I don't think it's possible to combine jetty8 with libtomcat8-java. Tomcat 8 uses the Servlet API 3.1 and JSP 2.3, but Jetty 8 uses the Servlet API 3.0 and JSP 2.2. I haven't tried but it's likely to break at runtime if the JSP compiler relies on Servlet 3.1 features.
We should instead package jetty9 and remove jetty8, but it's too late for Jessie. Emmanuel Bourg
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