A DESCRIPTION OF THE PROBLEM :
It seems that the "Consolas" font is displayed incorrectly in Swing
(JTextField, JButton, etc.) due to different font metrics
between old T2K and new (FreeType?) font engine.
This can be reproduced on both Linux and Windows.

Test result:
https://imgur.com/a/uvwQzWF

FontMetrics for new Font("Consolas", Font.BOLD, 32) as printed in the test code are:

In OpenJDK 9/10/11-ea:
ascent=24, descent=9, height=38

In Oracle JRE 9/10:
ascent=27, descent=6, height=38

This problem does not occur in Oracle JRE 11-ea
when running with -Dsun.java2d.font.scaler=t2k option (Windows).

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Correct vertical text position
ACTUAL -
Text shifted up

---------- BEGIN SOURCE ----------
import java.awt.*;
import javax.swing.*;

public class Test extends JFrame {

Test() {
super("Test");
setDefaultCloseOperation(EXIT_ON_CLOSE);

JButton b = new JButton("qq Consolas Font Test yy");
b.setFont(new Font("Consolas", Font.BOLD, 32));
add(b);

pack();
setVisible(true);
}

public static void main(String[] args) {
SwingUtilities.invokeLater(Test::new);
}

}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Use older "Lucida Console" font on Windows

FREQUENCY : always