Re: Tomcat Internal Architect for JSP compilation?
As Suggested by @Tim i used precompiled jsp feature and now i am not
getting 500 error even i deleted the */tmp/tomcat** directory
@Bean
>
> public ServletContextInitializer preCompileJspsAtStartup() {
>
> return servletContext -> {
>
> Set jspPaths = servletContext.getResourcePaths("/WEB-INF/jsp/");
>
> if (jspPaths != null) {
>
> for (String jspPath : jspPaths) {
>
> if (jspPath.endsWith(".jsp")) {
>
> //logger.info("Registering JSP: " + jspPath);
>
> ServletRegistration.Dynamic reg = servletContext.addServlet("jspServlet_"
> + jspPath, "org.apache.jasper.servlet.JspServlet");
>
> reg.setInitParameter("jspFile", jspPath);
>
> reg.setLoadOnStartup(99);
>
> reg.addMapping(jspPath);
>
> }
>
> }
>
> } else {
>
> logger.error("No JSP files found in /WEB-INF/jsp/ directory");
>
> }
>
> };
>
> }
>
>
> private static String getResourcePath(ServletContext servletContext,
> String path) throws MalformedURLException {
>
> URL resourceUrl = servletContext.getResource(path);
>
> return resourceUrl != null ? resourceUrl.getPath() : null;
>
> }
>
But still I am not able to find the root cause why tomcat is throwing the
error *500(ClassNotFoundException)* when deleting the /tmp/tomcat*
directory .
Observations
1- Application UI open A.jsp
2- Now Delete /tmp/tomcat*/ Directory
3- Access* A.jsp* it will work
4- Access *B.jsp* it will throw 500(ClassNotFoundException)
5- Access C.jsp it will work and regenerate the */tmp/tomcat** directory
6- B.jsp will not work upto the time i won't restart the tomcat.
On Tue, Mar 26, 2024 at 8:39 PM Christopher Schultz <
ch...@christopherschultz.net> wrote:
> Subodh,
>
> On 3/26/24 06:59, Subodh Joshi wrote:
> > I am planning to do same now and may be we will use the property
> >
> > *server.tomcat.basedir*
> >
> > But this may create another issue ,it will grow the size of the folder.
>
> What makes you say that?
>
> > Is this possible in the coming release tomcat/embedded tomcat give a
> > feature to delete the basedir at the tomcat restart/start and
> > recreate it?
>
> This sounds more like a deployment detail and not a Tomcat-launch
> detail. Since you are using Spring Boot, why not just delete the
> directory from your own code before Tomcat launches?
>
> > One more thing is unanswered after deleting the tomcat folder why first
> > page clicked is throwing 500 error with ClassNotFoundException if its not
> > accessed before deleting the tomcat folder?
>
> I'm sorry, I can't answer that without spending a lot of time looking at
> your environmemnt.
>
> If you stop deleting the directory while Tomcat is running and it stops
> returning 500 responses, then I think you have solved your problem
> without discovering the absolute root-cause of the problem. But you are
> pulling the rug out from underneath a running application and expecting
> it to work without failing. I think that's not a realistic expectation.
> Tomcat relies on its local environment being stable. Dont' destabilize it.
>
> If you absolutely need Tomcat to not-fail under thes conditions, we'd be
> happy to have you research it and provide a patch or pull-request.
>
> -chris
>
> > On Fri, Mar 22, 2024 at 7:01 PM Christopher Schultz <
> > ch...@christopherschultz.net> wrote:
> >
> >> Subodh,
> >>
> >> On 3/22/24 01:36, Subodh Joshi wrote:
> >>> Hi Chris
> >>>
> >>> Thanks for your response.
> >>>
> >>> So i added below properties in application.properties file
> >>>
> spring.mvc.cache-control.cache-allowed=false
>
> and then Deleted the /tmp/tomcat directory . So now when i restart the
> >>> server A.jsp only fail with 500 error (ClassNotFoundException) as this
> is
> >>> first page which i was trying to load, rest JSP pages working fine
> >> without
> >>> any issue .
> >>>
> >>> Why i am doing this exercise?
