Processing second sketch vertex error

first_sketch.pde

SecondSketch second;

void setup() {
  size(800, 800, P3D);
  colorMode(HSB, 360, 100, 100);
  frameRate(60);
}

void draw() {
  background(0);
  
  PShape p = createShape();
  p.beginShape();
  p.noFill();
  p.strokeWeight(5);
  p.stroke(255, 150);
  for(int i=0; i< 1000; i++) {
    p.vertex(width/2, mouseY+i*20, height/2);
  }
  p.endShape();
  shape(p);
}

void keyPressed() {
  if(key == 's') {
    second = new SecondSketch();
    second.run(100, 100);
  }
}

SecondSketch.pde

class SecondSketch extends PApplet {  
  
  // APPLET --------------------------------
  SecondSketch() {
    super();
  }
  public void run(int x, int y) {
    String[] processingArgs = { "--location=" + x + "," + y, "Second Sketch" };
    PApplet.runSketch(processingArgs, this);
  }
  
  void settings() {
    size(500, 200, P3D);
  }
  
  void setup() {
    colorMode(HSB, 360, 100, 100);
    frameRate(60);
  }
  
  void draw() {
    background(0);
    
    PShape p = createShape();
    p.beginShape();
    p.noFill();
    p.strokeWeight(5);
    p.stroke(255, 150);
    for(int i=0; i< 1000; i++) {
      p.vertex(width/2, mouseY+i*20, height/2);
    }
    p.endShape();
    shape(p);
  }
}