Will RSP-UI require a J2EE-certified server or a Servlet Engine to run?
No. An initial implementation will use the Equinox ServletBridge which runs in a servlet container as a WAR-style application. This provides for maximum compatibility, as this approach allows adding Eclipse-/OSGi components to existing web applications, without having to migrate the entire web application to Eclipse/OSGi. However, RSP-UI aims to be “server-agnostic”; it should be able to run in any OSGi-compliant environment. Given that an OSGi-“server” can itself be composed with bundles, and OSGi class-loading isolation features ensure that different implementations of services can co-exist in the same OSGi environment, as a general rule, RSP-UI does not depend on particular OSGi container features beyond those specified by applicable OSGi release levels.