Bug 305200 [EditorMgmt] FileEditorMappingContentProvider could just be replaced by ArrayContentProvider
This class doesn't seem to be very useful.
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardExportPage.java
}
    /**
     * Opens a container selection dialog and displays the user's subsequent
     * container selection in this page's resource name field.
     */
    protected void handleResourceBrowseButtonPressed() {
        IResource currentFolder = getSourceResource();
        if (currentFolder != null && currentFolder.getType() == IResource.FILE) {
			currentFolder = currentFolder.getParent();
		}
        IPath containerPath = queryForContainer((IContainer) currentFolder,
                IDEWorkbenchMessages.WizardExportPage_selectResourcesToExport);
        if (containerPath != null) { 
            String relativePath = containerPath.makeRelative().toString();
            if (!relativePath.toString().equals(resourceNameField.getText())) {
                resetSelectedResources();
                resourceNameField.setText(relativePath);
            }
        }
    }
    /**
     * Opens a resource selection dialog and records the user's subsequent
     * resource selections.
     */
    protected void handleResourceDetailsButtonPressed() {
        IAdaptable source = getSourceResource();
        if (source == null) {
			source = ResourcesPlugin.getWorkspace().getRoot();
		}
        selectAppropriateResources(source);