Bug 157646 [Import/Export] "Import Existing Project" from zip locks file - prevents deletion
Build: M20060629-1905 Even though I cancel the Import Existing Project wizard without completing it, the zip file selected becomes (and remains) locked and cannot be deleted until the workbench is closed. Steps: File > Import > Existing Projects Into Workspace Select a zip file that does not contain any projects Cancel the wizard, but leave the workbench running Attempt to delete the zipfile Result: On Windows XP, this will result in system error stating: "Cannot delete <filename>: It is being used by another person or program." This problem will continue until the workbench is closed.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardProjectsImportPage.java
* 
	 * @param files
	 * @param directory
	 * @param monitor
	 *            The monitor to report to
	 * @return boolean <code>true</code> if the operation was completed.
	 */
	private boolean collectProjectFilesFromDirectory(Collection files,
			File directory, IProgressMonitor monitor) {
		if (monitor.isCanceled()) {
			return false;
		}
		monitor.subTask(NLS.bind(
				DataTransferMessages.WizardProjectsImportPage_CheckingMessage,
				directory.getPath()));
		File[] contents = directory.listFiles();
		
		final String dotProject = IProjectDescription.DESCRIPTION_FILE_NAME;
		for (int i = 0; i < contents.length; i++) {
			File file = contents[i];
			if (file.isFile() && file.getName().equals(dotProject)) {
				files.add(file);
				
				
				return true;
			}
		}
		
		for (int i = 0; i < contents.length; i++) {
			if (contents[i].isDirectory()) {