java.lang.NullPointerException at org.apache.jsp.index_jsp._jspInit
I have searched regarding that and found that it might be problem of servlet-api.jar and jsp-api.jar but i have copied both from tomcat to my project's classpath
It look like that you misunderstood the answers. Having them in your webapp's runtime classpath (WEB-INF/lib) is the whole cause of this problem! Get rid of them.
The servletcontainer itself already ships with those libraries out the box. Providing randomly downloaded libraries from an arbitrary container of a possibly different make/version along with the webapp would only lead to this kind of problems. If you did this in order to "fix" compilation errors in your webapp project, then you should have solved it differently. See the below links for the how:
See also:
- java.lang.NullPointerException at org.apache.jsp.foo_jsp._jspInit(foo_jsp.java:22)
- How do I import the javax.servlet API in my Eclipse project?
chetan
Updated on June 05, 2022Comments
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chetan almost 2 years
When i try to run project deployed inside tomcat i get error like
java.lang.NullPointerException at org.apache.jsp.index_jsp._jspInit(index_jsp.java:23) at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:52) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:159) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555) at java.lang.Thread.run(Thread.java:619)
I have searched regarding that and found that it might be problem of servlet-api.jar and jsp-api.jar but i have copied both from tomcat to my project's classpath still i am getting the same error.
Jsp :
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <%--<a href="login.iface">Click Here</a> --%> </body> </html>
classpath contain following list of jar
antlr-2.7.6 commons-beanutils commons-collections commons-collections-3.1 commons-digester commons-logging commons-logging-1.1 dom4j-1.6.1 ejb3-persistence hibernate3 hibernate-annotations hibernate-commons-annotations icefaces-1.8.2 icefaces-comps-1.8.2 javassist-3.9.0.GA jsf-api jsf-facelets jsf-impl mysql-connector-java-3.1.8-bin slf4j-api-1.5.11 slf4j-simple-1.5.11