> >>> In our some of the deployed linux environment many clients are
> >> complaining
> >>> about this issue , We tried to monitor who actually deleting these
> >>> /tmp/tomcat folder but still we are not able to figure it out and we
> are
> >>> not able to reproduce it . So i have to do reproduce it manually
> deleting
> >>> the /tmp/tomcat directory.
> >>
> >> What if you don't use /tmp as your work directory location? /tmp is
> >> supposed to be for actually temporary files. These files could live for
> >> decades if you never changed your source .jsp files or re-deployed your
> >> application.
> >>
> >> -chris
> >>
> >>> On Thu, Mar 21, 2024 at 7:24 PM Christopher Schultz <
> >>> ch...@christopherschultz.net> wrote:
> >>>
> Subudh,
>
> On 3/21/24 07:32, Subodh Joshi wrote:
> > Expert,
> >
> > Recently i came across a issue and i was getting no clue what was
> going
> on
> > wrong with the Application.
> >
> > So here is the issue , we were getting following issue in our web
> > application(Springboot+Embedded Tomcat) which is deployed into Linux
> machine
> >
> > java.lang.ClassNotFoundException:
> >>
Re: Tomcat Internal Architect for JSP compilation?
Subodh, On 3/26/24 06:59, Subodh Joshi wrote: I am planning to do same now and may be we will use the property *server.tomcat.basedir* But this may create another issue ,it will grow the size of the folder. What makes you say that? Is this possible in the coming release tomcat/embedded tomcat give a feature to delete the basedir at the tomcat restart/start and recreate it? This sounds more like a deployment detail and not a Tomcat-launch detail. Since you are using Spring Boot, why not just delete the directory from your own code before Tomcat launches? One more thing is unanswered after deleting the tomcat folder why first page clicked is throwing 500 error with ClassNotFoundException if its not accessed before deleting the tomcat folder? I'm sorry, I can't answer that without spending a lot of time looking at your environmemnt. If you stop deleting the directory while Tomcat is running and it stops returning 500 responses, then I think you have solved your problem without discovering the absolute root-cause of the problem. But you are pulling the rug out from underneath a running application and expecting it to work without failing. I think that's not a realistic expectation. Tomcat relies on its local environment being stable. Dont' destabilize it. If you absolutely need Tomcat to not-fail under thes conditions, we'd be happy to have you research it and provide a patch or pull-request. -chris On Fri, Mar 22, 2024 at 7:01 PM Christopher Schultz < ch...@christopherschultz.net> wrote: Subodh, On 3/22/24 01:36, Subodh Joshi wrote: Hi Chris Thanks for your response. So i added below properties in application.properties file spring.mvc.cache-control.cache-allowed=false and then Deleted the /tmp/tomcat directory . So now when i restart the server A.jsp only fail with 500 error (ClassNotFoundException) as this is first page which i was trying to load, rest JSP pages working fine without any issue . Why i am doing this exercise? In our some of the deployed linux environment many clients are complaining about this issue , We tried to monitor who actually deleting these /tmp/tomcat folder but still we are not able to figure it out and we are not able to reproduce it . So i have to do reproduce it manually deleting the /tmp/tomcat directory. What if you don't use /tmp as your work directory location? /tmp is supposed to be for actually temporary files. These files could live for decades if you never changed your source .jsp files or re-deployed your application. -chris On Thu, Mar 21, 2024 at 7:24 PM Christopher Schultz < ch...@christopherschultz.net> wrote: Subudh, On 3/21/24 07:32, Subodh Joshi wrote: Expert, Recently i came across a issue and i was getting no clue what was going on wrong with the Application. So here is the issue , we were getting following issue in our web application(Springboot+Embedded Tomcat) which is deployed into Linux machine java.lang.ClassNotFoundException: org.apache.jsp.WEB_002dINF.jsp.ImportTab_jsp at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:129) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:58) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:151) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:189) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328) at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:108) at org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231) at
Re: Tomcat Internal Architect for JSP compilation?
