Bug 59595 Clean does not work
I2004041300 Clean and build operations no longer work: I can select all or some projects but nothing happens. I tried several of my existing workspaces. Using auto-build on or of does not help. And to make it worse: the preference to bring back the old Rebuild All... actions has gone. Nothing in .log or console.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/CleanDialog.java
super(window.getShell(), IDEWorkbenchMessages.getString("CleanDialog.title"), null, getQuestion(), QUESTION, new String[]{ 
				IDialogConstants.OK_LABEL, IDialogConstants.CANCEL_LABEL}, 0);
		this.window = window;
		this.selection = selection;
		if (this.selection == null)
			this.selection = new Object[0];
	}
	protected void browsePressed() {
		ILabelProvider labelProvider= new WorkbenchLabelProvider();
		ElementListSelectionDialog dialog= new ElementListSelectionDialog(getShell(), labelProvider);
		dialog.setMultipleSelection(true);
		dialog.setTitle("Project Selection"); 
		dialog.setMessage("Chose projects to clean:"); 
		dialog.setElements(ResourcesPlugin.getWorkspace().getRoot().getProjects());
		dialog.setInitialSelections(new Object[] { selection});
		if (dialog.open() == Window.OK) {
			selection = dialog.getResult();
			if (selection == null)
				selection = new Object[0];
		}
		setProjectName();
		updateEnablement();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.Dialog#buttonPressed(int)
	 */
	protected void buttonPressed(int buttonId) {
		if (buttonId == IDialogConstants.OK_ID) {