We have migrated from jetty 8 to jetty 9 and we have encountered multiple error on jsp pages that are working in jetty 8 like JSP Error : contains invalid expression,failed to parse exception. Also some of our other pages are not found because of doubling of slash on the url path. They are perfectly working on Jetty 8 but not on Jetty 9. Are there any list that will provide guidelines what to check when migrating from Jetty 8 to Jetty 9 version? Thanks.