Missing capability and requirement for org.eclipse.equinox.internal.p2.repository.Transport

[trancexpress]

See: eclipse-pde/eclipse.pde#2130

Launching PDE test org.eclipse.pde.genericeditor.extension.tests.UpdateUnitVersionsCommandTests from Eclipse results in the following error:

!ENTRY org.eclipse.pde.genericeditor.extension 2 0 2025-11-14 12:34:50.660
!MESSAGE Cannot invoke "org.eclipse.equinox.internal.p2.repository.Transport.download(java.net.URI, java.io.OutputStream, org.eclipse.core.runtime.IProgressMonitor)" because the return value of "org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.getTransport()" is null
!STACK 0
java.lang.NullPointerException: Cannot invoke "org.eclipse.equinox.internal.p2.repository.Transport.download(java.net.URI, java.io.OutputStream, org.eclipse.core.runtime.IProgressMonitor)" because the return value of "org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.getTransport()" is null
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.handleRemoteIndexFile(AbstractRepositoryManager.java:797)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadIndexFile(AbstractRepositoryManager.java:791)
	at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:727)
	at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:107)
	at org.eclipse.equinox.p2.repository.metadata.IMetadataRepositoryManager.loadRepository(IMetadataRepositoryManager.java:101)
	at org.eclipse.pde.internal.genericeditor.target.extension.p2.P2Fetcher.fetchAvailableUnits(P2Fetcher.java:63)
	at org.eclipse.pde.internal.genericeditor.target.extension.model.RepositoryCache.lambda$11(RepositoryCache.java:106)
	at org.eclipse.core.runtime.jobs.Job$2.run(Job.java:187)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

I was advised to add a capability and a requirement to p2 bundles.

Potentially this a problem revealed by the changes from: eclipse-pde/eclipse.pde#1852