.authorization.factory.AuthorizationFactory.getEvaluator(AuthorizationFactory.java:97)
        at 
org.apache.rocketmq.broker.auth.pipeline.AuthorizationPipeline.<init>(AuthorizationPipeline.java:43)
        at 
org.apache.rocketmq.broker.BrokerController.initialRequestPipeline(BrokerController.java:1060)
        ... 6 more
   Caused by: java.lang.NullPointerException
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:264)
        at 
org.apache.rocketmq.auth.authorization.factory.AuthorizationFactory.getStrategy(AuthorizationFactory.java:109)
        ... 13 more
   
   ### Additional Context
   
   _No response_


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