[MRESOLVER-321] Resolver while collecting may end up in busy loop without any possibility to be stopped

[jira-importer]

Tamas Cservenak opened MRESOLVER-321 and commented

As reported by users, under some conditions (MRESOLVER-316) resolver is able to spin itself into busy loop, without possibility to stop it (ie. by interrupting the thread of it).

Example report: #236

The reproducer (until MRESOLVER-316 is fixed) is present in PR above (the demo code and the diff for it).

While the PR proposes a code change, that is not covering all, as in case of MRESOLVER-316 bug, the endless loop happens in visitor bit (DependencyVisitor visiting DependencyNodes).

Solutiom: make collector but also visitor sense thread interruption.

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Remote Links:

• GitHub Pull Request #380
  

Backported to: 2.0.0-alpha-3

[jira-importer]

Tamas Cservenak commented

While this still stands (resolver thread during visiting depNodes cannot be interrupted), IMHO this came up as "symptom handling" for MRESOLVER-316 (user could not interrupt resolver in endless loop) that is fixed, so am pulling this issue out of 1.9.5 for now.