when i am running tomcat manager i am getting this error
java.lang.NullPointerException
org.apache.catalina.manager.HTMLManagerServlet.lis t(HTMLManagerServlet.java:423)
org.apache.catalina.manager.HTMLManagerServlet.doG et(HTMLManagerServlet.java:161)
javax.servlet.http.HttpServlet.service(HttpServlet .java:743)
javax.servlet.http.HttpServlet.service(HttpServlet .java:856)
plz suggist me.