In activiti business rule task while deploying I'm getting the following error.
java.lang.NoClassDefFoundError: org/drools/runtime/rule/AgendaFilter
I've added the jar file in the WEB-INF/lib folder and then I deployed the .bar file but then also i'm getting this error for activiti-explorer.
In wso2 bps also I deployed the jar file in repository/components/lib directory and after restarting I deployed the .bar file same exception I got.
You need to make sure that you have Drools in the classpath, can you see any drools jar inside the WEB-INF/lib directory? It sounds like that is the only thing missing if you are getting that exception.