2: 3: Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:618) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:500) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339) javax.servlet.http.HttpServlet.service(HttpServlet.java:728) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) com.jerei.website.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:87)

Root Cause 

javax.servlet.ServletException: javax.servlet.jsp.JspException: java.lang.NullPointerException
	org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:913)
	org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:846)
	org.apache.jsp.culture.partynews_002ddetail_jsp._jspService(partynews_002ddetail_jsp.java:769)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	com.jerei.website.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:87)

Root Cause 

java.lang.NullPointerException
	org.apache.jsp.tag.web.core.common.seo_tag.doTag(seo_tag.java:134)
	org.apache.jsp.culture.partynews_002ddetail_jsp._jspService(partynews_002ddetail_jsp.java:110)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	com.jerei.website.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:87)

Note The full stack trace of the root cause is available in the server logs.

Apache Tomcat/7.0.104