[jira] Closed: (MERCURY-40) DefaultSatSolver is non-deterministic

["Oleg Gusakov (JIRA)" <ji...@codehaus.org>]

     [ http://jira.codehaus.org/browse/MERCURY-40?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Oleg Gusakov closed MERCURY-40.
-------------------------------

    Resolution: Fixed

ITs pass - looks like solution works!

> DefaultSatSolver is non-deterministic
> -------------------------------------
>
>                 Key: MERCURY-40
>                 URL: http://jira.codehaus.org/browse/MERCURY-40
>             Project: Mercury
>          Issue Type: Bug
>    Affects Versions: 1.0.0-alpha-2
>            Reporter: Benjamin Bentmann
>         Attachments: mercury-failed.txt, mercury-passed.txt, org.apache.maven.mercury.metadata.sat.DefaultSatSolverTest.txt
>
>
> Running the unit test {{DefaultSatSolverTest.testSingleVersionResolution()}} once on Java 1.5 and 1.6 revealed a bug in {{DefaultSatSolver.solve()}} due to usage of {{HashMap}}. See attached logs (passed with 1.5, failed with 1.6).
> The internal tweaks to the hash algos employed by the different JRE versions exhibited a non-deterministic ordering of the artifact metadata list.

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