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[BUG] Java: Problem.addConstraint accepts the same Constraint twice #2224
Description
In the Java bindings, Problem.addConstraint accepts the same Constraint object twice. The second call overwrites the constraint's index and the list holds it twice, so the problem has an inconsistent constraint list.
Expected: IllegalArgumentException, and getNumConstraints() stays 1.
Disabled test that reproduces it (in #2219): ModelEdgeCaseTest.addingTheSameConstraintTwiceToOneProblemIsRejected
🤖 Generated with Claude Code
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akhil9tiet commentedon Oct 27, 2026
I'd like to work on this — please assign it to me.
ramakrishnap-nv commentedon Oct 27, 2026
Thank you @akhil9tiet, please create the PR and ping me
test(java): cover model, lifecycle, settings, file and callback corne…