Receiving drools dialect Error message whenever a new set of rules are being compiled in the service

[Vineeth Dasaraju]

Hi,

We’ve encountered this failure in the drools rule compilation whenever a new set of rules are added. The weird thing here is if we restart the service, then we don't see this issue.

Unable to build KieBaseModel:kBase

[DialectError message='Unable to wire compiled classes, probably related to compilation failures:Unable to wire up JavaDialect']

We are using Drools 6.3.0.FINAL with Java jre1.8.0_144. The code being used to compile the rules is as follows:

            int kieJarReleaseId = 0;

    ReleaseId releaseId;

            KieServices ks = KieServices.Factory.get();

            KieModuleModel kieModuleModel;

            releaseId = ks.newReleaseId("org.kie", "test-upgrade", "1." + kieJarReleaseId++ + ".0");

            // Create the in-memory File System and add the resources files to it

            String kBaseName = "kBase";

            kieModuleModel = ks.newKieModuleModel();

            KieBaseModel kieBaseModel = kieModuleModel.newKieBaseModel(kBaseName);

            kieBaseModel.setDefault(true).setEqualsBehavior(EqualityBehaviorOption.EQUALITY).setEventProcessingMode(

                EventProcessingOption.STREAM);

            kieBaseModel.newKieSessionModel("defaultKSession").setType(KieSessionType.STATEFUL).setDefault(true);

            // Kie Base Configuration

            KieBaseConfiguration kbConfig = ks.newKieBaseConfiguration();

            kbConfig.setOption(ConstraintJittingThresholdOption.get(-1));

            if (!drlFileContent.isEmpty()) {

                KieFileSystem kfs = ks.newKieFileSystem();

                kfs.generateAndWritePomXML(releaseId);

                kfs.writeKModuleXML(kieModuleModel.toXML());

                kfs.write("src/main/resources/rules.drl", drlFileContent);

                KieBuilder kbuilder = ks.newKieBuilder(kfs);

                kbuilder.buildAll();

                if (kbuilder.getResults().hasMessages(Level.ERROR)) {

                    return false;

                }

                KieModule kModule = kbuilder.getKieModule();

                if(kieJarReleaseId > 1){

                    KieRepository kRepo = ks.getRepository();

                    kRepo.removeKieModule(ks.newReleaseId("org.kie", "test-upgrade", "1." + (kieJarReleaseId-2)+".0"));

                }

                kContainer = ks.newKieContainer(kModule.getReleaseId());

            }

Could any of the experts let me know what we are missing /  why we are encountering this error?

Regards,

Vineeth

[Mario Fusco]

Hi,

is there any reason why you're doing this?

kbConfig.setOption(ConstraintJittingThresholdOption.get(-1));

Also please send a complete reproducer otherwise it will be impossible for us to understand what's going wrong there.

Thanks,

Mario

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[Vineeth Dasaraju]

Hi Mario,

No specific reason for setting that. 

We are observing this behavior in only one use case where drools has been deployed into a docker container. I believe that the issue is specific to that environment. How do you suggest that we reproduce this situation?

Regards,

Vineeth

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