问无法启动活动ComponentInfo{示例.}：java.lang.NullPointerException: println需要一条消息

EN

java.lang.NullPointerException: println needs a message 

public class ViewMupuh extends Activity implements OnClickListener {
    private static String position = null;

    private TextView textJudul, textLirik;
    private Button bUpdate;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.detail_mupuh);
        Intent intent = getIntent();
        position = intent.getStringExtra("position");
        Log.d("value of position",position);
        DBHelper db = new DBHelper(this);
        Lirik lirik = db.getLirik(position);
        textJudul = (TextView) findViewById(R.id.judul_details);
        textJudul.setText(lirik.getJudul());
        textLirik = (TextView) findViewById(R.id.lirikdetails);
        textLirik.setText(lirik.getLirik());

        bUpdate = (Button) findViewById(R.id.bupdatedetails);
        bUpdate.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        Intent intent = new Intent(getApplicationContext(), EditLirik.class);
        intent.putExtra("position value", position);
        startActivity(intent);
    }
}