Trigger evaluation of PropertyTester

Question

The code from two years back had to be upgraded to E4, and now a bunch of stuff does not work anymore. One of these is the IEvaluationService if used like this:

Answer 1

I'm going to share my workaround, which is not good, and does not work in alles cases. And only really works because in my use case I have a IWorkbenchPart with an ISelectionProvider... but maybe it will help the next person:

IWorkbenchPart activePart = // get active view or editor
ISelectionProvider selectionProvider = activePart.getSite().getSelectionProvider();
ISelection selection = selectionProvider.getSelection();
selectionProvider.setSelection(new StructuredSelection());
selectionProvider.setSelection(selection);

This code just resets the selection, which normally triggers the PropertyTester. I don't think it'll work if nothing was selected.