PrometheusMetricReaderProviderTest createMetricReader_Default failing on RHEL 9.4

[eamonn-kearns-ibm]

Describe the bug
Build is failing because of test createMetricReader_Default

Steps to reproduce
./gradlew build

What did you expect to see?
I expect the test to pass

What did you see instead?

PrometheusMetricReaderProviderTest > createMetricReader_Default() FAILED
    org.assertj.core.error.AssertJMultipleFailuresError: 
    [Extracted: httpServer] (1 failure)
    -- failure 1 --
    expected: "0:0:0:0:0:0:0:0"
     but was: "0.0.0.0"
    at PrometheusMetricReaderProviderTest.lambda$createMetricReader_Default$0(PrometheusMetricReaderProviderTest.java:62)
        at app//io.opentelemetry.exporter.prometheus.internal.PrometheusMetricReaderProviderTest.createMetricReader_Default(PrometheusMetricReaderProviderTest.java:60)

129 tests completed, 1 failed, 3 skipped

It appears that the IPv4 is being returned by server.getAddress().getHostName() and not an ipv6 one.

Task :exporters:prometheus:test FAILED

What version and what artifacts are you using?
Artifacts: opentelemetry-java
Version: 1.59.0 (2026-02-06)
How did you reference these artifacts?
I cloned the repository and attempted to build

Environment
Compiler: openjdk version "21.0.10" 2026-01-20 LTS
OS: Red Hat Enterprise 9.4
Runtime (if different from JDK above): OpenJDK Runtime Environment (Red_Hat-21.0.10.0.7-1) (build 21.0.10+7-LTS)

Additional context

I think adding 0.0.0.0 to a list of accepted ip addressed by server.getAddres().getHostName() will fix this.

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