[Risolto] [Errore] <class> error is public

Buonasera,

Purtroppo non riesco a capire questo errore ,sembra essere tutto in ordine

screenshot

Si tratta di una classe astratta con alcuni metodi non astratti. I metodi astratti sono stati implementati nella classe di test "NewClass"
Il file della classe Tile1 si chiama Tile1.java.

Edit:
non ho nessuna classe Error

import static explorer.Game.TILE_HEIGHT;
import static explorer.Game.TILE_WIDTH;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;


public abstract  class Tile1{
 
/* attributes */
    private int posX;
    private int posY;
    private int width;
    private int height;
    public  Rectangle bounds;
    private BufferedImage    tileSetBuffered;
    private BufferedImage [] tileListImages;
 

    public Tile1( int posX, int posY, int width, int height,File tileSetFile)
        {
                this.posX   = posX;
                this.posY   = posY;
                this.width  = width;
                this.height = height;
                
                bounds = new Rectangle(posX, posY, width, height);
                bounds.x = posX;
                bounds.y = posY;
                
                /* Gets Buffered Image of the TILESET File */
                getBufferedImage(tileSetFile);
               /* Gets sub-Images from tileSetBuffered */
                getSubImages();
                
        }
        
        private void getBufferedImage( File file){
                try {      
                        tileSetBuffered  = ImageIO.read(file);
                    }catch (IOException ex){
                    System.out.println("Game:getSubImages: " + ex);
                }
        }
        
        private void getSubImages (){
            int col;
            int row;
            int index = 0;

            col = tileSetBuffered.getWidth()/TILE_WIDTH;
            row = tileSetBuffered.getHeight()/TILE_HEIGHT;
            
           tileListImages = new BufferedImage[col*row];
            index = 0;
            for(int i = 0; i < row; i++){
                int y= i*TILE_HEIGHT;
                
                for(int j = 0; j < col; j++){
                    int x = j*TILE_WIDTH;
                    tileListImages[index++] = tileSetBuffered.getSubimage(x, y, TILE_WIDTH, TILE_HEIGHT);
                }
            }
        }
        
        public abstract void update();
        public abstract void updateBounds();
        public abstract void updatePs();

}

Class NewClass

import java.io.File;

public class NewClass extends Tile1{

    public NewClass(int posX, int posY, int width, int height, File tileSetFile) {
        super(posX, posY, width, height, tileSetFile);
    }

    @Override
    public void update() {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBounds() {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updatePs() {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
    
}