(java) Problemi con barra di scorrimento orizzontale

[abcd1000]

Qualcuno mi può dire come mai non mi compare la barra di scorrimento orizzontale? Dove sbaglio?

import java.awt.BorderLayout;
import java.awt.Container;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextPane;

public class ScrollBarTest extends JFrame {

	private String text = "very very very very very very very very very very very very long text";
	public ScrollBarTest() {
		super("ScrollBarTest");
		JTabbedPane documents = new JTabbedPane();
		JTextPane editor = new JTextPane();
		editor.setText(text);
		JScrollPane editorScroll = new JScrollPane(editor);
		documents.add("doc1", editorScroll);
		Container c = getContentPane();
		c.setLayout(new BorderLayout());
		c.add(documents, BorderLayout.CENTER);
		setSize(200, 300);
		setVisible(true);
		
	}
	
	public static void main(String[] args) {
		new ScrollBarTest();
	}
}