[jboss-jira] [JBoss JIRA] (JBRULES-3406) Planner: a Solution with a @PlanningEntityCollectionProperty or @PlanningEntityProperty on a method that does not return a planning entity should fail with a decent error message.
[
https://issues.jboss.org/browse/JBRULES-3406?page=com.atlassian.jira.plug...
]
Geoffrey De Smet resolved JBRULES-3406.
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Resolution: Done
Fixed with
{code}
java.lang.IllegalArgumentException: A planningEntity is an instance of a
planningEntityImplementationClass (class
org.drools.planner.examples.machinereassignment.domain.MrBalancePenalty) that is not
configured as a planningEntity.
If that class (MrBalancePenalty) is not a planningEntityClass (or subclass thereof), check
your Solution implementation's annotated methods.
If it is, check your solver configuration.
{code}
Planner: a Solution with a @PlanningEntityCollectionProperty or
@PlanningEntityProperty on a method that does not return a planning entity should fail
with a decent error message.
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Key: JBRULES-3406
URL: https://issues.jboss.org/browse/JBRULES-3406
Project: Drools
Issue Type: Enhancement
Security Level: Public(Everyone can see)
Components: drools-planner
Reporter: Geoffrey De Smet
Assignee: Geoffrey De Smet
Fix For: 5.4.0.CR1
"
I accidently denoted the wrong class with the annotator
@PlanningEntityCollectionProperty ; a class which was NOT a planning entity.
Apparently, Drools Planner does not attempt to check for such a possibility,
hence I get:
{code}
Exception in thread "main" java.lang.NullPointerException
at
org.drools.planner.core.domain.solution.SolutionDescriptor.getAllFacts(SolutionDescriptor.java:135)
at
org.drools.planner.core.solution.director.DefaultSolutionDirector.getWorkingFacts(DefaultSolutionDirector.java:129)
at
org.drools.planner.core.solution.director.DefaultSolutionDirector.resetWorkingMemory(DefaultSolutionDirector.java:123)
at
org.drools.planner.core.solution.director.DefaultSolutionDirector.setWorkingSolution(DefaultSolutionDirector.java:97)
at
org.drools.planner.core.solver.DefaultSolver.setPlanningProblem(DefaultSolver.java:97)
at in.co.technovia.examduties.ExamDutiesApp.main(ExamDutiesApp.java:47)
{code}
Please check for such a possibility in future versions of Drools Planner and
emit a more meaningful error message.
"
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