Bug 191662 [Import/Export] Warn of duplicate projects in project import wizard
Build ID: I20070601-1539 Steps To Reproduce: 1. Create a project. 2. Export it to *.zip file. 3. Close the project. 4. Try to import it. 5. Empty projects list. More information: This is pretty annoying, since I am using mylar and a workspace with many closed projects. If I try to import a project that already exists, I see nothing and I am pretty confused (there is no warning).
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardProjectsImportPage.java
private ProjectRecord[] selectedProjects = new ProjectRecord[0];
	
	
	private static String previouslyBrowsedDirectory = ""; 
	
	
	private static String previouslyBrowsedArchive = ""; 
	private Button projectFromDirectoryRadio;
	private Button projectFromArchiveRadio;
	private Text archivePathField;
	private Button browseDirectoriesButton;
	private Button browseArchivesButton;
	private IProject[] wsProjects;
	
	private static final String[] FILE_IMPORT_MASK = {
			"*.jar;*.zip;*.tar;*.tar.gz;*.tgz", "*.*" }; 
	
	private String lastPath;
	/**
	 * Creates a new project creation wizard page.
	 * 
	 */
	public WizardProjectsImportPage() {
		this("wizardExternalProjectsPage"); 
	}
	/**
	 * Create a new instance of the receiver.
	 * 
	 * @param pageName
	 */