Thanks Chris & others for your input, I am planning to do same now and may be we will use the property *server.tomcat.basedir* But this may create another issue ,it will grow the size of the folder . Is this possible in the coming release tomcat/embedded tomcat give a feature to delete the basedir at the tomcat restart/start and recreate it? One more thing is unanswered after deleting the tomcat folder why first page clicked is throwing 500 error with ClassNotFoundException if its not accessed before deleting the tomcat folder? On Fri, Mar 22, 2024 at 7:01 PM Christopher Schultz < ch...@christopherschultz.net> wrote: > Subodh, > > On 3/22/24 01:36, Subodh Joshi wrote: > > Hi Chris > > > > Thanks for your response. > > > > So i added below properties in application.properties file > > > >> spring.mvc.cache-control.cache-allowed=false > >> > >> and then Deleted the /tmp/tomcat directory . So now when i restart the > > server A.jsp only fail with 500 error (ClassNotFoundException) as this is > > first page which i was trying to load, rest JSP pages working fine > without > > any issue . > > > > Why i am doing this exercise? > > In our some of the deployed linux environment many clients are > complaining > > about this issue , We tried to monitor who actually deleting these > > /tmp/tomcat folder but still we are not able to figure it out and we are > > not able to reproduce it . So i have to do reproduce it manually deleting > > the /tmp/tomcat directory. > > What if you don't use /tmp as your work directory location? /tmp is > supposed to be for actually temporary files. These files could live for > decades if you never changed your source .jsp files or re-deployed your > application. > > -chris > > > On Thu, Mar 21, 2024 at 7:24 PM Christopher Schultz < > > ch...@christopherschultz.net> wrote: > > > >> Subudh, > >> > >> On 3/21/24 07:32, Subodh Joshi wrote: > >>>Expert, > >>> > >>> Recently i came across a issue and i was getting no clue what was going > >> on > >>> wrong with the Application. > >>> > >>> So here is the issue , we were getting following issue in our web > >>> application(Springboot+Embedded Tomcat) which is deployed into Linux > >> machine > >>> > >>> java.lang.ClassNotFoundException: > org.apache.jsp.WEB_002dINF.jsp.ImportTab_jsp > at > java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) > at > > org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:129) > at > org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:58) > at > > >> > org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:151) > at > > >> > org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:189) > at > > >> > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410) > at > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380) > at > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328) > at > >> jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) > at > > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) > at > > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > at > org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) > at > > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) > at > > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > at > > >> > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110) > at > > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) > at > > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > at > > >> > org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:108) > at > > >> > org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231) > at > > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:365) > at > > >> > org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100) > at > > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > at > > >> >
Re: Tomcat Internal Architect for JSP compilation?
Subodh, On 3/22/24 01:36, Subodh Joshi wrote: Hi Chris Thanks for your response. So i added below properties in application.properties file spring.mvc.cache-control.cache-allowed=false and then Deleted the /tmp/tomcat directory . So now when i restart the server A.jsp only fail with 500 error (ClassNotFoundException) as this is first page which i was trying to load, rest JSP pages working fine without any issue . Why i am doing this exercise? In our some of the deployed linux environment many clients are complaining about this issue , We tried to monitor who actually deleting these /tmp/tomcat folder but still we are not able to figure it out and we are not able to reproduce it . So i have to do reproduce it manually deleting the /tmp/tomcat directory. What if you don't use /tmp as your work directory location? /tmp is supposed to be for actually temporary files. These files could live for decades if you never changed your source .jsp files or re-deployed your application. -chris On Thu, Mar 21, 2024 at 7:24 PM Christopher Schultz < ch...@christopherschultz.net> wrote: Subudh, On 3/21/24 07:32, Subodh Joshi wrote: Expert, Recently i came across a issue and i was getting no clue what was going on wrong with the Application. So here is the issue , we were getting following issue in our web application(Springboot+Embedded Tomcat) which is deployed into Linux machine java.lang.ClassNotFoundException: org.apache.jsp.WEB_002dINF.jsp.ImportTab_jsp at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:129) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:58) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:151) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:189) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328) at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:108) at org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:365) at org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:179) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at
RE: Tomcat Internal Architect for JSP compilation?
