Details
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Enhancement
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Resolution: Done
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Minor
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None
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None
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2022 Week 29-31 (from Jul 18)
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2
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NEW
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NEW
Description
To reproduce:
- Take optaplanner-quickstarts hello-world
- exclude non-bavet stuff:
<dependency>
<groupId>org.optaplanner</groupId>
<artifactId>optaplanner-core</artifactId>
<exclusions>
<exclusion>
<groupId>org.optaplanner</groupId>
<artifactId>optaplanner-constraint-drl</artifactId>
</exclusion>
<exclusion>
<groupId>org.optaplanner</groupId>
<artifactId>optaplanner-constraint-streams-drools</artifactId>
</exclusion>
</exclusions>
</dependency>
- Adjust TimeTableApp to use Bavet.
- Run "mvn clean install". You get this error message:
[ERROR] org.acme.schooltimetabling.solver.TimeTableConstraintProviderTest.teacherTimeEfficiency Time elapsed: 0.003 s <<< ERROR!
java.lang.IllegalStateException:
Constraint Streams implementation was not found on the classpath.
Maybe include org.optaplanner:optaplanner-constraint-streams-drools dependency in your project?
Maybe ensure your uberjar bundles META-INF/services from included JAR files?
at org.acme.schooltimetabling.solver.TimeTableConstraintProviderTest.teacherTimeEfficiency(TimeTableConstraintProviderTest.java:75)
What's wrong? You forgot to switch the tests to bavet too! Very easy to do, but the error message puts you on the wrong path.
Proposal A)
Add an extra Maybe line:
"Maybe you want to use Bavet instead of Drools: in your tests, call ConstraintVerifier.build(...).withConstraintStreamImplType(BAVET).\n"
