[JPMS] Calls coming from unnamed module --------------------------------------- Key: DROOLS-3766 URL: https://issues.jboss.org/browse/DROOLS-3766 Project: Drools Issue Type: Enhancement Components: core engine Affects Versions: 7.19.0.Final Reporter: Martin Kröning Assignee: Mario Fusco Priority: Major When running Drools in the context of OptaPlanner on the modulepath ([Reference|https://github.com/kiegroup/optaplanner/pull/492]), it is required to open up the domain package to all modules. Only opening up to `org.drools.core` does not work, because the calls come from an unnamed module: {code:bash} Exception in thread "main" java.lang.IllegalAccessError: class org.drools.base.io.github.mwkroening.optaplannermodulepathexample.domain.CloudProcess520162288$getComputer (in unnamed module @0x4d68b571) cannot access class io.github.mwkroening.optaplannermodulepathexample.domain.CloudProcess (in module io.github.mwkroening.optaplannermodulepathexample) because module io.github.mwkroening.optaplannermodulepathexample does not export io.github.mwkroening.optaplannermodulepathexample.domain to unnamed module @0x4d68b571 at org.drools.base.io.github.mwkroening.optaplannermodulepathexample.domain.CloudProcess520162288$getComputer.getValue(Unknown Source) at org.drools.core@7.18.0.Final/org.drools.core.base.extractors.BaseObjectClassFieldReader.getHashCode(BaseObjectClassFieldReader.java:180) at org.drools.core@7.18.0.Final/org.drools.core.base.ClassFieldReader.getHashCode(ClassFieldReader.java:224) at org.drools.core@7.18.0.Final/org.drools.core.util.AbstractHashTable$FieldIndex.hashCodeOf(AbstractHashTable.java:344) at org.drools.core@7.18.0.Final/org.drools.core.util.AbstractHashTable$SingleIndex.hashCodeOf(AbstractHashTable.java:409) at org.drools.core@7.18.0.Final/org.drools.core.util.index.TupleIndexHashTable.getOrCreate(TupleIndexHashTable.java:392) at org.drools.core@7.18.0.Final/org.drools.core.util.index.TupleIndexHashTable.add(TupleIndexHashTable.java:358) at org.drools.core@7.18.0.Final/org.drools.core.phreak.PhreakAccumulateNode.doRightInserts(PhreakAccumulateNode.java:217) at org.drools.core@7.18.0.Final/org.drools.core.phreak.PhreakAccumulateNode.doNode(PhreakAccumulateNode.java:85) at org.drools.core@7.18.0.Final/org.drools.core.phreak.RuleNetworkEvaluator.switchOnDoBetaNode(RuleNetworkEvaluator.java:581) at org.drools.core@7.18.0.Final/org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:552) at org.drools.core@7.18.0.Final/org.drools.core.phreak.RuleNetworkEvaluator.evalNode(RuleNetworkEvaluator.java:379) at org.drools.core@7.18.0.Final/org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:339) at org.drools.core@7.18.0.Final/org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:175) at org.drools.core@7.18.0.Final/org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:133) at org.drools.core@7.18.0.Final/org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:213) at org.drools.core@7.18.0.Final/org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:88) at org.drools.core@7.18.0.Final/org.drools.core.concurrent.AbstractRuleEvaluator.internalEvaluateAndFire(AbstractRuleEvaluator.java:34) at org.drools.core@7.18.0.Final/org.drools.core.concurrent.SequentialRuleEvaluator.evaluateAndFire(SequentialRuleEvaluator.java:43) at org.drools.core@7.18.0.Final/org.drools.core.common.DefaultAgenda.fireLoop(DefaultAgenda.java:1062) at org.drools.core@7.18.0.Final/org.drools.core.common.DefaultAgenda.internalFireAllRules(DefaultAgenda.java:1009) at org.drools.core@7.18.0.Final/org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1001) at org.drools.core@7.18.0.Final/org.drools.core.impl.StatefulKnowledgeSessionImpl.internalFireAllRules(StatefulKnowledgeSessionImpl.java:1330) at org.drools.core@7.18.0.Final/org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1321) at org.drools.core@7.18.0.Final/org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1305) at org.optaplanner.core@7.18.0.Final/org.optaplanner.core.impl.score.director.drools.DroolsScoreDirector.calculateScore(DroolsScoreDirector.java:171) at org.optaplanner.core@7.18.0.Final/org.optaplanner.core.impl.solver.recaller.BestSolutionRecaller.solvingStarted(BestSolutionRecaller.java:69) at org.optaplanner.core@7.18.0.Final/org.optaplanner.core.impl.solver.AbstractSolver.solvingStarted(AbstractSolver.java:76) at org.optaplanner.core@7.18.0.Final/org.optaplanner.core.impl.solver.DefaultSolver.solvingStarted(DefaultSolver.java:210) at org.optaplanner.core@7.18.0.Final/org.optaplanner.core.impl.solver.DefaultSolver.solve(DefaultSolver.java:190) at io.github.mwkroening.optaplannermodulepathexample/io.github.mwkroening.optaplannermodulepathexample.App.main(App.java:22) {code} It would be great, if it would be possible to make these kinds of calls come from a named module.