STEP : 1) DRL files generation (43 rules). 2) PKG compilation KnowledgeBuilder kBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); File droolsWorkspaceFile = new File(_droolsWorkspace); for (String file: droolsWorkspaceFile.list()) { if (file != null && file.endsWith(".drl")) { kBuilder.add(ResourceFactory.newFileResource(_droolsWorkspace + file), ResourceType.DRL); } } KnowledgePackage pkg = null; if (kBuilder.getKnowledgePackages().iterator().hasNext()) { pkg = kBuilder.getKnowledgePackages().iterator().next(); } if (kBuilder.getErrors() != null && !StringUtil.isEmpty(kBuilder.getErrors().toString())) { LOGGER.error(kBuilder.getErrors().toString() + "\n"); } FileOutputStream out = new FileOutputStream(_droolsWorkspace + "MarketingActionEngineRules.pkg"); try { if (pkg != null) { DroolsStreamUtils.streamOut(out, pkg); } } finally { out.close(); } 3) Launch rules (43 rules executed) kSession.fireAllRules(); 4) DRL files generation (43 rules : same rules). 5) PKG compilation 6) Refresh Knowledge Agent ResourceFactory.getResourceChangeScannerService().scan(); 7) Launch rules (41 rules executed) The first two rules are not executed