[GitHub] [pulsar] kevenYLi opened a new pull request #5295: [Doc]to fix syntax err in the sample code: close producer async

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

kevenYLi opened a new pull request #5295: [Doc]to fix syntax err in the sample code: close producer async
URL: https://github.com/apache/pulsar/pull/5295
 
 
   ### Motivation
   
   * to fix syntax err in the sample code: 'Close operations can also be asynchronous’, the error are as below:
     - Cannot resolve method 'exceptionally(\<lambda expression>)
     - Bad return type in lambda expression: Throwable cannot be converted to Void
   
   
   ### Modifications
   
   - delete the unexpected semicolon
   - adjust return clause.
   
   ### Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (no)
     - The public API: (no)
     - The schema: (no)
     - The default values of configurations: (no)
     - The wire protocol: (no)
     - The rest endpoints: (no)
     - The admin cli options: (no)
     - Anything that affects deployment: (no)
   
   ### Documentation
   
     - Does this pull request introduce a new feature? (no)
   

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