Why doesn't a custom TrueType font fit in JTextField height?

Question

Java

The problem is described in the title.
Writing:

Font mainFont = createFont(Font.TRUETYPE_FONT, new File("res/my_font.ttf"));
JTextField textField = new JTextField("sample text");
textField.setFont(mainFont.deriveFont(32.0f);

Answer 1

In general, the solution was this:
1. Convert to OTF
2. Use as Type1 font