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Bret McGuire commented on CASSANDRA-19504:
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Current Jenkinsfile includes a 3x3 matrix (C* 3.11 and 4.0 + DSE 6.8 X Java 8,
11 and 17) for running unit and integration tests. We're seeing tests that
should be run against Java8 using Java17, tests which should be using Java11
using Java8 and so on. Results vary wildly; there's no consistency as to which
JVM is used for a given C*/Java pair.
Belief is that the underlying cause here are changes that came in with [this
PR|https://github.com/apache/cassandra-java-driver/pull/1663]. These changes
introduced a few additional args to the "mvn verify" invocation; these args are
passed through env vars computed by the Jenkinsfile itself. Best guess is that
this mechanism for state management gets confused when invoking the 3x3 matrix
which leads to random JVM selection for a given run. As mentioned by
[~janesiyaohe] we should be able to address this via better state management.
> Jenkinsfile doesn't invoke tests with the correct Java versions
> ---------------------------------------------------------------
>
> Key: CASSANDRA-19504
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19504
> Project: Cassandra
> Issue Type: Bug
> Components: Client/java-driver
> Reporter: Jane He
> Assignee: Jane He
> Priority: Normal
>
> The existing Jenkinsfile is intended to run tests against multiple Java
> versions (8, 11, 17). However, due to the concurrency in multiple matrix jobs
> and the global scope of `TEST_JAVA_VERSION` and `TEST_JAVA_HOME`, the jobs
> are actually only run against one version.
> This can be fixed by defining these variables locally, using `def` keyword.
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