when i am running tomcat manager i am getting this error
java.lang.NullP ointerException
org.apache.cata lina.manager.HT MLManagerServle t.list(HTMLMana gerServlet.java :423)
org.apache.cata lina.manager.HT MLManagerServle t.doGet(HTMLMan agerServlet.jav a:161)
javax.servlet.h ttp.HttpServlet .service(HttpSe rvlet.java:743)
javax.servlet.h ttp.HttpServlet .service(HttpSe rvlet.java:856)
plz suggist me.