aymkhalil opened a new pull request, #20064:
URL: https://github.com/apache/pulsar/pull/20064
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<!-- Either this PR fixes an issue, -->
Fixes #20061
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### Motivation
Loads custom factories in pulsar shell only once because multiple loads are
redundant, and the lifecycle of classes in the NAR class loader (child) and the
App Class Loader (parent) could be out of sync if the custom command has a
dependency that is available on the parent loader. In this case, the
"dependent" class will be recycled between the shell commands, but not the
"dependency" class which could lead to leaking static resources.
### Modifications
Made the logic to load the custom command factory singleton
### Verifying this change
- [X] Make sure that the change passes the CI checks.
*(Please pick either of the following options)*
This change added tests and can be verified as follows:
- Added `customCommandsFactorySingleton` unit test to verify singleton
property
- [manual] Did manual testing locally with a scenario that has a
dependency on the parent class loader
### Does this pull request potentially affect one of the following parts:
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*If the box was checked, please highlight the changes*
- [ ] Dependencies (add or upgrade a dependency)
- [ ] The public API
- [ ] The schema
- [ ] The default values of configurations
- [ ] The threading model
- [ ] The binary protocol
- [ ] The REST endpoints
- [ ] The admin CLI options
- [ ] The metrics
- [ ] Anything that affects deployment
### Documentation
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- [ ] `doc` <!-- Your PR contains doc changes. -->
- [ ] `doc-required` <!-- Your PR changes impact docs and you will update
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- [X] `doc-not-needed` <!-- Your PR changes do not impact docs -->
- [ ] `doc-complete` <!-- Docs have been already added -->
### Matching PR in forked repository
PR in forked repository: https://github.com/aymkhalil/pulsar/pull/6
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