经过一段时间后，我又开始从今年早些时候开始研究一个项目。该应用程序是围绕使用Eclipse ADT Windowbuilder构建的GUI构建的。现在，当我想再次使用窗口构建器查看我的GUI类时，Eclipse开始解析并简单地在“刷新”时崩溃。这是我在终端中收到的崩溃消息：
Exception in thread "Thread-16" org.eclipse.swt.SWTException: Invalid thread access
at org.eclipse.swt.SWT.error(SWT.java:4397)
at org.eclipse.swt.SWT.error(SWT.java:4312)
at org.eclipse.swt.SWT.error(SWT.java:4283)
at org.eclipse.swt.widgets.Widget.error(Widget.java:481)
at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:419)
at org.eclipse.swt.widgets.Control.isVisible(Control.java:3620)
at org.eclipse.swt.widgets.ProgressBar.timerProc(ProgressBar.java:283)
at org.eclipse.swt.widgets.Display.windowTimerProc(Display.java:4587)
[xcb] Unknown sequence number while processing queue
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
java: ../../src/xcb_io.c:274: poll_for_event: Zusicherung »!xcb_xlib_threads_sequence_lost« nicht erfüllt.
到目前为止，我不知道如何解决这个问题。 Windowbuilder在这个应用程序中已经使用了几个月。
编辑：
这是GUI的类。
public class DBDatabaseSystem implements Serializable {
public static JFrame mainGui;
public static Config config;
private static final long serialVersionUID = -5614180535012598751L;
private static final String programVersion = "20.07.2015-001";
private static JTable table;
private static JSplitPane splitPane;
private static DefaultTableModel model;
private static SequentialNumber sequentialNumber = new SequentialNumber();
private static boolean unsavedChanges = false;
private static boolean filechooserOpen = false;
private static JList<String> infoList = new JList<String>();
private static DefaultListModel<String> infoListModel = new DefaultListModel<String>();
private static JScrollPane scrollPane_1 = new JScrollPane();
private static String adminEmailLink = "";
public static void main(String[] args) {
long startTime = System.nanoTime();
config = new Config();
config.loadConfig();
mainGui = new JFrame();
mainGui.setIconImage(Toolkit.getDefaultToolkit()
.getImage("1426088835_Database-Cloud-512.png"));
mainGui.setTitle("DB Baumaßnahmen Datenbank " + programVersion);
mainGui.setResizable(false);
mainGui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainGui.setSize(1360, 645);
mainGui.setLocationRelativeTo(null); // center window
mainGui.addWindowListener(new WindowAdapter() { // event listener for
// window close action
@Override
public void windowClosing(WindowEvent e) {
if (config.getDatabaseFile().contains(".dbd")) {
if (unsavedChanges == true) {
int selection = JOptionPane.showConfirmDialog(mainGui,
"Es sind noch ungesicherte Änderungen in der Datenbank vorhanden. Möchten sie diese vor dem Beenden speichern?",
"Nicht gespiecherte Änderungen an der Datenbank", JOptionPane.YES_NO_OPTION);
if (selection == 0) {
saveModel(new File(config.getDatabaseFile()));
}
}
}
config.saveConfig();
}
});
JMenuBar menuBar = new JMenuBar();
mainGui.setJMenuBar(menuBar);
JMenu menuDatabase = new JMenu("Datenbank");
menuBar.add(menuDatabase);
JMenu mnEe = new JMenu("Exportieren");
menuBar.add(mnEe);
JMenuItem mntmNewMenuItem = new JMenuItem("Speicherpfad für Aufträge auswählen...");
mnEe.add(mntmNewMenuItem);
mntmNewMenuItem.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JFileChooser fc = new JFileChooser();
fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
if (fc.showOpenDialog(mainGui) == JFileChooser.APPROVE_OPTION
&& fc.getSelectedFile().toString() != "") {
// add trailing / to pdf files
config.setPdfExportPath(fc.getSelectedFile().getAbsolutePath() + "/");
}
}
});
JMenuItem menuButtonExportTasks = new JMenuItem("Gewählte Aufträge exportieren");
mnEe.add(menuButtonExportTasks);
menuButtonExportTasks.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (table.getSelectedRow() != -1) {
