java.lang.NoClassDefFoundError: org/drools/runtime/rule/AgendaFilter （activity整合drools 时，出现该异常）

drools 从5.x版本升6.x会出现该错误
*解决办法引入jar
*<dependency> <groupId>org.drools</groupId> <artifactId>knowledge-api</artifactId> <version>6.2.0.CR2</version> </dependency>

https://mvnrepository.com/artifact/org.drools/knowledge-api/6.2.0.CR2

原文链接：https://blog.csdn.net/weixin_43864599/article/details/95461916