Signer information does not match signer information of other classes in the same package

I’m trying to compile and run the following examples Java code from the Lotus Domino Designer 8 Help file. I have Lotus Notes 8 installed with Lotus Domino Designer 8.

import lotus.domino.*;

public class platform1 extends NotesThread

{

public static void main(String argv)

{

    platform1 t = new platform1();

    t.start();

}

public void runNotes()

{

try

  {

    Session s = NotesFactory.createSession();

    // To bypass Readers fields restrictions

    // Session s = NotesFactory.createSessionWithFullAccess();

    String p = s.getPlatform();

    System.out.println("Platform = " + p);

  }

catch (Exception e)

  {

    e.printStackTrace();

  }

}

}

When I run this I get this error:

java.lang.SecurityException: class “lotus.domino.AgentBase”'s signer information does not match signer information of other classes in the same package

at java.lang.ClassLoader.checkCerts(ClassLoader.java:905)

at java.lang.ClassLoader.defineClass(ClassLoader.java:802)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:147)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:477)

at java.net.URLClassLoader.access$500(URLClassLoader.java:111)

at java.net.URLClassLoader$ClassFinder.run(URLClassLoader.java:849)

at java.security.AccessController.doPrivileged1(Native Method)

at java.security.AccessController.doPrivileged(AccessController.java:389)

at java.net.URLClassLoader.findClass(URLClassLoader.java:373)

at java.lang.ClassLoader.loadClass(ClassLoader.java:570)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:442)

at java.lang.ClassLoader.loadClass(ClassLoader.java:502)

at lotus.domino.local.Session.createSession(Unknown Source)

at lotus.domino.NotesFactory.createSession(Unknown Source)

at NotesJavaTest.runNotes(NotesJavaTest.java:44)

at lotus.domino.NotesThread.run(Unknown Source)

java.lang.NullPointerException

at NotesJavaTest.runNotes(NotesJavaTest.java:47)

at lotus.domino.NotesThread.run(Unknown Source)

Any ideas?

Subject: delete ibmjcaprovider.jar

see http://www-01.ibm.com/support/docview.wss?uid=swg21233375