TCP Input to Splunk lnput from SAAS App

I have a java application running in an AWS instance. I want to use the following log4j2 appender to push logs directly into the TCP input in Splunk Cloud; However, it seems I have to create a universal forwarder, but I cannot install a forwarder on that EC2 instance ? I just want to push the log4j2 output directly into the Splunk TCP Input, is this possible on Splunk Cloud? We are currently on a trial instance, so maybe I cannot see this option until we move to Enterprise.