java - Scrollbars in JScrollPane don't refresh -


i have jpanel in jscrollpane. when jpanel changes (in case, draw image inside), scroll bars not refreshing accordingly. need move them sligthly or resize whole frame , fine. how force jscrollpane show correct scroll bars (ie. after loading picture)?

you should include these methods when want modify jscrollpane according changes:

jscrollpane.setviewportview(this);   jscrollpane.revalidate();   jscrollpane.repaint();

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