FrankChen021 opened a new pull request, #20386:
URL: https://github.com/apache/druid/pull/20386

   ### Description
   
   Upgrades `org.apache.maven.resolver` from 1.3.1 to 2.0.23. A plain version 
bump breaks the build because Resolver 2.0 removed the `ServiceLocator` 
bootstrap API used by `PullDependencies` (the `pull-deps` CLI tool, the only 
consumer of this dependency).
   
   #### Migrated PullDependencies off the removed ServiceLocator API
   
   Replaced the `DefaultServiceLocator`/`MavenRepositorySystemUtils` bootstrap 
with `RepositorySystemSupplier`/`SessionBuilderSupplier` (from the new 
`maven-resolver-supplier-mvn3` artifact). Using `SessionBuilderSupplier` 
matters: it restores Maven's default scope-based dependency selection, without 
which collection would eagerly walk into dependencies' own test-scope/optional 
transitive graphs.
   
   #### Updated dependency declarations
   
   Bumped all `org.apache.maven.resolver` artifacts to 2.0.23, centrally 
managed via a `maven.resolver.version` property in the root POM. Renamed 
`maven-resolver-transport-http` to `maven-resolver-transport-apache` (renamed 
upstream) and dropped `org.apache.maven:maven-resolver-provider`, superseded by 
`maven-resolver-supplier-mvn3`.
   
   #### Replaced javax.xml.bind.DatatypeConverter with java.util.HexFormat
   
   `ExportMetadata` was the only reason `services` needed 
`jakarta.xml.bind-api` directly. `java.util.HexFormat` covers the same hex 
encode/decode without the extra dependency, with output kept byte-for-byte 
identical via `HexFormat.of().withUpperCase()`.
   
   <hr>
   
   ##### Key changed/added classes in this PR
    * `PullDependencies`
    * `PullDependenciesTest`
    * `ExportMetadata`
   
   <hr>
   
   This PR has:
   
   - [x] been self-reviewed.
   - [x] added or updated version, license, or notice information in 
[licenses.yaml](https://github.com/apache/druid/blob/master/dev/license.md)
   - [x] added comments explaining the "why" and the intent of the code 
wherever would not be obvious for an unfamiliar reader.
   - [x] added unit tests or modified existing tests to cover new code paths, 
ensuring the threshold for [code 
coverage](https://github.com/apache/druid/blob/master/dev/code-review/code-coverage.md)
 is met.
   


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