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
final boolean dirSelected = this.projectFromDirectoryRadio
				.getSelection();
		try {
			getContainer().run(true, true, new IRunnableWithProgress() {
				/*
				 * (non-Javadoc)
				 * 
				 * @see
				 * org.eclipse.jface.operation.IRunnableWithProgress#run(org
				 * .eclipse.core.runtime.IProgressMonitor)
				 */
				public void run(IProgressMonitor monitor) {
					monitor
							.beginTask(
									DataTransferMessages.WizardProjectsImportPage_SearchingMessage,
									100);
					selectedProjects = new ProjectRecord[0];
					Collection files = new ArrayList();
					monitor.worked(10);
					if (!dirSelected
							&& ArchiveFileManipulations.isTarFile(path)) {
						TarFile sourceTarFile = getSpecifiedTarSourceFile(path);
						if (sourceTarFile == null) {
							return;
						}
						structureProvider = new TarLeveledStructureProvider(
								sourceTarFile);
						Object child = structureProvider.getRoot();
						if (!collectProjectFilesFromProvider(files, child, 0,