Bug 162916 [Undo] [IDE] Invalid thread access from new file wizard
Build: I20061031-0656 1) Create a simple project 2) In the file system, add file "a.txt" to the project 3) Back in Eclipse, do File > New > File, select the project and enter a name of "a.txt". An internal error occurs because it is trying to open an error dialog from a modal context thread: org.eclipse.swt.SWTException: Invalid thread access at org.eclipse.swt.SWT.error(SWT.java:3407) at org.eclipse.swt.SWT.error(SWT.java:3330) at org.eclipse.swt.SWT.error(SWT.java:3301) at org.eclipse.swt.widgets.Widget.error(Widget.java:432) at org.eclipse.swt.widgets.Shell.<init>(Shell.java:271) at org.eclipse.swt.widgets.Shell.<init>(Shell.java:357) at org.eclipse.jface.window.Window.createShell(Window.java:482) at org.eclipse.jface.window.Window.create(Window.java:425) at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1111) at org.eclipse.jface.window.Window.open(Window.java:785) at org.eclipse.jface.dialogs.ErrorDialog.open(ErrorDialog.java:296) at org.eclipse.jface.dialogs.ErrorDialog.openError(ErrorDialog.java:360) at org.eclipse.jface.dialogs.ErrorDialog.openError(ErrorDialog.java:325) at org.eclipse.ui.dialogs.WizardNewFileCreationPage$4.run(WizardNewFileCreationPage.java:343) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardNewFileCreationPage.java
/**
     * First time the advanced group is validated.
     */
    private boolean firstLinkCheck = true;
    /**
     * Creates a new file creation wizard page. If the initial resource selection 
     * contains exactly one container resource then it will be used as the default
     * container resource.
     *
     * @param pageName the name of the page
     * @param selection the current resource selection
     */
    public WizardNewFileCreationPage(String pageName,
            IStructuredSelection selection) {
        super(pageName);
        setPageComplete(false);
        this.currentSelection = selection;
    }
    /**
     * Creates the widget for advanced options.
     *  
     * @param parent the parent composite
     */
    protected void createAdvancedControls(Composite parent) {
        Preferences preferences = ResourcesPlugin.getPlugin()
                .getPluginPreferences();
        if (preferences.getBoolean(ResourcesPlugin.PREF_DISABLE_LINKING) == false) {
            linkedResourceParent = new Composite(parent, SWT.NONE);
            linkedResourceParent.setFont(parent.getFont());
            linkedResourceParent.setLayoutData(new GridData(