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
public WizardProjectsImportPage(String pageName) {
		super(pageName);
		setPageComplete(false);
		setTitle(DataTransferMessages.WizardProjectsImportPage_ImportProjectsTitle);
		setDescription(DataTransferMessages.WizardProjectsImportPage_ImportProjectsDescription);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
	 */
	public void createControl(Composite parent) {
		initializeDialogUnits(parent);
		Composite workArea = new Composite(parent, SWT.NONE);
		setControl(workArea);
		workArea.setLayout(new GridLayout());
		workArea.setLayoutData(new GridData(GridData.FILL_BOTH
				| GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL));
		createProjectsRoot(workArea);
		createProjectsList(workArea);
		createOptionsArea(workArea);
		restoreWidgetValues();
		Dialog.applyDialogFont(workArea);
	}
	/**
	 * Create the area with the extra options.
	 * 
	 * @param workArea
	 */
	private void createOptionsArea(Composite workArea) {