For input string: ""

java.lang.NumberFormatException: For input string: ""
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
	at java.lang.Long.parseLong(Long.java:424)
	at java.lang.Long.parseLong(Long.java:461)
	at com.bzprod.buzzmail.servlet.view.ViewReqHandler.doGet(ViewReqHandler.java:89)
	at com.bzprod.buzzmail.servlet.BuzzmailServlet.doGet(BuzzmailServlet.java:209)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:115)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:92)
	at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:106)
	at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:207)
	at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:173)
	at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229)
	at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:274)
	at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514)
	at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:527)
	at com.caucho.util.ThreadPool.run(ThreadPool.java:449)
	at java.lang.Thread.run(Thread.java:595)