Java native, JNI / JNA expert required

We require a Java expert on Java Native API and JNI under MS windows and to identify window handles and window activities We search for the right fit in the team for regular work. This is a reliable delivery with a reliable communication. To identify if you fit from the technical perspective here a small test task. As a quick test task here the requirements - NO/NONE UI required, only a ongoing desktop application. - NO/NONE persistence framework required (spring or something) implement a window detection per human visible physical screen/display - the visible windows with the visible coordinates per screen (and thus visible percentage) - the z order of the visible windows - if the window has currently the focus or not - the title + executable per windows - provide the result as a class with the details and a List containing all windows-data - provide also if user uses virtual desktops you deliver the code, which basically has - a main() + your required classes + methods - sysout the results to the console MS1: implement the data class and the list of all open windows per physical screen + focus/active flag MS2: implement the visibility section + z-order parts of all visible windows MS3: implement the rest of the requirements (e.g. title + executable) delivery? - in our git (will be shared after award) - as java source delivery - maven (dependencies are all managed there) - required libs need prior confirm to be accepted - JDK17 compatible your bid? you provide estimate as billable hours + delivery date per milestone, we may discuss about requirements we confirm, you implement Budget? we do not disclose, place your best bid to get considered