Bug 259954 [Import/Export] Warning should be displayed when no projects are available in the archive/directory
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardProjectsImportPage.java
}
		projectsList.refresh(true);
		ProjectRecord[] projects = getProjectRecords();
		boolean displayWarning = false;
		for (int i = 0; i < projects.length; i++) {
			if(projects[i].hasConflicts) {
				displayWarning = true;
				projectsList.setGrayed(projects[i], true);
			}else {
				projectsList.setChecked(projects[i], true);
			}
		}
		
		if (displayWarning) {
			setMessage(
					DataTransferMessages.WizardProjectsImportPage_projectsInWorkspace,
					WARNING);
		} else {
			setMessage(DataTransferMessages.WizardProjectsImportPage_ImportProjectsDescription);
		}
		setPageComplete(projectsList.getCheckedElements().length > 0);
	}
	/**
	 * Answer a handle to the zip file currently specified as being the source.
	 * Return null if this file does not exist or is not of valid format.
	 */
	private ZipFile getSpecifiedZipSourceFile(String fileName) {
		if (fileName.length() == 0) {
			return null;