zhtttylz opened a new pull request, #7960:
URL: https://github.com/apache/hadoop/pull/7960
### Description of PR
HDFS-17830. Fix failing TestZKDelegationTokenSecretManagerImpl due to static
Curator reuse.
TestZKDelegationTokenSecretManagerImpl tests fail with “Expected state
[STARTED] was [STOPPED]” due to static Curator reuse
```
IllegalStateException: Expected state [STARTED] was [STOPPED]
at CuratorFrameworkImpl.checkState / usingNamespace
at ZKDelegationTokenSecretManager.<init>(...)
```
CI evidence:
[https://ci-hadoop.apache.org/job/hadoop-qbt-trunk-java8-linux-x86_64/2051/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs-rbf.txt](https://ci-hadoop.apache.org/job/hadoop-qbt-trunk-java8-linux-x86_64/2051/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs-rbf.txt)
Under JUnit 5’s PER_METHOD lifecycle, static fields persist; this suite
shares a static CuratorFramework that some tests close without resetting, so
later tests reuse a STOPPED client and fail in
ZKDelegationTokenSecretManagerImpl (“Expected [STARTED] was [STOPPED]”). It’s
an isolation/cleanup issue, not a Curator change—reset or recreate the static
client between tests (in @AfterEach).
### How was this patch tested?
CI Test.
### For code changes:
- [ ] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
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