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How to enable autoscroll for a StyledText Component
StyledText styledText = new StyledText(parent, SWT.V_SCROLL);

//other relevant code here

styledText.addListener(SWT.SCROLL_LOCK, new Listener() {
            @Override
            public void handleEvent(Event event) {
                // TODO Auto-generated method stub
                event.doit=false;// i tried true also doesn't work
            }
        }) ;