hutiefang76 opened a new issue, #4413:
URL: https://github.com/apache/amoro/issues/4413
### What happened?
A reachable bracketed IPv6 endpoint fails before connection validation
because splitting on colons loses its host and port. CommonUtil.telnetOrPing
throws IllegalArgumentException; the existing KafkaClusterSimpleInfo.validate
bean uses that helper and also fails.
Expected: reachable bracketed IPv6 endpoints pass, while IPv4, optional
chroot, fallback and malformed-port rejection remain supported.
### Affects Versions
master at 061eb724e93592fe87cf44b61af34c1d799f5db6
### What table formats are you seeing the problem on?
_No response_
### What engines are you seeing the problem on?
_No response_
### How to reproduce
1. Open a loopback ServerSocket on ::1 with an ephemeral port p.
2. Call CommonUtil.telnetOrPing("[::1]:" + p). The current split attempts to
parse an empty token as the port and throws before connecting.
3. Set the same endpoint as brokerList on KafkaClusterSimpleInfo and call
validate; it also fails.
4. Repeat with /service appended to the endpoint to exercise the optional
chroot.
### Relevant log output
```shell
```
### Anything else
Tests exercise real IPv4/IPv6 ServerSockets and the production helper/bean.
Four of six initial cases fail on the base. Seven final cases pass, including
the review-discovered empty-port regression; all 15 reactor modules compile and
Spotless/Checkstyle pass. No deployed Kafka registration flow was exercised. A
tested fix is ready in hutiefang76/amoro branch
fix/kafka-ipv6-address-validation.
### Are you willing to submit a PR?
- [x] Yes I am willing to submit a PR!
### Code of Conduct
- [x] I agree to follow this project's Code of Conduct
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