Hi Vidyadhar, Some points to note here:
1) Setting those parameters in Web.xml file (CATALINA_HOME/conf) doesn't guarantee that it won't happen. Tomcat 8.0.43 onwards have got this relaxed out by using a more efficient error handling code. But you will have this error if the code is truly hitting near the limit. 2) The issue occurs with Tomcat 8.0.39 onwards. Try to see if the issue happens for tomcat 8.0.29. I can vouch for 8.0.29 where it didn't happen. 3) Did you try and follow my suggestion on point 3 (last email) about checking the method sizes of the precompiled JSPs using apache commons BCEL (bcel-5.4.1.jar) library? If yes, what did you find? You also haven't mentioned what sort of JSPs you have that yields into such error. Are you having legacy scriptlets which are quite heavy and uses lots of custom tags? Try to use the following too: <init-param> <param-name>trimSpaces</param-name> <param-value>true</param-value> </init-param> The above is having some inconsistency reported in a different email thread, but I assume it should be fine in most of the cases. Try to see if you can provide some results on the above points. KR, On 16 May 2017 at 15:29, Vidyadhar <techienote....@gmail.com> wrote: > Hello KR, > > On Fri, May 12, 2017 at 12:37 PM, Mohammed Manna <manme...@gmail.com> > wrote: > > > I have two things which you might want to try out: > > > > 1) You will lose your JSP debugging capability - but if that's not your > > concern, then in your CATALINA_HOME\conf folder append this for > > "JspServlet" > > > > <init-param> > > <param-name>mappedfile</param-name> > > <param-value>false</param-value> > > </init-param> > > <init-param> > > <param-name>suppressSmap</param-name> > > <param-value>true</param-value> > > </init-param> > > > We already tried this option. We included these lines in tomcat's web.xml > file and restarted the services, but still it is giving the same error. > > > > > This will stop generating JSR45 debug info and Symbol Maps for JSP > > pages ( I think I have said technical things right here, otherwise please > > correct me!). > > > > 2) I sincerely recommend moving scriptlet code out of your JSP and remove > > all unwanted/commented code, newline/carriages from your JSP. Even with > the > > config above, this might fail since the code is genuinely too large for > > __jspService(). > > > > 3) If possible, try to use Ant and precompile your JSP and iterate > through > > the .class files to check which method size is larger or close to 90% or > > the 64k footprint. You can write a short program by leveraging java.io > and > > Apache commons BCEL library. Ant has a strange behaviour which doesn't > > throw any exceptions if the Jsp method size exceeds the limit. But the > > compilation occurs anyway. So you can go through those compiled files > using > > your custom tool and print the size of the methods. > > > > > > I hope this helps you. > > > > Further to above we tried various tomcat version and as per our > observation we are not seeing this error on 8.0.29 version. Note that the > same error is still there in latest version i.e. 8.5.15. > > > KR, > > > > On 12 May 2017 at 07:58, Vidyadhar <techienote....@gmail.com> wrote: > > > > > Hello Sagar, > > > > > > On Fri, 12 May 2017 at 12:26 PM, sagar kohli <sagarkohl...@gmail.com> > > > wrote: > > > > > > > Try adding following init parameter in <tomcat_home>/conf/web.xml > > > > > > > > <init-param> > > > > <param-name>mappedfile</param-name> > > > > <param-value>false</param-value> > > > > </init-param> > > > > > > > > > We already tried it but no success. > > > > > > > > > > > > > > > On Fri, May 12, 2017 at 10:28 AM, Vidyadhar < > techienote....@gmail.com> > > > > wrote: > > > > > > > > > Hello Team, > > > > > > > > > > Recently we did a upgrade existing tomcat from 7.0.42 to 7.0.76 on > > > > windows > > > > > box. Post the up gradation we are seeing following error in couple > of > > > > JSPs > > > > > > > > > > org.apache.jasper.JasperException: Unable to compile class for > JSP: > > > > > > > > > > An error occurred at line: [231] in the generated java file: > > > [C:\Program > > > > > Files\Apache\Tomcat\work\Catalina\localhost\app\org\ > apache\jsp\jsp\ > > > > > applicationChange\applicationChangeMain_jsp.java] > > > > > The code of method _jspService(HttpServletRequest, > > > HttpServletResponse) > > > > is > > > > > exceeding the 65535 bytes limit > > > > > > > > > > Stacktrace: > > > > > org.apache.jasper.compiler.DefaultErrorHandler.javacError( > > > > > DefaultErrorHandler.java:103) > > > > > org.apache.jasper.compiler.ErrorDispatcher.javacError( > > > > > ErrorDispatcher.java:366) > > > > > > > > > org.apache.jasper.compiler.JDTCompiler.generateClass( > > > JDTCompiler.java:490) > > > > > org.apache.jasper.compiler.Compiler.compile(Compiler.java:379) > > > > > org.apache.jasper.compiler.Compiler.compile(Compiler.java:354) > > > > > org.apache.jasper.compiler.Compiler.compile(Compiler.java:341) > > > > > I have checked the various threads on tomcat support archive and > did > > > try > > > > > following solution which did not work on 7.0.76 as well as on > 7.0.77. > > > > > > > > > > 1. Following changes in conf/web.xml > > > > > <init-param> > > > > > <param-name>mappedfile</param-name> > > > > > <param-value>false</param-value> > > > > > </init-param> > > > > > <init-param> > > > > > <param-name>compiler</param-name> > > > > > <param-value>modern</param-value> > > > > > </init-param> > > > > > 2. Increased the buffer size. > > > > > > > > > > Can some one suggest some ways to resolve this error, without > > > downgrading > > > > > to 7.0.42 > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > Regards, > > > > > Vidyadhar > > > > > > > > > > > > > > > > > > > > > -- > > > > Regards, > > > > sagar kohli > > > > > > > -- > > > Regards, > > > Vidyadhar > > > > > > > > > -- > Regards, > Vidyadhar >
