smongiar opened a new pull request, #22835:
URL: https://github.com/apache/camel/pull/22835
## Summary
- Add explicit `setHost("127.0.0.1")` call when launching hawtio-embedded,
instead of relying on its default `"localhost"`
- Add `--host` CLI option to `camel hawtio` command for user-configurable
binding
- Update browser URL to use the configured host instead of hardcoded
`localhost`
## Problem
On s390x and ppc64le architectures, `camel hawtio` fails with a
`ConnectException` caused by `ClosedChannelException`. The root cause is that
hawtio-embedded's default host `"localhost"` is resolved via
`InetAddress.getByName("localhost")`, which may return `::1` (IPv6 loopback) on
these systems. If IPv6 is disabled or NIO sockets behave differently, Jetty
binds to an unreachable address.
The `camel jolokia` command (JVM agent, no Jetty) works fine on the same
systems.
## Error trace (s390x)
```
java.net.ConnectException
Caused by: java.nio.channels.ClosedChannelException
at sun.nio.ch.SocketChannelImpl.ensureOpen(...)
at sun.nio.ch.SocketChannelImpl.beginConnect(...)
```
## Fix
Use explicit `127.0.0.1` (IPv4 loopback) as the default host to avoid
ambiguous `localhost` resolution across architectures.
## Test plan
- [ ] Run `camel hawtio --port=8888` on x86_64 — verify console is accessible
- [ ] Run `camel hawtio --host=0.0.0.0 --port=8888` — verify binding to all
interfaces
- [ ] Test on s390x/ppc64le (jbang-e2e pipeline)
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