Io Exception for signed applet in jre1.4.2

My applet is is making a connection with url(not same as applet host:cross domain) and reading the response.I have alreadyu signed it .It is working for jre 1.4.1 but not for 1.4.2.Can anyone help with this.Sample code will help a lot.
[270 byte] By [swapnilba] at [2007-10-1 19:22:44]
# 1

Signing applets:

http://forum.java.sun.com/thread.jsp?forum=63&thread=524815

second post and last post for the java class file using doprivileged

In 1.4.2 a bug was fixed that will now check if the entire stack is "trusted" to do

the current action.

If code is called from javascript an exception will be thrown, use doprivileged

check last post of the link above.

harmmeijera at 2007-7-11 15:29:07 > top of Java-index,Security,Signed Applets...