File list (Check if you may need any files):
package.html
JLayer.java
JLayeredPane.java
JList.java
JMenu.java
JMenuBar.java
JMenuItem.java
JSplitPane.java
JTabbedPane.java
JTable.java
JTextArea.java
JTextField.java
JTextPane.java
JToggleButton.java
JToolBar.java
JToolTip.java
JTree.java
JViewport.java
JWindow.java
KeyboardManager.java
KeyStroke.java
LayoutComparator.java
LayoutFocusTraversalPolicy.java
LayoutStyle.java
LegacyGlueFocusTraversalPolicy.java
ListCellRenderer.java
ListModel.java
ListSelectionModel.java
LookAndFeel.java
MenuElement.java
MenuSelectionManager.java
MultiUIDefaults.java
MutableComboBoxModel.java
OverlayLayout.java
Painter.java
Popup.java
PopupFactory.java
ProgressMonitor.java
ProgressMonitorInputStream.java
Renderer.java
RepaintManager.java
RootPaneContainer.java
RowFilter.java
RowSorter.java
Scrollable.java
ScrollPaneConstants.java
ScrollPaneLayout.java
SingleSelectionModel.java
SizeRequirements.java
SizeSequence.java
SortingFocusTraversalPolicy.java
SortOrder.java
SpinnerDateModel.java
SpinnerListModel.java
SpinnerModel.java
SpinnerNumberModel.java
Spring.java
SpringLayout.java
SwingConstants.java
SwingHeavyWeight.java
SwingPaintEventDispatcher.java
SwingUtilities.java
SwingWorker.java
TablePrintable.java
Timer.java
TimerQueue.java
ToolTipManager.java
TransferHandler.java
UIDefaults.java
UIManager.java
UnsupportedLookAndFeelException.java
ViewportLayout.java
WindowConstants.java
YJLabel.java