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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2020/03/19 07:00:17 UTC

[GitHub] [pulsar] murong00 opened a new issue #6561: [pulsar-client] NPE while call getLastMessageId

murong00 opened a new issue #6561: [pulsar-client] NPE while call getLastMessageId
URL: https://github.com/apache/pulsar/issues/6561
 
 
   **Describe the bug**
   Meet NPE while call getLastMessageId as below:
   ```
   [root@xxx apache-pulsar-2.6.0-SNAPSHOT]# bin/pulsar-admin topics last-message-id persistent://public/default/test
   java.lang.RuntimeException: com.fasterxml.jackson.databind.JsonMappingException: (was java.lang.NullPointerException) (through reference chain: org.apache.pulsar.client.impl.BatchMessageIdImpl["acker"]->org.apache.pulsar.client.impl.BatchMessageAcker["outstandingAcks"])
           at org.apache.pulsar.admin.cli.CliCommand.print(CliCommand.java:182)
           at org.apache.pulsar.admin.cli.CmdTopics$GetLastMessageId.run(CmdTopics.java:773)
           at org.apache.pulsar.admin.cli.CmdBase.run(CmdBase.java:71)
           at org.apache.pulsar.admin.cli.PulsarAdminTool.run(PulsarAdminTool.java:221)
           at org.apache.pulsar.admin.cli.PulsarAdminTool.main(PulsarAdminTool.java:263)
   Caused by: com.fasterxml.jackson.databind.JsonMappingException: (was java.lang.NullPointerException) (through reference chain: org.apache.pulsar.client.impl.BatchMessageIdImpl["acker"]->org.apache.pulsar.client.impl.BatchMessageAcker["outstandingAcks"])
           at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:394)
           at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:353)
           at com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:316)
           at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:730)
           at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:166)
           at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:727)
           at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:722)
           at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:166)
           at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:480)
           at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:319)
           at com.fasterxml.jackson.databind.ObjectWriter$Prefetch.serialize(ObjectWriter.java:1433)
           at com.fasterxml.jackson.databind.ObjectWriter._configAndWriteValue(ObjectWriter.java:1135)
           at com.fasterxml.jackson.databind.ObjectWriter.writeValueAsString(ObjectWriter.java:1005)
           at org.apache.pulsar.admin.cli.CliCommand.print(CliCommand.java:180)
           ... 4 more
   Caused by: java.lang.NullPointerException
           at org.apache.pulsar.client.impl.BatchMessageAcker.getOutstandingAcks(BatchMessageAcker.java:69)
           at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
           at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
           at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
           at java.lang.reflect.Method.invoke(Method.java:498)
           at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:688)
           at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:722)
           ... 14 more
   ```
   The reason is that `BatchMessageIdImpl` use a default `BatchMessageAcker` with null value.
   
   **Expected behavior**
   `getLastMessageId` should be successful like below:
   ```
   [root@xxx apache-pulsar-2.6.0-SNAPSHOT]# bin/pulsar-admin topics last-message-id persistent://public/default/test
   {
     "ledgerId" : 5,
     "entryId" : 0,
     "partitionIndex" : -1,
     "batchIndex" : 9,
     "acker" : {
       "batchSize" : 0,
       "prevBatchCumulativelyAcked" : false,
       "outstandingAcks" : 0
     },
     "outstandingAcksInSameBatch" : 0,
     "batchSize" : 0
   }
   
   ```
   
   

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[GitHub] [pulsar] sijie closed issue #6561: [pulsar-client] NPE while call getLastMessageId

Posted by GitBox <gi...@apache.org>.
sijie closed issue #6561: [pulsar-client] NPE while call getLastMessageId
URL: https://github.com/apache/pulsar/issues/6561
 
 
   

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