How to use

XYBoxAnnotation

in

org.jfree.chart.annotations

  g2.draw(box);
addEntity(info, box, rendererIndex, getToolTipText(), getURL());

Paint outlinePaint=Color.WHITE;
XYBoxAnnotation box00 = new XYBoxAnnotation(0, 0, 50, 50,stroke,outlinePaint);
XYBoxAnnotation box01 = new XYBoxAnnotation(0, 50, 50, 75,stroke,outlinePaint);
XYBoxAnnotation box02 = new XYBoxAnnotation(0, 75, 50, 101,stroke,outlinePaint);
XYBoxAnnotation box10 = new XYBoxAnnotation(50, 0, 75, 50,stroke,outlinePaint);
XYBoxAnnotation box11 = new XYBoxAnnotation(50, 50, 75, 75,stroke,outlinePaint);
XYBoxAnnotation box12 = new XYBoxAnnotation(50, 75, 75, 101,stroke,outlinePaint);
XYBoxAnnotation box20 = new XYBoxAnnotation(75, 0, 101, 50,stroke,outlinePaint);
XYBoxAnnotation box21 = new XYBoxAnnotation(75, 50, 101, 75,stroke,outlinePaint);
XYBoxAnnotation box22 = new XYBoxAnnotation(75, 75, 101, 101,stroke,outlinePaint);

  g2.draw(box);
addEntity(info, box, rendererIndex, getToolTipText(), getURL());