It is possible that after an upgrade you may encounter this error on some of the more complex pages and root cause provided by tomcat console is :<\/p>\n\n\n\n
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Unable to compile class for JSP\n The code of method _jspService(HttpServletRequest, HttpServletResponse) is exceeding the 65535 bytes limit<\/code><\/pre>\n\n\n\nTo solve the issue you need to locate the file [Tomcat_Home]\/conf\/web.xml and search the file for ‘JspServlet’. This should return an xml node of containing some values. You will need to add an additional the same as the below.<\/p>\n\n\n\n
<init-param><\/strong> \n <param-name><\/strong>mappedfile<\/param-name><\/strong> \n <param-value><\/strong>false<\/param-value><\/strong> \n<\/init-param><\/strong><\/code><\/pre>\n\n\n\nThe resulting block of the web.xml file, once you have inserted the above, should look like the code below.<\/p>\n\n\n\n
<servlet><\/strong> \n <servlet-name><\/strong>jsp<\/servlet-name><\/strong>\n <servlet-class><\/strong>\n org.apache.jasper.servlet.JspServlet\n <\/servlet-class><\/strong>\n <init-param><\/strong>\n <param-name><\/strong>fork<\/param-name><\/strong>\n <param-value><\/strong>false<\/param-value><\/strong>\n <\/init-param><\/strong>\n <init-param><\/strong>\n <param-name><\/strong>xpoweredBy<\/param-name><\/strong>\n <param-value><\/strong>false<\/param-value><\/strong>\n <\/init-param><\/strong>\n <init-param><\/strong>\n <param-name><\/strong>mappedfile<\/param-name><\/strong>\n <param-value><\/strong>false<\/param-value><\/strong>\n <\/init-param><\/strong>\n <load-on-startup><\/strong>3<\/load-on-startup><\/strong>\n<\/servlet><\/strong><\/code><\/pre>\n\n\n\nSave the file and restart the Tomcat service.<\/p>\n\n\n\n
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