Dear Eclipse users,
Whoever faces issues installing Eclipse RPMs on Fedora 31 - this is beyond us (Eclipse packagers) and depends on a number of bigger issues in Fedora land both technical and political.
Until this is fixed, you're strongly recommended to try using Eclipse from Flathub [1]. It should provide you with similar system level integration as the RPMs and is maintained by the very same people who do the Fedora RPMs.
In case of issues don't hesitate to contact me or Mat Booth but ideally open issues at [2] .

[1] https://flathub.org/apps/details/org.eclipse.Java
[2] https://github.com/flathub/org.eclipse.Java

--
Alexander Kurtakov
Red Hat Eclipse Team