Java.Security.AccessControlException ERROR IN RMI PROGRAMMING

These errors are related to the security policy of java

Java has it's own security manager that takes care of all unprivileged connection accesses.

To resolve these kinds of errors ,you need to create a new security policy 

Eg. For allowing connections to ip 127.0.0.1 at pot 1099 and 1024

grant{
permission java.net.SocketPermission "localhost:1099", "connect, resolve";
permission java.net.SocketPermission "localhost:1024-", "connect, resolve";
permission java.net.SocketPermission "localhost:1024-", "accept, resolve";
permission java.net.SocketPermission "localhost:1099-", "accept, resolve";
};

Save the content in a file called policy.txt and now run your server as

java -Djava.security.policy=policy.txt Server

The policy file must be saved in same folder where you have saved Server.java