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
GridData.VERTICAL_ALIGN_BEGINNING));
		Button selectAll = new Button(buttonsComposite, SWT.PUSH);
		selectAll.setText(DataTransferMessages.DataTransfer_selectAll);
		selectAll.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				projectsList.setCheckedElements(selectedProjects);
				setPageComplete(projectsList.getCheckedElements().length > 0);
			}
		});
		Dialog.applyDialogFont(selectAll);
		setButtonLayoutData(selectAll);
		Button deselectAll = new Button(buttonsComposite, SWT.PUSH);
		deselectAll.setText(DataTransferMessages.DataTransfer_deselectAll);
		deselectAll.addSelectionListener(new SelectionAdapter() {
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent)
			 */
			public void widgetSelected(SelectionEvent e) {
				projectsList.setCheckedElements(new Object[0]);
				setPageComplete(false);
			}
		});
		Dialog.applyDialogFont(deselectAll);
		setButtonLayoutData(deselectAll);
		Button refresh = new Button(buttonsComposite, SWT.PUSH);
		refresh.setText(DataTransferMessages.DataTransfer_refresh);
		refresh.addSelectionListener(new SelectionAdapter() {
			/*