Bug 55884 Loading a user library from file does not warn when overwriting an existing library [build path]
Works in I2004032400010 + plug-in export for I200403240800 Add library 'mylib'. Save it. Change it. Load library from file. ==> should warn that 'mylib' gets changed.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/UserLibraryPreferencePage.java
}
		
	}
	
	private IDialogSettings fDialogSettings;
	private TreeListDialogField fLibraryList;
		
	private static final int IDX_NEW= 0;
	private static final int IDX_EDIT= 1;
	private static final int IDX_ADD= 2;
	private static final int IDX_REMOVE= 3;
	private static final int IDX_LOAD= 5;
	private static final int IDX_SAVE= 6;
	
	/**
	 * Constructor for ClasspathVariablesPreferencePage
	 */
	public UserLibraryPreferencePage() {
		setPreferenceStore(JavaPlugin.getDefault().getPreferenceStore());
	
		
		setTitle(PreferencesMessages.getString("UserLibraryPreferencePage.title")); 
		setDescription(PreferencesMessages.getString("UserLibraryPreferencePage.description")); 
		noDefaultAndApplyButton();
		fDialogSettings= JavaPlugin.getDefault().getDialogSettings();
		
		UserLibraryAdapter adapter= new UserLibraryAdapter();
		String[] buttonLabels= new String[] {
				PreferencesMessages.getString("UserLibraryPreferencePage.libraries.new.button"), 
				PreferencesMessages.getString("UserLibraryPreferencePage.libraries.edit.button"),