EventStream for all user from an enterprise account

Hi,

I have an enterprise account and have created an application. Now I need to create a Java application which gets notified anytime any enterprise user does an operation on its account.

I am using the EventStream class. I was able to get notifications when user X has done some operations in its account, but I cannot make it work to receive notifications for all users.

I was trying to use the enterprise connection as parameter for the EventStream constructor, but I get an error(403 Forbidden):

enterpriseConnection = BoxDeveloperEditionAPIConnection
        .getAppEnterpriseConnection(enterpriseId, clientId, 
clientSecret, pref, accessTokenCache);
EventStream stream = new EventStream(connection);
stream.start();

 However, if I am using the app user connection, it works fine, but only for user .

appUserConnection = BoxDeveloperEditionAPIConnection
        .getAppUserConnection(userId, clientId, clientSecret, 
pref, accessTokenCache);
EventStream stream = new EventStream(appUserConnection); 
stream.start();

 Is there a way to accomplish this?

Tx