Mark Kretschmann created DROOLS-782: --------------------------------------- Summary: NullPointerException Updating KieContainer KieModule Version Key: DROOLS-782 URL: https://issues.jboss.org/browse/DROOLS-782 Project: Drools Issue Type: Bug Reporter: Mark Kretschmann Assignee: Mark Proctor I'm trying to dynamically update the rule definitions inside a KieContainer while a KieSession is running, invoked with KieSession.fireUntilHalt(). We need to leverage KieSession.fireUntilHalt() as all of our rules in this service are timer rules, as we're leveraging drools as a scheduling service here. The code below shows how I'm testing this. First I setup two rules to print every 3 and 6 seconds, then execute KieSession.fireUntilHalt(). Then later on I update the KieContainer version with three rules which print out @ 5, 8 and 10 seconds. I immediately receive a NullPointerException after calling the KieContainer.updateToVersion. public void run() { String testRuleAdd = "rule \"test-rule-add\" timer (cron: */3 * * * * ?; start=\"4-MAY-2015\", end=\"30-JUN-2015\") when eval(true) then System.out.println('Hey there, I print every three seconds'); end "; String testRuleAdd2 = "rule \"test-rule-add-two\" timer (cron: */6 * * * * ?; start=\"4-MAY-2015\", end=\"30-JUN-2015\") when eval(true) then System.out.println('Hey there, I print every six seconds'); end "; String testRuleAdd3 = "rule \"test-rule-add-three\" timer (cron: */10 * * * * ?; start=\"4-MAY-2015\", end=\"30-JUN-2015\") when eval(true) then System.out.println('Hey there, I print every ten seconds'); end "; String testRuleAdd4 = "rule \"test-rule-add-four\" timer (cron: */5 * * * * ?; start=\"4-MAY-2015\", end=\"30-JUN-2015\") when eval(true) then System.out.println('Hey there, I print every five seconds'); end "; String testRuleAdd5= "rule \"test-rule-add-five\" timer (cron: */8 * * * * ?; start=\"4-MAY-2015\", end=\"30-JUN-2015\") when eval(true) then System.out.println('Hey there, I print every eight seconds'); end "; try { KieServices ks = KieServices.Factory.get(); KieFileSystem kfs = ks.newKieFileSystem(); EntityManager em = modelService.createEntityManager(); List<Schedule> schedules = em .createQuery("select s from Schedule s where s.enabled = true", Schedule.class) .getResultList(); schedules.forEach(s -> System.out.println(s.getPath() + " : " + s.getDefinition())); schedules.forEach(s -> kfs.write(s.getPath(), s.getDefinition())); ArrayList<String> testRules = new ArrayList<String>(); testRules.add(testRuleAdd); kfs.write("src/main/resources/r1.drl", testRuleAdd); kfs.write("src/main/resources/r2.drl", testRuleAdd2); KieBuilder kb = ks.newKieBuilder(kfs).buildAll(); if (kb.getResults().hasMessages(Message.Level.ERROR)) { throw new RuntimeException(kb.getResults().toString()); } logger.trace("repository version: " + ks.getRepository().getDefaultReleaseId()); ReleaseId initialReleaseId = ks.getRepository().getDefaultReleaseId(); KieContainer kc = ks.newKieContainer(initialReleaseId); KieSession ksession = kc.newKieSession(); ksession.setGlobal("queueService", queueService); new Thread(new Runnable() { public void run() { ksession.fireUntilHalt(); } }).start(); Thread.sleep((10000)); // Update release version with same KieSession ReleaseId relId2 = ks.newReleaseId("os-rules", "test-release-upgrade", "1.0.1"); KieFileSystem kfs_2 = ks.newKieFileSystem(); kfs_2.generateAndWritePomXML(relId2); // kfs_2.write("src/main/resources/r1.drl", testRuleAdd); // kfs_2.write("src/main/resources/r2.drl", testRuleAdd2); kfs_2.write("src/main/resources/r3.drl", testRuleAdd3); kfs_2.write("src/main/resources/r4.drl", testRuleAdd4); kfs_2.write("src/main/resources/r5.drl", testRuleAdd5); KieBuilder kb2 = ks.newKieBuilder(kfs_2).buildAll(); if (kb2.getResults().hasMessages(org.kie.api.builder.Message.Level.ERROR)) { for (org.kie.api.builder.Message result : kb2.getResults().getMessages() ) { System.out.println(result.getText()); } throw new RuntimeException((kb2.getResults().toString())); } KieModule km = ks.getRepository().getKieModule((relId2)); kc.updateToVersion(relId2); } catch (Exception ex) { logger.error("Failed to start the schedule runner: " + ex.getMessage()); } } -- This message was sent by Atlassian JIRA (v6.3.15#6346)