Linux has "auditd" tool to log file system changes: https://www.redhat.com/sysadmin/configure-linux-auditing-auditd -Harri -Original Message- From: Subodh Joshi Sent: perjantai 22. maaliskuuta 2024 7.36 To: Tomcat Users List Subject: Re: Tomcat Internal Architect for JSP compilation? [Et saa yleensä sähköpostia subodhcjosh...@gmail.com. Lisätietoja siitä, miksi tämä on tärkeää, on osoitteessa https://aka.ms/LearnAboutSenderIdentification ] Hi Chris Thanks for your response. So i added below properties in application.properties file > spring.mvc.cache-control.cache-allowed=false > > and then Deleted the /tmp/tomcat directory . So now when i restart the server A.jsp only fail with 500 error (ClassNotFoundException) as this is first page which i was trying to load, rest JSP pages working fine without any issue . Why i am doing this exercise? In our some of the deployed linux environment many clients are complaining about this issue , We tried to monitor who actually deleting these /tmp/tomcat folder but still we are not able to figure it out and we are not able to reproduce it . So i have to do reproduce it manually deleting the /tmp/tomcat directory. thanks & regards On Thu, Mar 21, 2024 at 7:24 PM Christopher Schultz < ch...@christopherschultz.net> wrote: > Subudh, > > On 3/21/24 07:32, Subodh Joshi wrote: > > Expert, > > > > Recently i came across a issue and i was getting no clue what was > > going > on > > wrong with the Application. > > > > So here is the issue , we were getting following issue in our web > > application(Springboot+Embedded Tomcat) which is deployed into Linux > machine > > > > java.lang.ClassNotFoundException: > >> org.apache.jsp.WEB_002dINF.jsp.ImportTab_jsp > >> at > >> java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) > >> at > >> org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:129) > >> at > >> org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:58) > >> at > >> > org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultIns > tanceManager.java:151) > >> at > >> > org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapp > er.java:189) > >> at > >> > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper. > java:410) > >> at > >> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380) > >> at > >> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328) > >> at > jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli > cationFilterChain.java:205) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi > lterChain.java:149) > >> at > >> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli > cationFilterChain.java:174) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi > lterChain.java:149) > >> at > >> > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRe > questFilter.java:110) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appli > cationFilterChain.java:174) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFi > lterChain.java:149) > >> at > >> > org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFi > lter(CompositeFilter.java:108) > >> at > >> > org.springframework.security.web.FilterChainProxy.lambda$doFilterInter > nal$3(FilterChainProxy.java:231) > >> at > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.d > oFilter(FilterChainProxy.java:365) > >> at > >> > org.springframework.security.web.access.intercept.AuthorizationFilter. > doFilter(AuthorizationFilter.java:100) > >> at > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.d > oFilter(FilterChainProxy.java:374) > >> at > >> > org.springframework.security.web.access.ExceptionTranslati
Re: Tomcat Internal Architect for JSP compilation?
One possible workaround is to precompile the JSP's at build time. https://tomcat.apache.org/tomcat-9.0-doc/jasper-howto.html#Web_Application_Compilation -Tim On Fri, Mar 22, 2024 at 1:37 AM Subodh Joshi wrote: > > Why i am doing this exercise? > In our some of the deployed linux environment many clients are complaining > about this issue , We tried to monitor who actually deleting these > /tmp/tomcat folder but still we are not able to figure it out and we are > not able to reproduce it . So i have to do reproduce it manually deleting > the /tmp/tomcat directory. > >
Re: Tomcat Internal Architect for JSP compilation?
