hi folks,
i am trying to get into processing, buts it gets tricky sometime.
Does someone maybe know what is wrong with the class, or with PApplet?
i always get this java.lang.NullPointerException:

java.lang.NullPointerException
at processing.core.PApplet.registerNoArgs(PApplet.java:758)
at processing.core.PApplet.registerDispose(PApplet.java:749)
at de.bezier.mysql.MySQL.<init>(MySQL.java:83)


THIS IS THE CLASS:

class MysqlAnfrage
{
 MySQL msql;
 PApplet p;
 
 String s;


 String user     = "root";

 String pass     = "root";

 String database = "database";  

 String table    = "table";
 
 
 MysqlAnfrage(PApplet p)
 {
   
   msql = new MySQL( "localhost", database, user, pass, p);
   
     if(!msql.connect())
        {
         
           println("connection failed");
       
        }
   
 }

 
 void getData() {
     
   msql.query( "SELECT * FROM " + table + " WHERE NOT image  ='' AND disable = 0  AND deleted = 0 ORDER BY uid");
   
   String s = msql.getString("image");
     
 }
 
}