Bug 150998 [Import/Export] Import Projects Wizard: Finish is enabled even if no project is selected
In Import Existing Projects Wizard, the Finish button is enabled even when no projects are selected for import. When the Import wizard is first invoked, Finish is disabled, since no projects have been selected for import. If a directory with no Eclipse projects is selected, Finish remains disabled. If a directory with at least one Eclipse project is selected, then Finish becomes enabled. If none of the projects are selected for import, then Finish remains enabled. Although this behaviour does not cause any functional problems, the UI seems inconsistent.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardProjectsImportPage.java
}
		/**
		 * Returns whether the given project description file path is in the default location for a project
		 * @param path The path to examine
		 * @return Whether the given path is the default location for a project
		 */
		private boolean isDefaultLocation(IPath path) {
			
			if (path.segmentCount() < 2)
				return false;
			return path.removeLastSegments(2).toFile().equals(Platform.getLocation().toFile());
		}
		/**
		 * Get the name of the project
		 * 
		 * @return String
		 */
		public String getProjectName() {
			return projectName;
		}
	}
    
    
    private final static String STORE_COPY_PROJECT_ID = "WizardProjectsImportPage.STORE_COPY_PROJECT_ID"; 
	
    private final static String STORE_ARCHIVE_SELECTED = "WizardProjectsImportPage.STORE_ARCHIVE_SELECTED";	
    
	private Text directoryPathField;
	private CheckboxTreeViewer projectsList;