Update: It will also need few packages which are not built currently. equinox-p2-> * libequinox-p2-ui-java. * libequinox-p2-ui-sdk-java. * libequinox-p2-ui-sdk-scheduler-java
eclipse-platform-ui-> * libeclipse-ui-navigator-resources-java. * libeclipse-ui-themes-java. This has been discussed at https://lists.debian.org/debian-java/2020/07/msg00004.html -- Regards Sudip