Upgrading Eclipse

Upgrading Eclipse installation to work with Elphel projects, including VDT plugin that launches another Eclipse application (e.g. from Neon to Oxygen)

Always backup your workspace files tree or use copies, such as workspace-neon and workspace-oxygen (start with a copy of workspace-neon).

Same for secondary workspaces (runtime-EclipseApplication-neon, runtime-EclipseApplication-oxygen). You may find the path to the secondary workspace for VDT plugin here:

Run -> Run Configurations -> Eclipse Application -> Eclipse Application -> Main (tab) -> Location

That may look like: ${workspace_loc}/../runtime-EclipseApplication-oxygen

First open current (working) version of Eclipse (here: Neon), select

File -> Export -> Install -> Installed Software Items to File
Select: All
Select: Include entries not found in repositories
select location where to save the export file

Run new Eclipse version, select new empty workspace, not the working one with your projects

File -> Import -> Install -> Install Software Items from File -> Next
Locate exported file
select: Install latest version of selected file
Finish

Then close Eclipse and open it with workspace-oxygen (copied from workspace-neon). Eclipse will worn you that it will update the workspace and there is no way back. Agree, as it is a copy of the workspace-neon, not workspace-neon itself.

You projects should open correctly. Now change location of the secondary workspace (from ...-neon to ...-oxygen) in:

Run -> Run Configurations -> Eclipse Application -> Eclipse Application -> Main (tab) -> Location

Try running that secondary Eclipse (it will take longer first time before it will ask about updating configuration to the new Eclipse version)