1.apache / incubator-kieApache KIE (Knowledge Is Everything) is the home of Drools, OptaPlanner, jBPM, and Kogito.rule-enginejavadmnhacktoberfestapachedrools+3 moreJavaAPACHE-2.06.3K total2.6K forks+10 starsfrom 6,330 · score 2.40