jianyun8023 opened a new pull request, #22329:
URL: https://github.com/apache/pulsar/pull/22329
Main Issue: #20282
### Motivation
I'm presently working with Spring Boot 3 and JDK 17. While utilizing Pulsar,
I encountered an error indicating that reflection on content under the 'sun'
package is restricted. After reviewing Pulsar-related issues, I found a
suggestion to resolve this by using `--add-opens
java.base/sun.net=ALL-UNNAMED`. However, this workaround isn't suitable and
doesn't effectively address the issue. Hence, I've created this PR.
### Modifications
The environment variables `networkaddress.cache.ttl` and
`networkaddress.cache.negative.ttl` are standard configurations for obtaining
related settings for security purposes.
I've made modifications to the
`org.apache.pulsar.common.util.netty.DnsResolverUtil` method, eliminating its
dependency on the sun.net.InetAddressCachePolicy class for obtaining DNS TTL.
The sun.net.InetAddressCachePolicy class is currently removal.
### Verifying this change
- [ ] Make sure that the change passes the CI checks.
This change added tests and can be verified as follows:
- *Added customized ttl tests*
### Does this pull request potentially affect one of the following parts:
<!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
*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
later -->
- [ ] `doc-not-needed` <!-- Your PR changes do not impact docs -->
- [X] `doc-complete` <!-- Docs have been already added -->
### Matching PR in forked repository
PR in forked repository: <!-- ENTER URL HERE -->
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