Please run the following simple test code:

import java.awt.*;
import java.util.stream.Stream;

public class ChoiceTest {

    private static void UI() {
        Frame frame = new Frame("Test frame");
        Choice choice = new Choice();
        Stream.of(new String[] {"item 1", "item 2", "item 3"}).forEach(choice::add);
        frame.add(choice);
        frame.setBounds(100, 100, 400, 200);
        frame.setVisible(true);
    }
    
    public static void main(String[] args) throws Exception { EventQueue.invokeAndWait(ChoiceTest::UI); }
}

Please compare screenshots:

JDK9 b94 - ok.png
current (3 Dec.) state of client repo build - nok.png (cannot see item text fully)

please note also that the frame sizes differ.

Windows 8 + HiDPI monitor