hwu2024 opened a new issue, #2181:
URL: https://github.com/apache/incubator-kie-issues/issues/2181
### Summary
**Modules:** `core/optaplanner-core-impl`
### Steps to Reproduce
Running the test normally:
```bash
mvn -pl core/optaplanner-core-impl test \
-Dtest=org.optaplanner.core.impl.heuristic.selector.move.generic.list.kopt.KOptListMoveIteratorTest#testNonsequentialKOptOnDifferentEntity
```
passes. However, the same test fails when executed under the NonDex plugin,
which perturbs the iteration order:
```bash
mvn -pl core/optaplanner-core-impl \
edu.illinois:nondex-maven-plugin:2.2.1:nondex \
-Dtest=org.optaplanner.core.impl.heuristic.selector.move.generic.list.kopt.KOptListMoveIteratorTest#testNonsequentialKOptOnDifferentEntity
```
The test fails with:
```
Expecting actual:
[null,
"v4",
"e1-extra-0",
"v7",
"e1-extra-3",
"e2-extra-1",
"v2",
"e1-extra-1",
"v6",
"v2",
"e2-extra-2",
"e1-extra-4",
"v9"]
to contain exactly (and in same order):
[null,
"v0",
"e1-extra-0",
"v3",
"e1-extra-3",
"e2-extra-1",
"v8",
"e1-extra-1",
"v2",
"v8",
"e2-extra-2",
"e1-extra-4",
"v5"]
```
The expected and actual results differ only in the v* values
### Root Cause
`Collectors.toMap()` creates a `HashMap` by default. Iterating
`entityToListSize.entrySet()` therefore has unspecified order. The test later
overwrites `removedEdgeList` with a hard‑coded list of expected edges that
assumes a specific iteration order, so the assertion fails when the order
changes.
### Fixes
Make the test deterministic by using `LinkedHashMap` for `entityToListSize`,
so that iteration order reflects the encounter order of `entities`
I am currently working on the fixes and will later provide a PR related to
this issue.
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