Program: 98678
Project: 98678
Buggy source:
public void paintTransform(Transform t,boolean highlight,Graphics2D g){
  Rectangle unit=new Rectangle(getSize());
  Shape rect=t.getTransform().createTransformedShape(unit);
  g.setPaint(Color.BLACK);
  if (highlight) {
    g.setStroke(new BasicStroke(2f,BasicStroke.CAP_SQUARE,BasicStroke.JOIN_MITER,10.0f,new float[]{10f,10f},0f));
  }
 else {
    g.setStroke(new BasicStroke(2f));
  }
  g.draw(rect);
  if (highlight) {
    if (t.isMatrix()) {
      g.setPaint(new Color(Color.GREEN.getRed(),Color.GREEN.getGreen(),Color.GREEN.getBlue(),16));
    }
 else {
      g.setPaint(new Color(Color.BLUE.getRed(),Color.BLUE.getGreen(),Color.BLUE.getBlue(),16));
    }
  }
 else {
    g.setPaint(new Color(Color.GRAY.getRed(),Color.GRAY.getGreen(),Color.GRAY.getBlue(),8));
  }
  g.fill(rect);
  if (!t.isMatrix()) {
    g.setStroke(new BasicStroke(2f));
    g.setPaint(Color.BLACK);
    int[] cornerX=new int[]{0,0,getWidth(),getWidth()};
    int[] cornerY=new int[]{0,getHeight(),getHeight(),0};
    for (int i=0; i < 4; i++) {
      Point center=new Point();
      t.getTransform().transform(new Point(cornerX[i],cornerY[i]),center);
      Rectangle corner=new Rectangle(center.x - 4,center.y - 4,8,8);
      g.fill(corner);
    }
    int rotateX=getWidth() / 2, rotateY=0;
    Point center=new Point();
    t.getTransform().transform(new Point(rotateX,rotateY),center);
    Arc2D handle=new Arc2D.Double(center.getX() - 6d,center.getY() - 6d,12d,12d,0d,360d,Arc2D.OPEN);
    g.draw(handle);
  }
  Graphics2D gr=(Graphics2D)g.create();
  if (highlight) {
    gr.setPaint(Color.BLACK);
  }
 else {
    gr.setPaint(new Color(Color.BLACK.getRed(),Color.BLACK.getGreen(),Color.BLACK.getBlue(),128));
  }
  gr.setFont(new Font("String_Node_Str",Font.BOLD,25));
  Point text=new Point();
  t.getTransform().transform(new Point(0,0),text);
  AffineTransform rotation=new AffineTransform();
  if (t.isMatrix()) {
    rotation=t.getTransform();
    rotation.scale(1 / t.getScaleX(),1 / t.getScaleY());
    rotation.translate(-t.getTranslateX(),-t.getTranslateY());
  }
 else {
    rotation.rotate(t.r,text.x,text.y);
  }
  gr.setTransform(rotation);
  gr.drawString(String.format("String_Node_Str",t.getId(),(highlight && rotate != null) ? String.format("String_Node_Str",(int)Math.toDegrees(t.r)) : "String_Node_Str"),text.x + 5,text.y + 25);
  gr.dispose();
  g.dispose();
}

Fixed version (ground truth):
public void paintTransform(Transform t,boolean highlight,Graphics2D g){
  Rectangle unit=new Rectangle(getSize());
  Shape rect=t.getTransform().createTransformedShape(unit);
  g.setPaint(Color.BLACK);
  if (highlight) {
    g.setStroke(new BasicStroke(2f,BasicStroke.CAP_SQUARE,BasicStroke.JOIN_MITER,10.0f,new float[]{10f,10f},0f));
  }
 else {
    g.setStroke(new BasicStroke(2f));
  }
  g.draw(rect);
  if (highlight) {
    if (t.isMatrix()) {
      g.setPaint(new Color(Color.GREEN.getRed(),Color.GREEN.getGreen(),Color.GREEN.getBlue(),16));
    }
 else {
      g.setPaint(new Color(Color.BLUE.getRed(),Color.BLUE.getGreen(),Color.BLUE.getBlue(),16));
    }
  }
 else {
    g.setPaint(new Color(Color.GRAY.getRed(),Color.GRAY.getGreen(),Color.GRAY.getBlue(),8));
  }
  g.fill(rect);
  if (!t.isMatrix()) {
    g.setStroke(new BasicStroke(2f));
    g.setPaint(Color.BLACK);
    int[] cornerX=new int[]{0,0,getWidth(),getWidth()};
    int[] cornerY=new int[]{0,getHeight(),getHeight(),0};
    for (int i=0; i < 4; i++) {
      Point center=new Point();
      t.getTransform().transform(new Point(cornerX[i],cornerY[i]),center);
      Rectangle corner=new Rectangle(center.x - 4,center.y - 4,8,8);
      g.fill(corner);
    }
    int rotateX=getWidth() / 2, rotateY=0;
    Point center=new Point();
    t.getTransform().transform(new Point(rotateX,rotateY),center);
    Arc2D handle=new Arc2D.Double(center.getX() - 6d,center.getY() - 6d,12d,12d,0d,360d,Arc2D.OPEN);
    g.draw(handle);
  }
  Graphics2D gr=(Graphics2D)g.create();
  if (highlight) {
    gr.setPaint(Color.BLACK);
  }
 else {
    gr.setPaint(new Color(Color.BLACK.getRed(),Color.BLACK.getGreen(),Color.BLACK.getBlue(),128));
  }
  gr.setFont(new Font("String_Node_Str",Font.BOLD,25));
  Point text=new Point();
  t.getTransform().transform(new Point(0,0),text);
  AffineTransform rotation=new AffineTransform();
  if (t.isMatrix()) {
    rotation=t.getTransform();
    rotation.scale(1 / t.getScaleX(),1 / t.getScaleY());
    rotation.translate(-t.getTranslateX(),-t.getTranslateY());
  }
 else {
    rotation.translate(text.x,text.y);
    rotation.shear(t.shx,t.shy);
    rotation.rotate(t.r);
    rotation.translate(-text.x,-text.y);
  }
  gr.setTransform(rotation);
  gr.drawString(String.format("String_Node_Str",t.getId(),(highlight && rotate != null) ? String.format("String_Node_Str",(int)Math.toDegrees(t.r)) : "String_Node_Str"),text.x + 5,text.y + 25);
  gr.dispose();
  g.dispose();
}