java lang ClassNotFoundException org apache jsp index jsp

Question

I have an old struts 1 app that has always been built using Ant  which I m converting to use Maven instead  The structure of my app is modular  with dependency management in the containing module  The containing module s dep mgmt section contains    lt dependencyManagement gt       lt dependencies gt           lt dependency gt               lt groupId gt javax servlet lt  groupId gt               lt artifactId gt javax servlet-api lt  artifactId gt               lt version gt 3 0 1 lt  version gt           lt  dependency gt           lt dependency gt               lt groupId gt javax servlet lt  groupId gt               lt artifactId gt jsp-api lt  artifactId gt               lt version gt 2 0 lt  version gt           lt  dependency gt           lt dependency gt               lt groupId gt javax servlet lt  groupId gt               lt artifactId gt jstl lt  artifactId gt               lt version gt 1 2 lt  version gt           lt  dependency gt                   lt  dependencies gt   lt  dependencyManagement gt    When I build the war  I run the package Maven job from the containing module  and run a Tomcat configuration with that war from intelliJ  I see the following in my browser   org apache jasper JasperException  org apache jasper JasperException  Unable to load class for JSP org apache jasper servlet JspServletWrapper getServlet JspServletWrapper java 161  org apache jasper servlet JspServletWrapper service JspServletWrapper java 340  org apache jasper servlet JspServlet serviceJspFile JspServlet java 313  org apache jasper servlet JspServlet service JspServlet java 260  javax servlet http HttpServlet service HttpServlet java 717   root cause org apache jasper JasperException  Unable to load class for JSP org apache jasper JspCompilationContext load JspCompilationContext java 630  org apache jasper servlet JspServletWrapper getServlet JspServletWrapper java 149  org apache jasper servlet JspServletWrapper service JspServletWrapper java 340  org apache jasper servlet JspServlet serviceJspFile JspServlet java 313  org apache jasper servlet JspServlet service JspServlet java 260  javax servlet http HttpServlet service HttpServlet java 717   root cause java lang ClassNotFoundException  org apache jsp index jsp java net URLClassLoader 1 run URLClassLoader java 202  java security AccessController doPrivileged Native Method  java net URLClassLoader findClass URLClassLoader java 190  org apache jasper servlet JasperLoader loadClass JasperLoader java 134  org apache jasper servlet JasperLoader loadClass JasperLoader java 66  org apache jasper JspCompilationContext load JspCompilationContext java 628  org apache jasper servlet JspServletWrapper getServlet JspServletWrapper java 149  org apache jasper servlet JspServletWrapper service JspServletWrapper java 340  org apache jasper servlet JspServlet serviceJspFile JspServlet java 313  org apache jasper servlet JspServlet service JspServlet java 260  javax servlet http HttpServlet service HttpServlet java 717    Everything I can find from searching on this suggests the cause is a version conflict in javax servlet jars  but there is nothing in my WEB-INF lib directory at all  I have tried using scope of provided  compile  and even install pom  but those don t do anything helpful   There is nothing additional in the tomcat logs   I confirmed that the jsps are being compiled  I am using jspc-maven-plugin   In my sub-module s  not the containing one s  pom xml  I have     lt build gt       lt  -- default goal to run if somebody doesn t pick one  rarely matters  -- gt       lt defaultGoal gt install lt  defaultGoal gt        lt  -- resources and filtering - also see configuration under maven-war-plugin below -- gt       lt resources gt           lt resource gt               lt directory gt src main resources lt  directory gt               lt filtering gt true lt  filtering gt           lt  resource gt       lt  resources gt       lt filters gt           lt filter gt src main resources   env  properties lt  filter gt           lt filter gt src main resources   env  tokens lt  filter gt       lt  filters gt        lt plugins gt           lt  -- begin - precompiling jsps -- gt           lt plugin gt               lt groupId gt org codehaus mojo lt  groupId gt               lt artifactId gt jspc-maven-plugin lt  artifactId gt               lt executions gt                   lt execution gt                       lt id gt jspc lt  id gt                       lt goals gt                           lt goal gt compile lt  goal gt                       lt  goals gt                       lt configuration gt                           lt warSourceDirectory gt   basedir  src main webroot lt  warSourceDirectory gt                           lt inputWebXml gt   basedir  src main webroot WEB-INF web xml lt  inputWebXml gt                           lt  -- lt workingDirectory gt   basedir  src main webroot lt  workingDirectory gt -- gt                       lt  configuration gt                   lt  execution gt               lt  executions gt           lt  plugin gt           lt  -- end - precompiling jsps -- gt            lt  -- used to build warfiles -- gt           lt plugin gt               lt groupId gt org apache maven plugins lt  groupId gt               lt artifactId gt maven-war-plugin lt  artifactId gt               lt version gt 2 0 lt  version gt               lt configuration gt                   lt webResources gt                       lt resource gt                           lt directory gt   pom basedir  src main webroot lt  directory gt                           lt filtering gt true lt  filtering gt                           lt  -- lt targetPath gt WEB-INF lt  targetPath gt -- gt                       lt  resource gt                   lt  webResources gt               lt  configuration gt           lt  plugin gt       lt  plugins gt   lt  build gt    I can see in the maven build output that the jsps are being compiled  But I still get the JasperException

