Bug 279781 [Import/Export] Recursive addition problem in Import > Existing projects into workspace
Build ID: M20090211-1700 Steps To Reproduce: 1. Create Workspace ws1 2. Create project p1. 3. Create Workspace ws1/p1 4. One Import > Existing projects into workspace 5. Select ws1/p1 and check the option "Copy projects into workspace". 6. Click finish button. 7. Observe that p1 is recursively added. More information: In ideal case we should check for recursive addition and avoid it.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardProjectsImportPage.java
* 
	 * @return boolean <code>true</code> if all project creations were
	 * 	successful.
	 */
	public boolean createProjects() {
		saveWidgetValues();
		
		final Object[] selected = projectsList.getCheckedElements();
		createdProjects = new ArrayList();
		WorkspaceModifyOperation op = new WorkspaceModifyOperation() {
			protected void execute(IProgressMonitor monitor)
					throws InvocationTargetException, InterruptedException {
				try {
					monitor.beginTask("", selected.length); 
					if (monitor.isCanceled()) {
						throw new OperationCanceledException();
					}
					for (int i = 0; i < selected.length; i++) {
						createExistingProject((ProjectRecord) selected[i],
								new SubProgressMonitor(monitor, 1));
					}
				} finally {
					monitor.done();
				}
			}
		};
		
		try {
			getContainer().run(true, true, op);
		} catch (InterruptedException e) {