ExportTaskToPDF.exportTaskToPdf("Durchzuführende Baumaßnahmen", getSelectedTasksAsList());
ExportTaskToPDF.openExportPath();
} else {
addWarning("Es muss mindestens ein Auftrag zum Export ausgewählt sein.");
}
}
});
JMenu menuView = new JMenu("Ansicht");
menuBar.add(menuView);
JMenu menuHelp = new JMenu("Hilfe");
menuBar.add(menuHelp);
JMenuItem menuItemNewDatabase = new JMenuItem("Neue Datenbank anlegen...");
menuDatabase.add(menuItemNewDatabase);
menuItemNewDatabase.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
setDatabasePath();
createEmptyModel();
table.setModel(model);
initColumModel();
}
});
JSeparator seperatorMenuDatabase = new JSeparator();
menuDatabase.add(seperatorMenuDatabase);
JMenuItem MenuItemLoadDatabase = new JMenuItem("Datenbank öffnen...");
menuDatabase.add(MenuItemLoadDatabase);
MenuItemLoadDatabase.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
filechooserOpen = true;
setDatabasePath();
if (config.getDatabaseFile().contains(".dbd")) {
loadModel(new File(config.getDatabaseFile()));
}
}
});
JMenuItem menuItemSaveDatabase = new JMenuItem("Datenbank speichern");
menuDatabase.add(menuItemSaveDatabase);
menuItemSaveDatabase.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
saveModel(new File(config.getDatabaseFile()));
}
});
JMenuItem menuItemSaveDatabaseAs = new JMenuItem("Datenbank speichern unter...");
menuDatabase.add(menuItemSaveDatabaseAs);
menuItemSaveDatabaseAs.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
setDatabasePath();
saveModel(new File(config.getDatabaseFile()));
}
});
JMenuItem menuItemResetView = new JMenuItem("Ansicht zurücksetzen");
menuView.add(menuItemResetView);
final JCheckBoxMenuItem chckbxmntmFrameAlwaysOnTop = new JCheckBoxMenuItem("Fenster immer im Vordergrund");
menuView.add(chckbxmntmFrameAlwaysOnTop);
chckbxmntmFrameAlwaysOnTop.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
if (chckbxmntmFrameAlwaysOnTop.isSelected()) {
mainGui.setAlwaysOnTop(true);
} else {
mainGui.setAlwaysOnTop(false);
}
}
});
menuItemResetView.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
initColumModel();
}
});
JMenuItem menuItemAbout = new JMenuItem("Über...");
menuHelp.add(menuItemAbout);
menuItemAbout.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(mainGui,
"<html>Programm: DB Baumaßnahmen<br><br>Version: " + programVersion
+ "<br><br>Entwickler: <br><br>Support: " + adminEmailLink,
"Über", JOptionPane.INFORMATION_MESSAGE);
}
});
JMenuItem menuItemCheckUpdates = new JMenuItem("Auf Updates prüfen...");
menuItemCheckUpdates.setEnabled(false);
menuHelp.add(menuItemCheckUpdates);
mainGui.getContentPane().setLayout(new BorderLayout(0, 0));
JPanel panel = new JPanel();
mainGui.getContentPane().add(panel);
panel.setLayout(new BoxLayout(panel, BoxLayout.X_AXIS));
splitPane = new JSplitPane();
splitPane.setEnabled(false);
splitPane.setResizeWeight(0.55);
splitPane.setAlignmentY(Component.CENTER_ALIGNMENT);
splitPane.setAlignmentX(Component.CENTER_ALIGNMENT);
splitPane.setOrientation(JSplitPane.VERTICAL_SPLIT);
panel.add(splitPane);
JScrollPane scrollPane = new JScrollPane();
splitPane.setLeftComponent(scrollPane);
table = new JTable();
table.getTableHeader().setReorderingAllowed(false);
table.setAutoCreateRowSorter(true);
table.setRowHeight(20);
table.getModel().addTableModelListener(new TableModelListener() {
public void tableChanged(TableModelEvent e) {
unsavedChanges = true; // catch if there was a change
}
});
if (config.getDatabaseFile().contains(".dbd")) {
loadModel(new File(config.getDatabaseFile())); // autoload table
// from disk if
// possible
initColumModel(); // reset table layout to defaults
} else {