Hi Chris Thanks for your response. So i added below properties in application.properties file > spring.mvc.cache-control.cache-allowed=false > > and then Deleted the /tmp/tomcat directory . So now when i restart the server A.jsp only fail with 500 error (ClassNotFoundException) as this is first page which i was trying to load, rest JSP pages working fine without any issue . Why i am doing this exercise? In our some of the deployed linux environment many clients are complaining about this issue , We tried to monitor who actually deleting these /tmp/tomcat folder but still we are not able to figure it out and we are not able to reproduce it . So i have to do reproduce it manually deleting the /tmp/tomcat directory. thanks & regards On Thu, Mar 21, 2024 at 7:24 PM Christopher Schultz < ch...@christopherschultz.net> wrote: > Subudh, > > On 3/21/24 07:32, Subodh Joshi wrote: > > Expert, > > > > Recently i came across a issue and i was getting no clue what was going > on > > wrong with the Application. > > > > So here is the issue , we were getting following issue in our web > > application(Springboot+Embedded Tomcat) which is deployed into Linux > machine > > > > java.lang.ClassNotFoundException: > >> org.apache.jsp.WEB_002dINF.jsp.ImportTab_jsp > >> at > >> java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) > >> at > >> org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:129) > >> at > >> org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:58) > >> at > >> > org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:151) > >> at > >> > org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:189) > >> at > >> > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410) > >> at > >> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380) > >> at > >> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328) > >> at > jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > >> at > >> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > >> at > >> > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) > >> at > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > >> at > >> > org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:108) > >> at > >> > org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231) > >> at > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:365) > >> at > >> > org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100) > >> at > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >> at > >> > org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126) > >> at > >> > org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120) > >> at > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >> at > >> > org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100) > >> at > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >> at > >> > org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:179) > >> at > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >> at > >> > org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) > >> at > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >> at > >> >
Re: Tomcat Internal Architect for JSP compilation?
Subudh, On 3/21/24 07:32, Subodh Joshi wrote: Expert, Recently i came across a issue and i was getting no clue what was going on wrong with the Application. So here is the issue , we were getting following issue in our web application(Springboot+Embedded Tomcat) which is deployed into Linux machine java.lang.ClassNotFoundException: org.apache.jsp.WEB_002dINF.jsp.ImportTab_jsp at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:129) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:58) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:151) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:189) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328) at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:108) at org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:365) at org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:179) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at com.comptel.catalog.support.filter.OperationClientRestFilter.doFilter(OperationClientRestFilter.java:86) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) at com.comptel.catalog.support.filter.JwtSecurityChainFilter.doFilter(JwtSecurityChainFilter.java:100) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) but how to reproduce this issue we were not able to get any clue. But Recently i got to know how to reproduce this issue 1- Start the web-application. 2- Tomcat will create a directory under /tmp/tomcat.*/.././.. 3- Now access web-application through browser. 4- But dont access all JSP pages. 5- Suppose application have A,B,C,D.jsp pages . 6- User accesses A,B.jsp only 7- Now user or any cron job deleted /tmp/tomcat directory Don't do that. 8- Now user click on C.jsp it is throwing above given exception. 9- Now click on D.jsp it will work fine as tomcat will create /tmp/tomcat . directory again. 10. But C.jsp which was failed with 500 error will never come upto the time tomcat will not start. Can someone please explain how tomcat works here and why it throws an exception and wont allow that jsp page
Tomcat Internal Architect for JSP compilation?
Expert, Recently i came across a issue and i was getting no clue what was going on wrong with the Application. So here is the issue , we were getting following issue in our web application(Springboot+Embedded Tomcat) which is deployed into Linux machine java.lang.ClassNotFoundException: > org.apache.jsp.WEB_002dINF.jsp.ImportTab_jsp > at > java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) > at > org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:129) > at > org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:58) > at > org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:151) > at > org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:189) > at > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410) > at > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380) > at > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328) > at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > at > org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > at > org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:108) > at > org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231) > at > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:365) > at > org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100) > at > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > at > org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126) > at > org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120) > at > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > at > org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100) > at > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > at > org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:179) > at > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > at > org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) > at > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > at > com.comptel.catalog.support.filter.OperationClientRestFilter.doFilter(OperationClientRestFilter.java:86) > at > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > at > com.comptel.catalog.support.filter.JwtSecurityChainFilter.doFilter(JwtSecurityChainFilter.java:100) > at > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > but how to reproduce this issue we were not able to get any clue. But Recently i got to know how to reproduce this issue 1- Start the web-application. 2- Tomcat will create a directory under /tmp/tomcat.*/.././.. 3- Now access web-application through browser. 4- But dont access all JSP pages. 5- Suppose application have A,B,C,D.jsp pages . 6- User accesses A,B.jsp only 7- Now user or any cron job deleted /tmp/tomcat directory 8- Now user click on C.jsp it is throwing above given exception. 9- Now click on D.jsp it will work fine as tomcat will create /tmp/tomcat . directory again. 10. But C.jsp which was failed with 500 error will never come upto the time tomcat will not start. Can someone please explain how tomcat works here and why it throws an
