Bug 183013 [Wizards] Errror importing into linked EFS folder - "undefined path variable"
1. Implement a EFS plugin - with a writable file system. 2. Create a linked folder to the file system 3. select to import into the linked folder 4. select a valid zip file 5. the following error is reported " Destination folder location is based on an undefined path variable." The problem seems to be in org.eclipse.ui.dialogs.WizardResourceImportPage - validateDestinationGroup if (container.getLocation() == null) { if (container.isLinked()) { should use getLocationURI ?
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardResourceImportPage.java
*/
    protected abstract void createSourceGroup(Composite parent);
    /*
     * @see WizardDataTransferPage.getErrorDialogTitle()
     */
    protected String getErrorDialogTitle() {
        return IDEWorkbenchMessages.WizardImportPage_errorDialogTitle;
    }
    /**
     * Returns the path of the container resource specified in the container
     * name entry field, or <code>null</code> if no name has been typed in.
     * <p>
     * The container specified by the full path might not exist and would need to
     * be created.
     * </p>
     *
     * @return the full path of the container resource specified in
     *   the container name entry field, or <code>null</code>
     */
    protected IPath getContainerFullPath() {
        IWorkspace workspace = IDEWorkbenchPlugin.getPluginWorkspace();
        
        IPath testPath = getResourcePath();
        if (testPath.equals(workspace.getRoot().getFullPath())) {
			return testPath;
		}
        IStatus result = workspace.validatePath(testPath.toString(),
                IResource.PROJECT | IResource.FOLDER | IResource.ROOT);
        if (result.isOK()) {
            return testPath;