update to 2023 targets and JavaSE-17

[anb0s]

Issue:

#267

Proposed changes

{text}

Reviewers

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[Bananeweizen]

Please be aware that the full matrix might not work because old target platforms may not run on newer java versions (for example due to the changes of javax.xml in Java 9).

[anb0s]

thanks, it works for now, only the update site build is failing, because of missing dependecy org.eclipse.equinox.ds ...

[Bananeweizen]

I haven't used the p2 ant scripts for building update sites, so I don't have any knowledge in that area. If you just need any tycho.ds version to satisfy your build script, then you can use the "Repository Explorer" view from Oomph, hit the button "...by provided capabilities" and enter the name of the plugin/feature needed. That would show you this for equinox.ds:

So one possible location for your target would be:

<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
<unit id="org.eclipse.equinox.ds" version="0.0.0"/>
<repository location="http://download.eclipse.org/releases/2020-12"/>
</location>

However, even with that dependency I cannot get that Ant script running.