Problem starting share installed from labs

[punit_oza]

I am getting an error when running the share application

java.lang.NoSuchMethodError: javax.servlet.jsp.JspFactory.getJspApplicationContext(Ljavax/servlet/ServletContextLjavax/servlet/jsp/JspApplicationContext;
   org.apache.jsp.index_jsp._jspInit(index_jsp.java:22)
   org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:80)

Kindly help solve this error..

[punit_oza]

Solved this error

It was due to that my tomcat work folder had a precompiled index.jsp. It was compiled at the time of previous installation.
I emptied my work folder and restarted the tomcat. It worked.