flagged shebang line in single source java file

I have the following code in file named 'howdy'.

#! /usr/lib/jvm/adoptopenjdk-11-openj9-amd64/bin/java --source 11

public class Main {

public static void main(String[] args) {
System.out.println("Howdy.");
}

}

Is there any way to not have the Intellij flag the first character of shebang line as an error and still edit as a Java file?