Hello All I create a JavaBean and convert it to a Jar File then upload it. Also i create a sample rule that uses uploaded Jar File then i create a test scenario to test my rule but when i run my scenario Guvnor says : Unable to load a required class ! Unable to find class 'Fire' ! my java bean is like it : package com.employee; import java.util.Date; public class Fire {     private Room room;     private Date time;         public Fire(){}     public Fire(Room room,Date time)     {         this.room = room;         this.time = time;     }         public Room getRoom() {         return room;     }     public void setRoom(Room room) {         this.room = room;     }     public Date getTime() {         return time;     }     public void setTime(Date time) {         this.time = time;     }        } Any Help Appreciated Thanks in advance S.M.H.Jamali