Bug 189847 [DND] Combo/Text on Linux does not fire Drop event.
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/dnd/DNDExample.java
default:
					throw new SWTError(SWT.ERROR_NOT_IMPLEMENTED);
			}
		}
		public void dropAccept(DropTargetEvent event) {
			dropConsole.append(">>dropAccept\n");
			printEvent(event);
		}
	});
}
private void createFeedbackTypes(Group parent) {
	parent.setLayout(new RowLayout(SWT.VERTICAL));
	Button b = new Button(parent, SWT.CHECK);
	b.setText("FEEDBACK_SELECT");
	b.addSelectionListener(new SelectionAdapter() {
		public void widgetSelected(SelectionEvent e) {
			Button b = (Button)e.widget;
			if (b.getSelection()) {
				dropFeedback |= DND.FEEDBACK_SELECT;			
			} else {
				dropFeedback &= ~DND.FEEDBACK_SELECT;
			}
		}
	});
	
	b = new Button(parent, SWT.CHECK);
	b.setText("FEEDBACK_SCROLL");
	b.addSelectionListener(new SelectionAdapter() {
		public void widgetSelected(SelectionEvent e) {
			Button b = (Button)e.widget;