[GitHub] Michael-YuSha commented on issue #3211: pulsar producer create fail, get error :Received error from server: java.lang.NullPointerException

[GitBox <gi...@apache.org>]

Michael-YuSha commented on issue #3211: pulsar producer create fail, get error :Received error from server: java.lang.NullPointerException
URL: https://github.com/apache/pulsar/issues/3211#issuecomment-448451149
 
 
   I have create a producer with JSON schema of Person object for topic named /xh/test/demo8, in the code review, we need to update Person to Student, the Student  extends Person, so i delete the schema for persistent://xh/test/demo8, then i create the producer by pulsarClient, but the server response the error Received error from server: java.lang.NullPointerException. Then, i delete the topic persistent://xh/test/demo8,  and create producer ,i get a same error from server, so that, I use pulsar-admin to upload a new schema by conf file, the server response a 500 bad code for me 

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