UnZHGPPT opened a new issue, #10009: URL: https://github.com/apache/rocketmq/issues/10009
### 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 OS name: "linux", version: "5.15.0-138-generic", arch: "amd64", family: "unix" ### RocketMQ version rocketmq-all-5.4.0 ### JDK Version Apache Maven 3.9.1 Java version: 1.8.0_452, vendor: Private Build, runtime: /usr/lib/jvm/java-8-openjdk-amd64/jre ### Describe the Bug A NullPointerException occurs in ScheduleMessageService$HandlePutResultTask.run() at line 562 because the code assumes that ScheduleMessageService.this.deliverPendingTable.get(level) always returns a non-null LinkedBlockingQueue. However, if no queue has been initialized for the given level, get() returns null, and subsequent operations on this null reference trigger an NPE. ### Steps to Reproduce Test Code: ```java package org.apache.rocketmq.broker.schedule; import org.apache.rocketmq.store.config.MessageStoreConfig; import org.apache.rocketmq.auth.config.AuthConfig; import org.apache.rocketmq.remoting.netty.NettyClientConfig; import org.apache.rocketmq.broker.schedule.ScheduleMessageService; import org.apache.rocketmq.broker.BrokerController; import org.junit.Test; import org.apache.rocketmq.remoting.netty.NettyServerConfig; import org.apache.rocketmq.common.BrokerConfig; public class TestClass { @Test(timeout=3000) public void test() throws Throwable { BrokerConfig brokerConfig0 = new BrokerConfig(); NettyServerConfig nettyServerConfig0 = new NettyServerConfig(); NettyClientConfig nettyClientConfig0 = new NettyClientConfig(); MessageStoreConfig messageStoreConfig0 = new MessageStoreConfig(); BrokerController brokerController0 = new BrokerController(brokerConfig0, nettyServerConfig0, nettyClientConfig0, messageStoreConfig0, (AuthConfig) null); ScheduleMessageService scheduleMessageService0 = new ScheduleMessageService(brokerController0); // Removed direct access to private field deliverPendingTable ScheduleMessageService.HandlePutResultTask scheduleMessageService_HandlePutResultTask0 = scheduleMessageService0.new HandlePutResultTask(3703); scheduleMessageService_HandlePutResultTask0.run(); } } ``` Execution Result: ``` JUnit version 4.13.2 .E Time: 0.856 There was 1 failure: 1) test(org.apache.rocketmq.broker.schedule.TestClass) java.lang.NullPointerException at org.apache.rocketmq.broker.schedule.ScheduleMessageService$HandlePutResultTask.run(ScheduleMessageService.java:562) at org.apache.rocketmq.broker.schedule.TestClass.test(TestClass.java:22) FAILURES!!! Tests run: 1, Failures: 1 ``` ### What Did You Expect to See? The HandlePutResultTask.run() method should handle the case where no pending queue exists for the given level—either by skipping processing or lazily initializing an empty queue—without throwing an exception. ### What Did You See Instead? A NullPointerException is thrown: ``` java.lang.NullPointerException at org.apache.rocketmq.broker.schedule.ScheduleMessageService$HandlePutResultTask.run(ScheduleMessageService.java:562) at org.apache.rocketmq.broker.schedule.TestClass.test(TestClass.java:22) ``` ### Additional Context _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
