app

require 'java'
require 'forms-1.3.0.jar'
require 'miglayout15-swing.jar'
require 'gui.jar'
Java::Gui.main([])

error

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: net/miginfocom/swing/MigLayout
	at Gui.initialize(Gui.java:67)
	at Gui.<init>(Gui.java:49)
	at Gui$1.run(Gui.java:36)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:682)
	at java.awt.EventQueue.access$000(EventQueue.java:85)
	at java.awt.EventQueue$1.run(EventQueue.java:643)
	at java.awt.EventQueue$1.run(EventQueue.java:641)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:652)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: java.lang.ClassNotFoundException: net.miginfocom.swing.MigLayout
	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	... 17 more

gui.java

import java.awt.EventQueue;

import javax.swing.JFrame;
import java.awt.BorderLayout;
import javax.swing.JPanel;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JLabel;
import javax.swing.JTextField;
import net.miginfocom.swing.MigLayout;
import javax.swing.JComboBox;
import javax.swing.JCheckBox;
import javax.swing.JTabbedPane;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.GridLayout;
import javax.swing.JEditorPane;


public class Gui {

	private JFrame frmWebappswordSdk;
	private JTextField textField;
	private JPanel submodulesPanel;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					Gui window = new Gui();
					window.frmWebappswordSdk.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the application.
	 */
	public Gui() {
		initialize();
	}

	/**
	 * Initialize the contents of the frame.
	 */
	private void initialize() {
		frmWebappswordSdk = new JFrame();
		frmWebappswordSdk.setTitle("App");
		frmWebappswordSdk.setBounds(100, 100, 478, 348);
		frmWebappswordSdk.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frmWebappswordSdk.getContentPane().setLayout(new BorderLayout(0, 0));
		
		JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.LEFT);
		frmWebappswordSdk.getContentPane().add(tabbedPane, BorderLayout.CENTER);
		
		JPanel info = new JPanel();
		tabbedPane.addTab("Info", null, info, null);
		info.setLayout(new MigLayout("", "[311px][grow]", "[16px][16px][][][grow]"));
		
		JLabel nameLabel = new JLabel("Name");
		info.add(nameLabel, "flowx,cell 0 0,alignx left");
		
		textField = new JTextField();
		info.add(textField, "cell 1 0,alignx left");
		textField.setColumns(20);
		
		JLabel langLabel = new JLabel("Lang");
		info.add(langLabel, "cell 0 1,alignx left");
		
		JComboBox comboBox = new JComboBox();
		comboBox.setModel(new DefaultComboBoxModel(new String[] {"PHP"}));
		info.add(comboBox, "cell 1 1,growx");
		
		JLabel methodsLabel = new JLabel("Methods");
		info.add(methodsLabel, "cell 0 2,alignx left");
		
		JCheckBox chckbxNewCheckBox = new JCheckBox("New check box");
		info.add(chckbxNewCheckBox, "flowy,cell 1 2");
		
		JLabel submodulesLabel = new JLabel("Submodules");
		info.add(submodulesLabel, "cell 0 3,alignx left");
		
		JCheckBox chckbxNewCheckBox_1 = new JCheckBox("New check box");
		info.add(chckbxNewCheckBox_1, "cell 1 2");
		
		JButton addSubmoduleButton = new JButton("+");
		addSubmoduleButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				System.out.println(textField.getText());
				JComboBox comboBox_2 = new JComboBox();
				submodulesPanel.add(comboBox_2);
			}
		});
		info.add(addSubmoduleButton, "flowx,cell 1 3,aligny baseline");
		
		submodulesPanel = new JPanel();
		info.add(submodulesPanel, "cell 1 4,grow");
		submodulesPanel.setLayout(new GridLayout(0, 1, 0, 0));
		
		JComboBox comboBox_2 = new JComboBox();
		submodulesPanel.add(comboBox_2);
		
		JPanel installers = new JPanel();
		tabbedPane.addTab("Installers", null, installers, null);
		installers.setLayout(new GridLayout(0, 1, 0, 0));
		
		JEditorPane editorPane = new JEditorPane();
		installers.add(editorPane);
		
		JPanel validators = new JPanel();
		tabbedPane.addTab("Validators", null, validators, null);
		validators.setLayout(new GridLayout(1, 0, 0, 0));
		
		JEditorPane editorPane_1 = new JEditorPane();
		validators.add(editorPane_1);
		
		JMenuBar menuBar = new JMenuBar();
		frmWebappswordSdk.getContentPane().add(menuBar, BorderLayout.NORTH);
		
		JMenu mnFile = new JMenu("File");
		menuBar.add(mnFile);
		
		JMenuItem mntmNew = new JMenuItem("New");
		mnFile.add(mntmNew);
		
		JMenuItem mntmOpen = new JMenuItem("Open");
		mnFile.add(mntmOpen);
	}
	
}