[GitHub] [pulsar] srkukarni opened a new pull request #3865: Classloader choice for validating Source/Sink

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srkukarni opened a new pull request #3865: Classloader choice for validating Source/Sink
URL: https://github.com/apache/pulsar/pull/3865
 
 
   
   ### Motivation
   Sources and Sinks can be either nars or jars. When we do validation, we need to load these jars/nars to check for input types, etc. We really have no way of knowing whether which classloader we need to use. The current logic of using a regular class loader if classname is specified is not the right one. 
   This pr tries both the regular and nar classloaders before settling in on one.
   ### Modifications
   
   *Describe the modifications you've done.*
   
   ### Verifying this change
   
   - [ ] Make sure that the change passes the CI checks.
   
   *(Please pick either of the following options)*
   
   This change is a trivial rework / code cleanup without any test coverage.
   
   *(or)*
   
   This change is already covered by existing tests, such as *(please describe tests)*.
   
   *(or)*
   
   This change added tests and can be verified as follows:
   
   *(example:)*
     - *Added integration tests for end-to-end deployment with large payloads (10MB)*
     - *Extended integration test for recovery after broker failure*
   
   ### Does this pull request potentially affect one of the following parts:
   
   *If `yes` was chosen, please highlight the changes*
   
     - Dependencies (does it add or upgrade a dependency): (yes / no)
     - The public API: (yes / no)
     - The schema: (yes / no / don't know)
     - The default values of configurations: (yes / no)
     - The wire protocol: (yes / no)
     - The rest endpoints: (yes / no)
     - The admin cli options: (yes / no)
     - Anything that affects deployment: (yes / no / don't know)
   
   ### Documentation
   
     - Does this pull request introduce a new feature? (yes / no)
     - If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)
     - If a feature is not applicable for documentation, explain why?
     - If a feature is not documented yet in this PR, please create a followup issue for adding the documentation
   

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