createEmptyModel();
table.setModel(model);
initColumModel();
}
scrollPane.setViewportView(table);
JPopupMenu popupMenu = new JPopupMenu();
addPopup(table, popupMenu);
JMenuItem mntmAuftragHinzufgen = new JMenuItem("Auftrag hinzufügen");
popupMenu.add(mntmAuftragHinzufgen);
mntmAuftragHinzufgen.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
addRow();
}
});
JMenuItem mntmNewMenuItem_4 = new JMenuItem("Auftrag entfernen");
popupMenu.add(mntmNewMenuItem_4);
mntmNewMenuItem_4.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
removeSelectedRows();
}
});
JPanel panel_1 = new JPanel();
splitPane.setRightComponent(panel_1);
panel_1.setLayout(null);
JButton buttonNewTask = new JButton("Neuer Auftrag");
buttonNewTask.setBounds(12, 12, 174, 25);
panel_1.add(buttonNewTask);
buttonNewTask.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
addRow();
}
});
JButton buttonDeleteTask = new JButton("Auftrag entfernen");
buttonDeleteTask.setBounds(12, 49, 174, 25);
panel_1.add(buttonDeleteTask);
buttonDeleteTask.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
removeSelectedRows();
}
});
JButton buttonPrintTask = new JButton("Auftrag exportieren");
buttonPrintTask.setBounds(198, 12, 174, 25);
panel_1.add(buttonPrintTask);
scrollPane_1.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
scrollPane_1.setBounds(745, 12, 600, 65);
panel_1.add(scrollPane_1);
infoList.setForeground(Color.BLACK);
// add info panel (list) containing runtime information
infoList.setModel(infoListModel);
scrollPane_1.setViewportView(infoList);
buttonPrintTask.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
ExportTaskToPDF.exportTaskToPdf("Durchzuführende Baumaßnahmen", getSelectedTasksAsList());
}
});
// scroll down to latest element
table.scrollRectToVisible((table.getCellRect(table.getRowCount() - 1, 0, true)));
mainGui.setVisible(true);
// add startup time to infoList
long endTime = System.nanoTime();
addInfo(((endTime - startTime) / 1000000) + " ms Startzeit");
}
public static void initColumModel() {
table.getColumnModel().getColumn(0).setResizable(false);
table.getColumnModel().getColumn(0).setPreferredWidth(50);
table.getColumnModel().getColumn(1).setResizable(false);
table.getColumnModel().getColumn(1).setPreferredWidth(50);
table.getColumnModel().getColumn(2).setResizable(false);
table.getColumnModel().getColumn(2).setPreferredWidth(81);
table.getColumnModel().getColumn(3).setResizable(false);
table.getColumnModel().getColumn(3).setPreferredWidth(81);
table.getColumnModel().getColumn(4).setPreferredWidth(81);
table.getColumnModel().getColumn(5).setPreferredWidth(134);
table.getColumnModel().getColumn(6).setPreferredWidth(123);
table.getColumnModel().getColumn(7).setPreferredWidth(95);
table.getColumnModel().getColumn(8).setPreferredWidth(95);
table.getColumnModel().getColumn(9).setPreferredWidth(226);
table.getColumnModel().getColumn(10).setResizable(false);
table.getColumnModel().getColumn(10).setPreferredWidth(300);
table.getColumnModel().getColumn(11).setResizable(false);
table.getColumnModel().getColumn(11).setPreferredWidth(102);
}
public static void saveModel(File filename) {
FileOutputStream fos = null;
ObjectOutputStream out = null;
if (!config.getDatabaseFile().contains(".dbd")) {
setDatabasePath();
filename = new File(config.getDatabaseFile());
}
try {
table.clearSelection(); // undo all selections to prevent user from
// editing while saving
if (table.isEditing()) { // prevent saving when user is editing a cell
table.getCellEditor().stopCellEditing();
}
fos = new FileOutputStream(filename);
out = new ObjectOutputStream(fos);
table.setModel(new DefaultTableModel());
// detach model from table prior serializing
