The code:

import static java.lang.System.out;

public class Main {
	public static void main(String args[]) {
		out.println("Test.");
	}
}


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Javadoc returned:

Loading source files for package Main.class...
javadoc: warning - No source files for package Main.class
Constructing Javadoc information...
javadoc: warning - No source files for package Main.class
javadoc: error - No public or protected classes found to document.
1 error
2 warnings