Corba Applet

Question

Hi guys,
i have made a java applet to talk to ORBit program on a linux platform. I have put all the classes into a jar file and put the applet on a web server. I even put the server program on the same directory as the html directory. This seems can avoid signing the java applet as network communication are from the same host.(not sure if this is neccessary.. ^^) When i try to view the applet in a broswer, it get a security exception. I have checked the java console and it seem that the applet is trying to read a orb.properties from the client side -- "/home/username/orb.properties". I get arround this problem by modifying the .java.policy file to
grant {
permission java.io.FilePermission "/home/username/orb.properties" "r";
this solves the problem and my applet can now talk to the Orbit program. However, i don't want to modify the policy file on client everytime. I wonder whether it's possible to put a orb.propertis file in the jar file as well. and when the ORB get initialise, it reads that property file on server.
at the moment i use this method to initialise my orb
orb.init(null, null);
i wonder whether i can do somthing like this:
String args[] = new String[2];
args[0] = new String("-ORBproperties");
args[1] = new String("orb.properties"); // the orb.properties file on server
orb.init(args, null);
Something is wrong with this and i don't know where does it goes wrong......... mm.. and is the port number always 1050?????... i have tried to specify that port number.. but it failed too.. hence i don't know whether it's problem with port number or i simply can't use this method to initialise at all..
i have tried to put the <PARAM NAME="....ORBInitHost" VALUE="xxxx"> in the html page and initialise the orb by orb.init(this, null), but without luck.. has anyone get this running and can suggest how properly initialise this applet?? ^^
Indeed, i don't really know how to set the orb.properties file. It will be great if anyone can give me a good resource on setting up the orb.properties file. ^^ thanks in advance. pardon for my poor english.
cheers,
Lewis Lau

Answer 1

I think i solved the problem.. just thought someone may want to know too...... what i do is to
use a property object and put "org.omg.CORBA.ORBClass" as "com.sun.corba.se.internal.iiop.ORB"
i have read some other article suggest to use com.scom.sun.CORBA.iiop.ORB. however, it
didn't work in my case.