out.writeObject(model);
table.setModel(model); // re-attach table model
initColumModel(); // set layout again
out.writeObject(sequentialNumber);
} catch (Exception errWrite) {
errWrite.printStackTrace();
System.out.println("Fehler beim speichern der Datenbank");
addError("Fehler beim speichern der Datenbank");
} finally {
try {
fos.close();
out.close();
unsavedChanges = false;
} catch (Exception errClose) {
errClose.printStackTrace();
System.out.println("Fehler beim Schließen der Dateiströme");
addError("Fehler beim Schließen der Dateiströme");
}
}
}
public static void loadModel(File filename) {
FileInputStream fis = null;
ObjectInputStream ois = null;
if (!config.getDatabaseFile().contains(".dbd")) {
setDatabasePath();
filename = new File(config.getDatabaseFile());
}
try {
fis = new FileInputStream(filename);
ois = new ObjectInputStream(fis);
// TODO Lock database for application runtime to avoid conflicts
// with other clients
model = (DefaultTableModel) ois.readObject();
sequentialNumber = (SequentialNumber) ois.readObject();
table.setModel(model); // set the table model to the just loaded
// one, this makes data appear
initColumModel(); // make sure the layout fits
ois.close();
fis.close();
addInfo(model.getRowCount() + " Datensätze erfolgreich geladen");
} catch (FileNotFoundException errNotFound) {
addError("Datenbank konnte nicht gefunden werden, öffne leere Datenbank");
errNotFound.printStackTrace();
createEmptyModel();
table.setModel(model);
} catch (IOException errIO) {
System.out.println("Datei konnte nicht gelesen werden (IO Exception)");
errIO.printStackTrace();
if (filechooserOpen == true) {
addError("Fehler beim Lesen der Datenbank! (IO Exception)");
} else {
addError("Fehler beim Lesen der Datenbank! (IO Exception) Öffne jetzt mit leerer Datenbank!");
createEmptyModel();
table.setModel(model);
}
} catch (ClassNotFoundException errClassNotFound) {
System.out.println("Klasse zum Deserialisieren nicht gefunden");
errClassNotFound.printStackTrace();
addError("Fehler beim Lesen der Datenbank! (Datenbank veraltet). Erstelle jetzt neue Datenbank!");
createEmptyModel();
table.setModel(model);
}
}
public static void setDatabasePath() {
JFileChooser fc = new JFileChooser();
int fcRetrunValue = fc.showSaveDialog(fc);
if ((fcRetrunValue != JFileChooser.ABORT && fcRetrunValue != JFileChooser.CANCEL_OPTION)
&& fc.getSelectedFile().toString().contains(".dbd")) {
do {
JOptionPane.showMessageDialog(mainGui, "Bitte wählen Sie das richtige Dateiformat (.dbd)", "",
JOptionPane.ERROR_MESSAGE);
int fcReturnValueInLoop = fc.showSaveDialog(fc);
if (fcReturnValueInLoop == JFileChooser.ABORT || fcReturnValueInLoop == JFileChooser.CANCEL_OPTION) {
break; // prevent infinite file chooser
} else if (fc.getSelectedFile().toString().contains(".dbd")) {
config.setDatabaseFile(fc.getSelectedFile().toString());
break;
}
} while (!fc.getSelectedFile().toString().contains(".dbd"));
} else {
if (fc.getSelectedFile().toString() != "" && fc.getSelectedFile().toString().contains(".dbd")) {
config.setDatabaseFile(fc.getSelectedFile().toString());
}
}
}
public static void addRow() {
// get current date
String timeStamp = new SimpleDateFormat("dd.MM.yyyy").format(Calendar.getInstance().getTime());
// sequential number represents some kind of primary key in the database
sequentialNumber.increase();
model.addRow(new Object[] { sequentialNumber.getNumber(), "FB", null, null, timeStamp, null, null, null, null,
null, null, null });
// scroll to last row
table.scrollRectToVisible((table.getCellRect(table.getRowCount() - 1, 0, true)));
unsavedChanges = true; // ask upon close to save changes
}
public static void removeSelectedRows() {
