Bug 299212 [Preferences] BIDI_BDL: Incorrect path display in Linked Resources list of Preferences dialog
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/PathVariableDialog.java
private boolean nameEntered = false;
    /**
     * Whether a variable location has been entered.  
     */
    private boolean locationEntered = false;
    /**
     * The standard message to be shown when there are no problems being
     * reported.
     */
    final private String standardMessage;
    /**
     * Constant for defining this dialog as intended to create a new variable
     * (value = 1).
     */
    public final static int NEW_VARIABLE = 1;
    /**
     * Constant for defining this dialog as intended to edit an existing
     * variable (value = 2).
     */
    public final static int EXISTING_VARIABLE = 2;
    /**
     * Constant for defining this dialog as intended to edit an existing link
     * location (value = 3).
     */
    public final static int EDIT_LINK_LOCATION = 3;
    private IResource currentResource = null;
    /**
     * Constructs a dialog for editing a new/existing path variable.
     * 
     * @param parentShell the parent shell