[Windchill] Cannot do copy & paste in Applet

Scenario
As I do some operation in Windchill, because of some user interface was done by applet, it is inconvenience for us if we wolud like to copy some texts then paste them into the applet.

Solution
It is the security constraints so we cannot do copy and paster in applet window.
We can find out the java.policy file in JRE\lib\security, then append this declaration as bellows:

grant codeBase "http://hostname/Windchill/-" {
permission java.security.AllPermission;
};