Connecting Android with Oracle server -

i trying connect android application oracle12c sql server through jdbc. android don't find oracle.securitypki , javax.management class files while loading jdbc. , checked these class files don't exist in jdbc driver.

please can me how can make connection possible using jdbc. , want mention have included internet permission in android manifest file.

here code:

import android.os.bundle; import android.widget.textview; import android.app.activity; import java.sql.*; import java.sql.connection; import java.sql.drivermanager; public class mainactivity extends activity  {     textview text;       protected void oncreate(bundle savedinstancestate)      {        super.oncreate(savedinstancestate);        setcontentview(r.layout.activity_main);          text=(textview)findviewbyid(r.id.txt_2);                 connection conn=null;        string url="jdbc:oracle:thin:@192.168.1.16:1521:mydatabase";        string username="system";        string password="xxxxx";        string driver="oracle.jdbc.driver.oracledriver";         try        {            class.forname(driver).newinstance();                 conn=drivermanager.getconnection(url, username, password);                   statement statement=conn.createstatement();                  resultset resultset=statement.executequery("select * student");                 resultset.next();            text.settext("hello "+resultset.getstring(1));               }        catch(exception ex)        {            text.settext("exception: "+ex.getcause());        }     }  } 

exceptions: colud not find class oracle.security.pki.oraclepkiprovider. not find class javax.management.mbeanserver.