This method of the StandardSecurityManager Class determines whether classes within the current execution context, based on the call stack of the current thread, are allowed to access the AWT event queue.
public void checkAwtEventQueueAccess();
The check succeeds only if all the classes found on the call stack possess UIPermissions, and those permissions allow access to the AWT event queue. This method overrides the java.lang.SecurityManager.checkAwtEventQueueAccess method.
SecurityException if the security check fails.