This is going to sound like a strange fix but I've had it work on 2 systems:
download: libequinox-osgi-java_3.8.1-10_all.deb https://packages.ubuntu.com/artful/all/libequinox-osgi-java/download
Install it with dpkg or similar) Run netbeans. It should load. Run sudo apt upgrade to get the bionic version back. Run netbeans. For me it still works.
In other words something about running with 3.8.1-10 fixes whatever the issue is.
This is going to sound like a strange fix but I've had it work on 2 systems:
download: libequinox- osgi-java_ 3.8.1-10_ all.deb /packages. ubuntu. com/artful/ all/libequinox- osgi-java/ download
https:/
Install it with dpkg or similar)
Run netbeans. It should load.
Run sudo apt upgrade to get the bionic version back.
Run netbeans. For me it still works.
In other words something about running with 3.8.1-10 fixes whatever the issue is.