Eclipse:

Migrate from Subversive to Subclipse

1. Team > Disconnect on all projects
2. Uninstall Subversive
3. Install Subclipse
4. Team > Share all projects

or

1. Uninstall Subversive
2. Install Subclipse
3. Exit from Eclipse
4. find .metadata/.plugins/org.eclipse.core.resources/.projects -name 'properties.index' -delete

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Subclipse/Subversive Native JavaHL

Failed to load JavaHL Library.
These are the errors that were encountered:
no libsvnjavahl-1 in java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
no svnjavahl-1 in java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
no svnjavahl in java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
java.library.path = /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib

In Debian-based:

apt install libsvn-java

adding to eclipse.ini, in -vmargs options:

-Djava.library.path=/usr/lib/x86_64-linux-gnu/jni/

PS: need to double-check!