User · Answer

What version of tomcat are you using   What appears to me is that the tomcat version is not supporting the servlet  amp  jsp versions you re using  You can change to something like below or look into your version of tomcat on what it supports and change the versions accordingly     lt dependency gt               lt groupId gt javax servlet lt  groupId gt               lt artifactId gt javax servlet-api lt  artifactId gt               lt version gt 3 0 1 lt  version gt               lt scope gt provided lt  scope gt           lt  dependency gt           lt dependency gt               lt groupId gt javax servlet lt  groupId gt               lt artifactId gt jsp-api lt  artifactId gt               lt version gt 2 0 lt  version gt               lt scope gt provided lt  scope gt           lt  dependency gt

User · Answer

I have had the same problem in my project  I used an IntelliJ Idea 14 and Maven 8  And what I ve noticed is that when I added a tomcat destination to to IDE it automaticly linked two jars from tomcat lib directory  they were servlet-api and jsp-api  Also I had them in my pom xml  I killed a whole day trying to figure out why I m getting java lang ClassNotFoundException  org apache jsp index jsp  And kewpiedoll99 is right  That is because there are dependency conflicts  When I added provided to those two jars in my pom xml I found a happiness

User · Answer

I had to delete Tomcat s work directory as it had cached previously generated files  To do this   Stop Tomcat Delete the  work  directory Start Tomcat  This will cause the work directory to be newly generated

User · Answer

In my case the problem is fixed by setting the right permissions for the tomcat home path   cd  opt apache-tomee-webprofile-7 1 0  chown -R tomcat tomcat

User · Answer

I my case I d manually moved a  war file to  var lib tomcat9 webapps and unzipped it  then did  quot chown -R tomcat tomcat   quot  in that directory and it resolved it

User · Answer

This was caused because of something like this in my case    lt jsp-config gt       lt jsp-property-group gt           lt url-pattern gt   jsp lt  url-pattern gt           lt include-prelude gt  headerfooter header jsp lt  include-prelude gt           lt include-coda gt  headerfooter footer jsp lt  include-coda gt       lt  jsp-property-group gt   lt  jsp-config gt    The problem was actually I did not have header jsp in my project  However the error message was still saying index jsp was not found

User · Answer

An addition to the other answers that didn t work for me  In my case the error occurred due to permission errors  The project got deployed while the tomcat was running as root  later when started as tomcat user I got the error from the question title   Solution in my case was to set the right permissions  e x  on a unix system   cd  lt tomcat-dir gt  chown -R  lt tomcat-user gt

User · Answer

I also lost a half of day trying to fix this   It appeared that root was my project pom xml file with dependency        lt dependency gt           lt groupId gt javax servlet jsp lt  groupId gt           lt artifactId gt jsp-api lt  artifactId gt           lt version gt 2 1 lt  version gt           lt scope gt provided lt  scope gt       lt  dependency gt    Other members of the team had no problems  At the end it appeared  that I got newer tomcat which has different version of jsp-api provided  in tomcat 7 0 60 and above it will be jsp-api 2 2    So in this case  options would be   a  installing different  older newer  tomcat like  Exactly what I did  because team is on older version  b  changing dependency scope to  compile  c  update whole project dependencies to the actual version of Tomcat lib provided APIs d  put matching version of the jsp-api jar in  tomcat folder  lib

User · Answer

It s been a while since I posted this  but I thought I would show how I figured it out  as best as I recall now     I did a Maven dependency tree to find dependency conflicts  and I removed all conflicts with exclusions in dependencies  e g     lt dependency gt       lt groupId gt commons-logging lt  groupId gt       lt artifactId gt commons-logging-api lt  artifactId gt       lt version gt 1 1 lt  version gt       lt exclusions gt           lt exclusion gt               lt groupId gt javax servlet lt  groupId gt               lt artifactId gt servlet-api lt  artifactId gt           lt  exclusion gt       lt  exclusions gt   lt  dependency gt    Also  I used the provided scope for javax servlet dependencies so as not to introduce an additional conflict with what is provided by Tomcat when I run the app    lt dependency gt       lt groupId gt javax servlet lt  groupId gt       lt artifactId gt servlet-api lt  artifactId gt       lt version gt 2 5 lt  version gt       lt scope gt provided lt  scope gt   lt  dependency gt   lt dependency gt       lt groupId gt javax servlet jsp lt  groupId gt       lt artifactId gt jsp-api lt  artifactId gt       lt version gt 2 1 lt  version gt       lt scope gt provided lt  scope gt   lt  dependency gt    HTH

[jsp] java.lang.ClassNotFoundException: org.apache.jsp.index_jsp

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