NPE in AntiEntropyService.getNeighbors --------------------------------------
Key: CASSANDRA-1028 URL: https://issues.apache.org/jira/browse/CASSANDRA-1028 Project: Cassandra Issue Type: Bug Components: Core Reporter: Jonathan Ellis Assignee: Stu Hood Fix For: 0.7 Sometimes, but not always, I see this during a test run: [junit] Testsuite: org.apache.cassandra.service.AntiEntropyServiceTest [junit] Tests run: 10, Failures: 0, Errors: 0, Time elapsed: 3.189 sec [junit] [junit] ------------- Standard Error ----------------- [junit] ERROR 10:19:09,743 Error in executor futuretask [junit] java.util.concurrent.ExecutionException: java.lang.NullPointerException [junit] at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222) [junit] at java.util.concurrent.FutureTask.get(FutureTask.java:83) [junit] at org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:87) [junit] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:888) [junit] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [junit] at java.lang.Thread.run(Thread.java:637) [junit] Caused by: java.lang.NullPointerException [junit] at java.util.AbstractCollection.addAll(AbstractCollection.java:303) [junit] at org.apache.cassandra.service.AntiEntropyService.getNeighbors(AntiEntropyService.java:151) [junit] at org.apache.cassandra.service.AntiEntropyService.rendezvous(AntiEntropyService.java:176) [junit] at org.apache.cassandra.service.AntiEntropyService.access$100(AntiEntropyService.java:86) [junit] at org.apache.cassandra.service.AntiEntropyService$Validator.call(AntiEntropyService.java:487) [junit] at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [junit] at java.util.concurrent.FutureTask.run(FutureTask.java:138) [junit] at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [junit] ... 2 more [junit] ------------- ---------------- --------------- Ideally it would be nice if this could cause an actual test failure when it happens. Not sure how feasible that is. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.