Hi all,
I’m a student in Singapore,
studying about search engine. I’ve encountered a problem when perform
searching (i.e. requesting http://localhost:8080/search.jsp?query=google).
The error message was:
type Exception report
message
description The server encountered an internal error () that prevented it from
fulfilling this request.
exception
org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.NullPointerException
net.nutch.searcher.NutchBean.init(NutchBean.java:82)
net.nutch.searcher.NutchBean.<init>(NutchBean.java:68)
net.nutch.searcher.NutchBean.<init>(NutchBean.java:58)
net.nutch.searcher.NutchBean.get(NutchBean.java:50)
org.apache.jsp.search_jsp._jspService(search_jsp.java:74)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache
Tomcat/5.0.28 logs.
Thanks for any suggestion.
Cheers,
Giang
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