Fill in the snippet for Java

There is a snippet on JAVA, which is based on the class awt.robot. The snippet code can be seen here: Texto oculto

This snippet is only 20 lines of code and does a simple thing: take screenshots and upload them to the server.
But the awt.robot class is blocking access to it, apparently due to security settings. We need someone with experience in JAVA who can sort out the snippet and awt.Robot settings and make them work.

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