// create int array that contains the row numbers of the user selection
int selectedRows[] = table.getSelectedRows();
for (int i = 0; i < selectedRows.length; i++) {
// [i] - i to take into account that the lines shift while removing
model.removeRow(selectedRows[i] - i);
unsavedChanges = true;
}
}
/**
* Initialize an empty table with default settings
*/
private static void createEmptyModel() {
model = new DefaultTableModel(new Object[][] {},
new String[] { "Lfd. Nr.", "FB Nr.", "Auftr. / Meld. Nr.", "Betra Nr.", "Datum", "Bahnhof", "Str. Km.",
"Sprz.", "Arb. Zeit", "Mitarbeiter", "Auftrag / Objekt(e)", "Abgeschlossen" }) {
private static final long serialVersionUID = 3701695679244364045L;
@SuppressWarnings("rawtypes")
Class[] columnTypes = new Class[] { Integer.class, String.class, Long.class, Long.class, String.class,
String.class, String.class, String.class, String.class, String.class, String.class, Boolean.class };
@SuppressWarnings({ "unchecked", "rawtypes" })
public Class getColumnClass(int columnIndex) {
return columnTypes[columnIndex];
}
};
sequentialNumber.reset();
}
public static ArrayList<Object[]> getSelectedTasksAsList() {
ArrayList<Object[]> tasks = new ArrayList<Object[]>();
if (table.getSelectedRowCount() > 0) { // check if there are selected
// rows
int[] selectedRows = table.getSelectedRows(); // get a list of
// selected rows
for (int i = 0; i < selectedRows.length; i++) { // print all
// selected tasks
Object[] taskAsArray = new Object[table.getColumnCount() - 1];
for (int j = 0; j < table.getColumnCount() - 1; j++) {
// add all columns from currently processed row to Object
// array
if ((table.getValueAt(table.convertRowIndexToModel(selectedRows[i]),
// avoid null pointer exception if column is empty
table.convertColumnIndexToModel(j))) != null) {
taskAsArray[j] = (table.getValueAt(table.convertRowIndexToModel(selectedRows[i]),
table.convertColumnIndexToModel(j)));
} else
taskAsArray[j] = new String("");
}
tasks.add(taskAsArray);
}
}
return tasks;
}
public void restart() {
// TODO implement function to restart app
}
public void updateApp() {
// TODO implement function to self-update the application
}
@SuppressWarnings("unused")
private void compareDates(String date1, String date2) {
DateTimeFormatter formatter = DateTimeFormat.forPattern("dd.MM.yyyy");
LocalDate localDate1 = formatter.parseLocalDate(date1);
LocalDate localDate2 = formatter.parseLocalDate(date2);
if (localDate1.isAfter(localDate2)) {
System.out.println("date1 comes after date2");
} else {
System.out.println("date1 comes before date2");
}
}
private static void addPopup(Component component, final JPopupMenu popup) {
component.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
if (e.isPopupTrigger()) {
showMenu(e);
}
}
public void mouseReleased(MouseEvent e) {
if (e.isPopupTrigger()) {
showMenu(e);
}
}
private void showMenu(MouseEvent e) {
popup.show(e.getComponent(), e.getX(), e.getY());
}
});
}
public static void addInfo(String message) {
infoList.setFont(new Font("Dialog", Font.PLAIN, 12));
infoListModel.addElement("[INFO]: " + message);
// make sure last index is visible else scroll accordingly
infoList.ensureIndexIsVisible(infoList.getModel().getSize() - 1);
}
public static void addWarning(String message) {
infoList.setFont(new Font("Dialog", Font.PLAIN, 12));
infoListModel.addElement("[WARN]: " + message);
infoList.ensureIndexIsVisible(infoList.getModel().getSize() - 1);
}
public static void addError(String message) {
infoList.setFont(new Font("Dialog", Font.PLAIN, 12));
infoListModel.addElement("[ERROR]: " + message);
infoList.ensureIndexIsVisible(infoList.getModel().getSize() - 1);
}
}