Java SE (Java Platform, Standard Edition)

I'm building analyzer ....this section is running in a thread that listen and update data to the front jEditorPane. It updates data by appending to to existing data set, however it would not set the last data display first. Instead, I'm always seeing the first data set displays first. I would like to update the scroll position somehow that it will always show the latest data added to jEditorPane first. Could someone please tell me how?

Thanks.