[rules-users] [OptaPlanner] conflict Resolver 'org.drools.core.conflict.DepthConflictResolver' not found

[Sandeep Bandela]

Hi,
I am using planner 6.0.0.beta5. to schedule some kind of events like in
curriculum example, and created web front end for this using Vaadin.
but for some reason some users (only few) from this web client get this
exception (at the end) and scheduler fails.
What could have been the cause for this? the code I have is as follows.

SolverFactory solverFactory = new XmlSolverFactory(

"/org/optaplanner/examples/curriculumcourse/solver/curriculumCourseSolverConfig.xml");
        TerminationConfig tc =
solverFactory.getSolverConfig().getTerminationConfig();
        tc.setMaximumSecondsSpend(120L);
        Solver solver = solverFactory.buildSolver();

creating the solver is throwing the exception.

log:

*java.lang.IllegalArgumentException: conflict Resolver
'org.drools.core.conflict.DepthConflictResolver' not found
        at
org.drools.core.RuleBaseConfiguration.determineConflictResolver(RuleBaseConfiguration.java:866)
~[drools-core-6.0.0.Beta5.jar:6.0.0.Beta5]
        at
org.drools.core.RuleBaseConfiguration.init(RuleBaseConfiguration.java:455)
~[drools-core-6.0.0.Beta5.jar:6.0.0.Beta5]
        at
org.drools.core.RuleBaseConfiguration.init(RuleBaseConfiguration.java:411)
~[drools-core-6.0.0.Beta5.jar:6.0.0.Beta5]
        at
org.drools.core.RuleBaseConfiguration.<init>(RuleBaseConfiguration.java:262)
~[drools-core-6.0.0.Beta5.jar:6.0.0.Beta5]
        at
org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieBaseConfiguration(KieServicesImpl.java:146)
~[drools-compiler-6.0.0.Beta5.jar:6.0.0.Beta5]
        at
org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildKieBase(ScoreDirectorFactoryConfig.java:330)
~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]
        at
org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildDroolsScoreDirectorFactory(ScoreDirectorFactoryConfig.java:280)
~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]
        at
org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildScoreDirectorFactory(ScoreDirectorFactoryConfig.java:187)
~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]
        at
org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildScoreDirectorFactory(ScoreDirectorFactoryConfig.java:175)
~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]
        at
org.optaplanner.core.config.solver.SolverConfig.buildSolver(SolverConfig.java:145)
~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]
        at
org.optaplanner.core.config.solver.XmlSolverFactory.buildSolver(XmlSolverFactory.java:104)
~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]*

-- 
Regards,
Sandeep Bandela.
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