[assassinator42]

Java and the .NET Framework had partial trust/capabilities mechanisms decades ago. No one really used them and they were deprecated/removed.

[lenkite]

It was not bad, but without memory/cpu isolates, it was pretty useless. The JSR for isolation got abandoned when Sun went belly up.

[pjmlp]

It was more like no one used them correctly.

[eikenberry]

Wouldn't that mean they were poorly implemented. If no one uses something correctly, seems like that isn't a problem with the people but the thing.

[palata]

I don't think so. Software is maybe the only "engineering" discipline where it is considered okay to use mainstream tools incorrectly and then blame the tools.

[dullcrisp]

Do the “mainstream” tools change every five years in other disciplines?

[pjmlp]

To be fair they only change when chasing trends, consumers don't care how software is written, provided it does the job.

Which goes both ways, it can be a Gtk+ application written in C, or Electron junk, as long as it works, they will use it.

[pjmlp]

Partially yes, hence why they got removed, the official messaging being OS security primitives are a better way.