I am teaching a first course to about 100 students.  Each assignment requires an applet posted to a portfolio web page.  The current assignment requires the use of either P3D or OPENGL.  Both run properly in the IDE but the applets fail to load for OPENGL.  I tried this as an applet on the web and using appletview on a Mac in the terminal window.  The first part of the error message is:
  FRED2:applet7 jar$ appletviewer index.html
    java.security.AccessControlException: access denied (java.net.SocketPermission download.java.net    
      connect,accept,resolve)
     at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)

When I removed the import statement for OPENGL and replace OPENGL argument in the function call of size( ) with P3D, the error goes away.

I am assuming the import is the problem. 
Two questions:
  briefly, why?
  Is there a work-around to allow for import of this or other libraries that I want the class to use in future assignments while continuing to post applets on the web.

Thanks
Jim Roberts