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
*
     * @param filePath the path of the file resource to create a handle for
     * @return the new file resource handle
     * @see #createFile
     */
    protected IFile createFileHandle(IPath filePath) {
        return IDEWorkbenchPlugin.getPluginWorkspace().getRoot().getFile(
                filePath);
    }
    /**
     * Creates the link target path if a link target has been specified. 
     */
    protected void createLinkTarget() {
        String linkTarget = linkedResourceGroup.getLinkTarget();
        if (linkTarget != null) {
        	linkTargetPath = URIUtil.toURI(linkTarget);
        } else {
            linkTargetPath = null;
        }
    }
    /**
     * Creates a new file resource in the selected container and with the selected
     * name. Creates any missing resource containers along the path; does nothing if
     * the container resources already exist.
     * <p>
     * In normal usage, this method is invoked after the user has pressed Finish on
     * the wizard; the enablement of the Finish button implies that all controls on 
     * on this page currently contain valid values.
     * </p>
     * <p>