KieHelper.build is very slow on Drools 6.4.0.Final -------------------------------------------------- Key: DROOLS-5108 URL: https://issues.redhat.com/browse/DROOLS-5108 Project: Drools Issue Type: Bug Components: core engine Reporter: Ravi M Assignee: Mario Fusco Priority: Major Tried build with 230 rules, it is taking nearly 10 seconds {code:java} org.kie.internal.utils.KieHelper kieHelper = new org.kie.internal.utils.KieHelper(); kieHelper.setClassLoader(this.getClass().getClassLoader()); kieHelper.addContent( drlContent, ResourceType.DRL ); Results res = kieHelper.verify(); if ( res.hasMessages( Message.Level.ERROR ) ) { throw new DroolsCompilationException("Exception while compiling rule "); } if ( kbConf == null ) { kbConf = KieServices.Factory.get().newKieBaseConfiguration(); } kbConf.setOption( EqualityBehaviorOption.EQUALITY ); KieBase kieBase = kieHelper.build( kbConf ); {code}